{"id":9576,"date":"2026-07-15T17:29:16","date_gmt":"2026-07-15T09:29:16","guid":{"rendered":"https:\/\/www.zleygroup.com\/?p=9576"},"modified":"2026-07-20T14:36:55","modified_gmt":"2026-07-20T06:36:55","slug":"vanillyl-butyl-ether-formulation-guide","status":"publish","type":"post","link":"https:\/\/www.zleygroup.com\/ja\/vanillyl-butyl-ether-formulation-guide\/","title":{"rendered":"\u30d0\u30cb\u30ea\u30eb\u30d6\u30c1\u30eb\u30a8\u30fc\u30c6\u30eb\uff1a\u8cfc\u5165\u8005\u5411\u3051\u914d\u5408\u30fb\u5b89\u5168\u6027\u30ac\u30a4\u30c9"},"content":{"rendered":"<style id=\"zley-image-fix-9576\">#post-9576 .zley-post-featured{display:none!important}<\/style>\n<p><strong>\u30d0\u30cb\u30ea\u30eb\u30d6\u30c1\u30eb\u30a8\u30fc\u30c6\u30eb<\/strong> is a sensorial cosmetic ingredient used to create a controlled warming perception. That simple description hides the decisions that determine whether a commercial formula feels pleasantly warm, uncomfortably hot, uneven from one application to the next, or difficult to defend from a safety and claims perspective.<\/p>\n<p>This guide gives cosmetic buyers, formulation teams, and contract manufacturers a practical framework for qualifying <a href=\"https:\/\/www.zleygroup.com\/products\/zleyvanillyl-butyl-ether-2\/\">ZLEY Vanillyl Butyl Ether<\/a>, designing a dose-screening program, interpreting the published evidence, controlling the finished-product assay, and preparing an RFQ that surfaces risk before scale-up.<\/p>\n<div style=\"border-left:4px solid #18794e;background:#f4f8f6;padding:18px 20px;margin:24px 0;\">\n<p><strong>\u7c21\u5358\u306a\u7b54\u3048\uff1a<\/strong> Vanillyl Butyl Ether, CAS 82654-98-6, is a vanilloid that can activate the TRPV1 sensory pathway. ZLEY supplies it as a light yellow to light reddish-brown liquid that is readily soluble in ethanol and propylene glycol and slightly soluble in oils. The intended effect is a perception of warmth, not proof that a formula raises tissue temperature, improves circulation, relieves pain, burns fat, or grows hair. Finished-product dosing must be set by exposure, application site, sensory testing, sensitization risk, local regulation, and claim substantiation.<\/p>\n<\/div>\n<figure class=\"wp-block-image\" style=\"max-width:760px;margin:28px auto;\"><a href=\"https:\/\/www.zleygroup.com\/products\/zleyvanillyl-butyl-ether-2\/\" style=\"display:block;aspect-ratio:20\/17;overflow:hidden;background:#f3f4f4;\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.zleygroup.com\/wp-content\/uploads\/2026\/06\/a7823730ae877b32962df27e48d228f6.jpg\" alt=\"Vanillyl Butyl Ether light yellow liquid for cosmetic formulation testing\" width=\"800\" height=\"800\" style=\"display:block;width:100%;height:100%;object-fit:cover;object-position:center top;\" title=\"\"><\/a><figcaption>Vanillyl Butyl Ether is supplied as a light yellow to light reddish-brown liquid. Confirm lot-specific identity, assay, color, odor and solution behavior before scale-up.<\/figcaption><\/figure>\n<h2>What Is Vanillyl Butyl Ether?<\/h2>\n<p>Vanillyl Butyl Ether is the INCI name for 4-(butoxymethyl)-2-methoxyphenol. Its vanillyl structure is related to compounds that interact with transient receptor potential vanilloid 1, or TRPV1, a sensory ion channel associated with heat and pungency. This explains why a cosmetic can feel warm without being a conventional heating device.<\/p>\n<div class=\"wp-block-table\" style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Identity field<\/th>\n<th>\u8cfc\u5165\u8005\u60c5\u5831<\/th>\n<th>Procurement implication<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>INCI<\/td>\n<td>\u30d0\u30cb\u30ea\u30eb\u30d6\u30c1\u30eb\u30a8\u30fc\u30c6\u30eb<\/td>\n<td>Use the exact INCI in specifications, safety assessments, product information files, and ingredient lists.<\/td>\n<\/tr>\n<tr>\n<td>CAS<\/td>\n<td>82654-98-6<\/td>\n<td>Match this number across the COA, SDS, TDS, regulatory statement, and analytical method.<\/td>\n<\/tr>\n<tr>\n<td>Molecular formula<\/td>\n<td>C12H18O3<\/td>\n<td>Confirmed in the <a href=\"https:\/\/precision.fda.gov\/uniisearch\/srs\/unii\/s2uln37c9r\" target=\"_blank\" rel=\"noopener nofollow\">FDA GSRS identity record<\/a>.<\/td>\n<\/tr>\n<tr>\n<td>UNII<\/td>\n<td>S2ULN37C9R<\/td>\n<td>An identity code; it does not mean FDA approval or establish a cosmetic use level.<\/td>\n<\/tr>\n<tr>\n<td>EC\/List number<\/td>\n<td>444-010-7<\/td>\n<td>Shown in the <a href=\"https:\/\/echa.europa.eu\/substance-information\/-\/substanceinfo\/100.103.929\" target=\"_blank\" rel=\"noopener nofollow\">ECHA substance record<\/a>. Confirm the record that applies to the exact supplier grade.<\/td>\n<\/tr>\n<tr>\n<td>ZLEY appearance<\/td>\n<td>Light yellow to light reddish-brown liquid<\/td>\n<td>Set controlled color and odor limits because drift can affect both aesthetics and fragrance.<\/td>\n<\/tr>\n<tr>\n<td>ZLEY solubility description<\/td>\n<td>Readily soluble in ethanol and propylene glycol; slightly soluble in oils<\/td>\n<td>Qualify the complete solvent system and final formula, not only a clear concentrated preblend.<\/td>\n<\/tr>\n<tr>\n<td>Primary sensorial pathway<\/td>\n<td>TRPV1 activation<\/td>\n<td>Supports a warming-development hypothesis but does not replace finished-product safety or claims testing.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>What the Published Evidence Actually Shows<\/h2>\n<p>The literature confirms a plausible warming mechanism and gives useful safety and analytical signals. It does not establish one universal concentration for every body site, vehicle, climate, or consumer population.<\/p>\n<div class=\"wp-block-table\" style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Evidence source<\/th>\n<th>Useful result<\/th>\n<th>What it does not prove<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35280525\/\" target=\"_blank\" rel=\"noopener nofollow\">2022 TRPV1 study<\/a><\/td>\n<td>Vanillyl Butyl Ether dose-dependently increased intracellular calcium in mouse-TRPV1-expressing HEK293 cells, and mutation of capsaicin-sensing sites reduced the response.<\/td>\n<td>This is mechanistic cell and sensory-neuron evidence, not a clinical demonstration of a commercial cosmetic&#8217;s benefit or tolerance.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/26645885\/\" target=\"_blank\" rel=\"noopener nofollow\">2016 human sensory study<\/a><\/td>\n<td>Topical 0.1 wt% Vanillyl Butyl Ether produced measurable sensory irritation in a small human test. Menthol at 0.3 wt% reduced the reported irritation; the study figures describe n=10 per condition.<\/td>\n<td>It does not make 0.1% a recommended level, nor does it show that adding menthol automatically makes a formula safe or pleasant.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/fragrancematerialsafetyresource.elsevier.com\/sites\/default\/files\/82654-98-6.pdf\" target=\"_blank\" rel=\"noopener nofollow\">2021 RIFM safety assessment<\/a><\/td>\n<td>The weight-of-evidence assessment treated Vanillyl Butyl Ether as a weak skin sensitizer with a NESIL of 3500 micrograms\/cm2. A murine LLNA reported an EC3 of 14.58%, while a 104-person confirmation-of-no-induction test at 3% reported no reactions indicative of sensitization.<\/td>\n<td>A negative human induction test does not erase the sensitization hazard. Exposure area, product category, frequency, retention, and aggregate exposure remain part of the risk assessment.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/echa.europa.eu\/registration-dossier\/-\/registered-dossier\/1538\/7\/4\/2\" target=\"_blank\" rel=\"noopener nofollow\">ECHA registration-dossier skin study<\/a><\/td>\n<td>In a GLP OECD 404 rabbit study on neat material, mean 24-72 hour erythema scores were 1.3 and edema scores were 0.7-1.07; reported reactions were reversible.<\/td>\n<td>Raw-material animal data cannot predict the exact sensory experience, allergy risk, or tolerance of a finished lip, eye-area, scalp, or body formula.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.mdpi.com\/2079-9284\/4\/1\/9\" target=\"_blank\" rel=\"noopener nofollow\">2017 finished-product HPLC method<\/a><\/td>\n<td>A C18-UV method used 1:1 isopropanol-water extraction, a 12-100 micrograms\/mL calibration range, 230 nm detection, and reported intra- and inter-day RSD values of 0.67% and 0.73% in the validation.<\/td>\n<td>This is a useful method-development starting point, not a supplier-neutral transfer protocol that can be adopted without matrix recovery, specificity, and robustness work.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/38135109\/\" target=\"_blank\" rel=\"noopener nofollow\">2023 oral desensitization study<\/a><\/td>\n<td>In a 45-person oral study, burn ratings for Vanillyl Butyl Ether and other chemesthetic stimuli changed after repeated capsaicin exposure.<\/td>\n<td>Oral sensory adaptation cannot be converted into a skin-care efficacy claim or used to dismiss cumulative-use complaints.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>How to Interpret Apparently Conflicting Safety Results<\/h3>\n<ul>\n<li><strong>Hazard and risk are different questions.<\/strong> Sensitization-positive assays identify a hazard. A negative human induction test at a defined exposure describes one study condition. Risk depends on the finished-product dose per area, frequency, site, duration, and population.<\/li>\n<li><strong>Warmth and irritation overlap.<\/strong> A TRPV1-mediated sensation can be the intended product experience, but escalating sting, burning, pain, persistent redness, or swelling is not simply a stronger benefit.<\/li>\n<li><strong>Raw-material ceilings are not launch concentrations.<\/strong> Supplier recommendations help frame screening. They do not replace a toxicological assessment, local law, or a product-specific use test.<\/li>\n<li><strong>Vehicle effects matter.<\/strong> Ethanol, glycols, surfactants, occlusion, massage, fragrance, and penetration enhancers can alter onset, intensity, and duration.<\/li>\n<\/ul>\n<h2>Define the Sensory Brief Before Ordering a Sample<\/h2>\n<p>A buyer should translate words such as warm, hot, tingling, plumping, invigorating, or spa-like into measurable acceptance criteria. Without a defined target, teams often optimize for maximum intensity and discover too late that the formula has a narrow tolerance margin.<\/p>\n<div class=\"wp-block-table\" style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Brief element<\/th>\n<th>Question to answer<\/th>\n<th>Example decision rule<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Onset<\/td>\n<td>How soon after application should warmth be noticeable?<\/td>\n<td>Record time to first perception and avoid a delayed surge after the user has applied more product.<\/td>\n<\/tr>\n<tr>\n<td>Peak<\/td>\n<td>What intensity is acceptable on the intended body site?<\/td>\n<td>Use an anchored sensory scale with a pre-defined upper comfort limit.<\/td>\n<\/tr>\n<tr>\n<td>Duration<\/td>\n<td>How long should the effect remain noticeable?<\/td>\n<td>Track both intended persistence and any late discomfort.<\/td>\n<\/tr>\n<tr>\n<td>Uniformity<\/td>\n<td>Does the sensation remain even across the application area?<\/td>\n<td>Reject local hot spots that indicate poor dispersion or application sensitivity.<\/td>\n<\/tr>\n<tr>\n<td>Visible response<\/td>\n<td>Is transient redness acceptable for the concept and market?<\/td>\n<td>Separate consumer perception, investigator grading, and instrumental color measurement.<\/td>\n<\/tr>\n<tr>\n<td>Recovery<\/td>\n<td>How quickly must the skin return to baseline?<\/td>\n<td>Define a stop rule for persistent redness, pain, edema, or unexpected symptoms.<\/td>\n<\/tr>\n<tr>\n<td>Population<\/td>\n<td>Who should and should not use the product?<\/td>\n<td>Predefine exclusions, warning language, frequency, amount, and application site.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>For concepts that combine warming and cooling cues, review the <a href=\"https:\/\/www.zleygroup.com\/products\/zley-ml-menthyl-lactate\/\">ZLEY Menthyl Lactate product page<\/a>. A published interaction between menthol and Vanillyl Butyl Ether is a reason to test the complete sensory system, not a shortcut to an irritation-free claim.<\/p>\n<h2>Supplier Specifications That Matter<\/h2>\n<p>A purchase specification should control attributes that can change sensory intensity, odor, color, stability, and toxicological interpretation.<\/p>\n<div class=\"wp-block-table\" style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Specification area<\/th>\n<th>\u4f55\u3092\u4f9d\u983c\u3059\u3079\u304d\u304b<\/th>\n<th>\u305d\u306e\u91cd\u8981\u6027<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3<\/td>\n<td>INCI, CAS, chromatographic or spectroscopic identity, and reference-standard traceability<\/td>\n<td>Prevents substitution with a different vanilloid or a diluted commercial blend.<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30c3\u30bb\u30a4<\/td>\n<td>Active-content range, method, reporting basis, and system suitability<\/td>\n<td>Small dose differences can change a deliberately perceptible sensory endpoint.<\/td>\n<\/tr>\n<tr>\n<td>Related substances<\/td>\n<td>Named and total impurity limits with a representative chromatogram<\/td>\n<td>Related vanillyl compounds can affect odor, color, reactivity, and safety review.<\/td>\n<\/tr>\n<tr>\n<td>Residual solvents<\/td>\n<td>Route-specific solvent list, limits, and test method<\/td>\n<td>Supports exposure assessment and customer restricted-substance requirements.<\/td>\n<\/tr>\n<tr>\n<td>Water and acidity<\/td>\n<td>Water or loss-on-drying method plus acid-value or relevant acidity control<\/td>\n<td>Helps explain hydrolysis risk, odor drift, and lot-to-lot behavior.<\/td>\n<\/tr>\n<tr>\n<td>\u5916\u89b3<\/td>\n<td>Instrumental or controlled visual color range and odor description<\/td>\n<td>Prevents a technically conforming lot from changing the formula&#8217;s aesthetics.<\/td>\n<\/tr>\n<tr>\n<td>Physical constants<\/td>\n<td>Density, refractive index, and viscosity where useful<\/td>\n<td>Supports incoming identity checks, metering, and scale-up calculations.<\/td>\n<\/tr>\n<tr>\n<td>Contaminants<\/td>\n<td>Heavy metals, microbiological rationale, and relevant restricted-substance statements<\/td>\n<td>Needed for market and customer compliance; limits should be risk based.<\/td>\n<\/tr>\n<tr>\n<td>\u5b89\u5b9a\u6027<\/td>\n<td>Retest period, storage temperature, light protection, packaging, and available stability basis<\/td>\n<td>Supports warehouse controls and prevents use of oxidized or discolored material.<\/td>\n<\/tr>\n<tr>\n<td>Change control<\/td>\n<td>Manufacturing site, synthesis route, solvent, specification, and packaging notification<\/td>\n<td>A route or impurity change can invalidate analytical and safety assumptions.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Formulation Workflow for Controlled Warming<\/h2>\n<ol>\n<li><strong>Confirm the dosage basis.<\/strong> Determine whether the quotation is for neat Vanillyl Butyl Ether or a solution. Calculate the neat active in the final product and in the amount applied per square centimeter.<\/li>\n<li><strong>Set a conservative screening ladder.<\/strong> A useful early bench design can include a vehicle control plus 0.02%, 0.05%, and 0.10% neat active. These are experimental brackets, not recommended final levels. Add higher levels only after the safety assessor, target site, supplier dossier, and sensory results justify them.<\/li>\n<li><strong>Build a solvent map.<\/strong> ZLEY describes the material as readily soluble in ethanol and propylene glycol and slightly soluble in oils. Check the complete preblend at the intended temperature, then repeat after dilution into the full base.<\/li>\n<li><strong>Prevent local concentration hot spots.<\/strong> Prepare a uniform preblend, add it under sufficient mixing, and verify distribution at the top, middle, and bottom of the vessel. A visually clear batch can still be non-uniform.<\/li>\n<li><strong>Choose the addition point from stability data.<\/strong> If robust thermal-degradation data are unavailable, add at the lowest practical temperature that still gives complete incorporation. Record time, temperature, shear, and order of addition.<\/li>\n<li><strong>Add all sensory modifiers before judging the effect.<\/strong> Ethanol, glycols, fragrance, menthol, cooling agents, surfactants, occlusives, and massage can change perception. Evaluate the sellable formula, not an isolated active solution.<\/li>\n<li><strong>Standardize the applied dose.<\/strong> Sensory panels must use a controlled mass per area, application technique, site, acclimation period, room temperature, and scoring schedule.<\/li>\n<li><strong>Verify active recovery.<\/strong> Measure Vanillyl Butyl Ether at time zero and through stability. Visual appearance and sensory intensity cannot distinguish degradation from poor extraction or non-uniform dosing.<\/li>\n<\/ol>\n<h3>Supplier Recommendation Is Not a Starting Formula<\/h3>\n<p>ZLEY&#8217;s product page lists supplier ceilings of up to 1.5% for leave-on body products, 2.5% for rinse-off body products, 0.5% for leave-on eye-area products, and 1% for rinse-off eye-area products. These figures are not universal legal maxima, not a recommendation to formulate at the ceiling, and not evidence that every finished product at those levels will be comfortable. The published 0.1 wt% human sensory study and the RIFM sensitization assessment are strong reasons to begin lower and evaluate exposure by body site.<\/p>\n<h2>Common Formulation Failures and Corrective Actions<\/h2>\n<div class=\"wp-block-table\" style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Observed failure<\/th>\n<th>\u8003\u3048\u3089\u308c\u308b\u539f\u56e0<\/th>\n<th>\u662f\u6b63\u63aa\u7f6e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Local hot spots<\/td>\n<td>Incomplete preblend, poor mixing, dosing error, or non-uniform application<\/td>\n<td>Validate addition order, mixing time, sampling locations, and active assay across the batch.<\/td>\n<\/tr>\n<tr>\n<td>Delayed excessive heat<\/td>\n<td>User reapplies before peak onset or the vehicle slows release<\/td>\n<td>Map onset and peak over time; adjust the dose, delivery system, instructions, or package output.<\/td>\n<\/tr>\n<tr>\n<td>Unexpected redness or pain<\/td>\n<td>Concentration, penetration, occlusion, massage, or another irritant increased the response<\/td>\n<td>Stop the test, reduce exposure, identify interactions, and repeat only under an approved safety protocol.<\/td>\n<\/tr>\n<tr>\n<td>Weak or inconsistent perception<\/td>\n<td>Assay drift, poor dispersion, packaging loss, panel variability, or sensory adaptation<\/td>\n<td>Pair standardized sensory testing with active recovery and package compatibility data.<\/td>\n<\/tr>\n<tr>\n<td>Odor conflict<\/td>\n<td>The ingredient&#8217;s vanilla-like note changed the fragrance profile<\/td>\n<td>Evaluate fragrance with the active present and set odor limits for incoming lots.<\/td>\n<\/tr>\n<tr>\n<td>\u8272\u305a\u308c<\/td>\n<td>Oxidation, impurity variation, light, heat, or fragrance interaction<\/td>\n<td>Compare lots, monitor assay and related substances, and test protective packaging.<\/td>\n<\/tr>\n<tr>\n<td>Assay below target<\/td>\n<td>Extraction loss, adsorption, degradation, or non-representative sampling<\/td>\n<td>Validate recovery for the exact matrix before changing the formula or supplier.<\/td>\n<\/tr>\n<tr>\n<td>Consumer complaints after repeated use<\/td>\n<td>Cumulative irritation, sensitization, use outside instructions, or excessive applied amount<\/td>\n<td>Investigate exposure and chronology, retain samples, obtain medical review where appropriate, and reassess warnings and formula.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Safety Program for Body, Scalp, Lip, and Eye-Area Concepts<\/h2>\n<ul>\n<li><strong>Run an exposure-based assessment.<\/strong> Convert concentration into dose per area and include frequency, retention, body site, aggregate exposure, and foreseeable misuse.<\/li>\n<li><strong>Do not market a sensory hazard as a benefit.<\/strong> Warmth can be intended; persistent burning, pain, swelling, blistering, or prolonged redness requires a stop rule and adverse-event process.<\/li>\n<li><strong>Address sensitization explicitly.<\/strong> The RIFM assessment identifies Vanillyl Butyl Ether as a weak sensitizer. Avoid absolute claims such as non-allergenic, zero irritation, or suitable for everyone.<\/li>\n<li><strong>Use site-specific testing.<\/strong> Body, scalp, lip, and periocular exposure are not interchangeable. Lip concepts add ingestion and mucosal considerations. Eye-area concepts require a dedicated ocular and migration assessment.<\/li>\n<li><strong>Test the final package.<\/strong> Pump output, rollerballs, sticks, and dropper variability can change the amount delivered and create localized overexposure.<\/li>\n<li><strong>Include repeated-use conditions.<\/strong> A single patch or short sensory test may miss cumulative irritation, sensitization complaints, or changing perception over time.<\/li>\n<li><strong>Control panel ethics and rescue procedures.<\/strong> Use informed consent, exclusion criteria, predefined stopping rules, trained supervision, and an appropriate wash-off or response plan.<\/li>\n<\/ul>\n<p>For broader comfort-focused concept development, browse ZLEY&#8217;s <a href=\"https:\/\/www.zleygroup.com\/collection\/soothing\/\">soothing ingredient collection<\/a> and discuss complete-formula testing with the <a href=\"https:\/\/www.zleygroup.com\/formulation\/\">formulation support team<\/a>.<\/p>\n<h2>Stability and Finished-Product Analytical Control<\/h2>\n<p>A warming formula needs both sensory and chemical stability. A stable assay with unstable perception can indicate packaging, application, or sensory adaptation effects; stable perception with a falling assay may indicate an insensitive panel or a confounding irritant.<\/p>\n<ul>\n<li><strong>Physical:<\/strong> appearance, color, odor, phase separation, clarity, viscosity, pH where relevant, and package function.<\/li>\n<li><strong>Chemical:<\/strong> Vanillyl Butyl Ether assay, related substances, and validated extraction recovery.<\/li>\n<li><strong>Distribution:<\/strong> top, middle, and bottom sampling after manufacture plus early and late package units during filling.<\/li>\n<li><strong>Environmental:<\/strong> accelerated and long-term storage, temperature cycling where relevant, and controlled light and oxygen exposure.<\/li>\n<li><strong>\u30d1\u30c3\u30b1\u30fc\u30b8:<\/strong> adsorption, permeation, discoloration, closure compatibility, leakage, and delivered-dose consistency.<\/li>\n<li><strong>Sensory:<\/strong> blinded comparison to a retained time-zero control using standardized application and a pre-approved scoring schedule.<\/li>\n<\/ul>\n<p>The published HPLC method is especially useful because it demonstrates that matrix extraction can be validated in a complex balm-like product. Procurement teams should ask whether the supplier can provide an assay method, reference standard, representative chromatogram, and troubleshooting support. The buyer&#8217;s laboratory must still establish specificity, recovery, precision, linearity, and robustness for its own matrix.<\/p>\n<h2>EU and U.S. Regulatory and Claims Screening<\/h2>\n<div class=\"wp-block-table\" style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Question<\/th>\n<th>Screening answer<\/th>\n<th>\u8cfc\u5165\u8005\u306e\u5bfe\u5fdc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Is the INCI name recognized in the EU glossary?<\/td>\n<td>\u305d\u306e <a href=\"https:\/\/eur-lex.europa.eu\/eli\/dec_impl\/2025\/1175\/oj\" target=\"_blank\" rel=\"noopener nofollow\">2025 EU common ingredient name glossary decision<\/a> includes Vanillyl Butyl Ether and applies from 30 July 2026 after its transition period.<\/td>\n<td>A glossary entry supports ingredient naming. It is not a safety approval, positive list, or concentration authorization. Check the current <a href=\"https:\/\/eur-lex.europa.eu\/legal-content\/EN\/TXT\/?uri=CELEX%3A02009R1223-20260501\" target=\"_blank\" rel=\"noopener nofollow\">EU\u5316\u7ca7\u54c1\u898f\u5236<\/a>, Annexes, CPSR, PIF, claims file, and national requirements at launch.<\/td>\n<\/tr>\n<tr>\n<td>Does the FDA UNII mean approval?<\/td>\n<td>No. The GSRS record states that UNII availability does not imply regulatory review or approval.<\/td>\n<td>FDA explains that cosmetics and most cosmetic ingredients do not receive premarket approval, except relevant color additives. Review the <a href=\"https:\/\/www.fda.gov\/cosmetics\/cosmetic-products-ingredients\/cosmetic-ingredients\" target=\"_blank\" rel=\"noopener nofollow\">FDA cosmetic ingredient guidance<\/a> and maintain safety substantiation.<\/td>\n<\/tr>\n<tr>\n<td>Can a brand claim warming sensation?<\/td>\n<td>A formula-specific sensory claim can remain cosmetic when it describes the user experience and is adequately supported.<\/td>\n<td>Define onset, intensity, duration, population, and use conditions in the finished-product protocol.<\/td>\n<\/tr>\n<tr>\n<td>Can a brand claim increased circulation, pain relief, fat burning, or hair growth?<\/td>\n<td>Such claims can imply treatment or an effect on body structure or function.<\/td>\n<td>Review every label, website, sales deck, and advertisement under the <a href=\"https:\/\/www.fda.gov\/cosmetics\/cosmetics-laws-regulations\/it-cosmetic-drug-or-both-or-it-soap\" target=\"_blank\" rel=\"noopener nofollow\">FDA intended-use framework<\/a> and equivalent target-market rules.<\/td>\n<\/tr>\n<tr>\n<td>Can it be called non-irritating?<\/td>\n<td>An absolute statement conflicts with evidence that the ingredient deliberately produces chemesthetic sensation and can cause irritation or sensitization under some conditions.<\/td>\n<td>Use narrowly worded, formula-specific claims supported by appropriate tolerance and use testing.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>RFQ Checklist for Procurement Teams<\/h2>\n<p>Include enough context for the supplier to identify formulation and safety risks before quoting:<\/p>\n<ul>\n<li>Target countries, launch date, product type, application site, intended claims, and target consumer.<\/li>\n<li>Leave-on or rinse-off status, frequency, amount per use, application area, massage, occlusion, and foreseeable misuse.<\/li>\n<li>Target sensory onset, peak, duration, maximum comfort score, and acceptable visible response.<\/li>\n<li>Proposed neat-active level and whether the commercial grade is a solution or 100% active.<\/li>\n<li>Base formula, pH, solvent restrictions, alcohol level, fragrance, cooling agents, surfactants, and processing temperature.<\/li>\n<li>Required specification, COA, TDS, SDS, analytical method, reference standard, impurity profile, and residual-solvent statement.<\/li>\n<li>Skin sensitization package, exposure-based risk-assessment support, phototoxicity information, and site-specific safety information.<\/li>\n<li>Stability basis, retest period, storage, packaging, light protection, and change-control notification period.<\/li>\n<li>Sample quantity, pilot batch size, annual forecast, pack size, Incoterm, destination, and lead time.<\/li>\n<li>Need for troubleshooting, assay transfer, sensory-protocol input, or market-specific regulatory documents.<\/li>\n<\/ul>\n<p>Buyers comparing multiple sensorial concepts can also review ZLEY&#8217;s broader <a href=\"https:\/\/www.zleygroup.com\/product\/\">cosmetic ingredient portfolio<\/a>.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>Does Vanillyl Butyl Ether actually heat the skin?<\/h3>\n<p>It activates a heat- and pungency-associated sensory pathway, so users can perceive warmth. That does not automatically prove a measurable increase in skin or tissue temperature. If temperature is part of the claim, measure it in the finished-product study.<\/p>\n<h3>Is Vanillyl Butyl Ether the same as vanilla or vanillin?<\/h3>\n<p>No. It shares a vanillyl structural motif and may contribute a vanilla-like odor, but it is a distinct substance with CAS 82654-98-6. Do not substitute identity, safety, or assay data from vanillin.<\/p>\n<h3>What concentration should a formulator start with?<\/h3>\n<p>A vehicle control plus 0.02%, 0.05%, and 0.10% neat-active prototypes can be a practical screening ladder for some body concepts. These are development brackets, not final recommendations. Application site, exposure, sensitization risk, regulation, and the complete formula determine the next step.<\/p>\n<h3>Can Vanillyl Butyl Ether be used in a lip plumper?<\/h3>\n<p>A lip concept is possible only after lip-specific exposure, ingestion, mucosal tolerance, sensitization, claim, and package-dose assessment. Body-product data and supplier body-use ceilings cannot be transferred automatically to the lips.<\/p>\n<h3>Can menthol be used to reduce the hot feeling?<\/h3>\n<p>A small published study reported that 0.3 wt% menthol reduced sensory irritation from 0.1 wt% Vanillyl Butyl Ether. The interaction depends on concentrations, vehicle, site, and timing. Test the complete formula and do not use menthol to mask an excessive active level.<\/p>\n<h3>Is Vanillyl Butyl Ether suitable for sensitive skin?<\/h3>\n<p>That cannot be assumed. The ingredient is intentionally sensorial, and the RIFM assessment identifies a weak sensitization hazard. A sensitive-skin claim needs conservative exposure, formula-specific tolerance data, careful population selection, and non-absolute wording.<\/p>\n<h3>Is a clear batch enough to prove uniform dosing?<\/h3>\n<p>No. A liquid can look uniform while containing a concentration gradient or suffering loss during filling. Confirm top-middle-bottom assay, fill-stage samples, delivered dose, and package-unit consistency.<\/p>\n<p><em>Regulatory and scientific information in this article is a formulation-screening reference. Recheck current official requirements, supplier documentation, and finished-product evidence for every target market, application site, and claim.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>\u30d0\u30cb\u30ea\u30eb\u30d6\u30c1\u30eb\u30a8\u30fc\u30c6\u30eb\u306b\u95a2\u3059\u308b\u6280\u8853\u7684\u306a\u30d0\u30a4\u30e4\u30fc\u30ba\u30ac\u30a4\u30c9\u3002\u672c\u30ac\u30a4\u30c9\u3067\u306f\u3001\u6210\u5206\u306e\u540c\u5b9a\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306e\u4ed5\u69d8\u3001\u6e29\u611f\u4f5c\u7528\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u3001\u7528\u91cf\u30b9\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u3001\u88fd\u5264\u3001\u5b89\u5b9a\u6027\u3001\u611f\u4f5c\u6027\u3001\u52b9\u80fd\u8868\u793a\u3001\u304a\u3088\u3073\u898b\u7a4d\u4f9d\u983c\uff08RFQ\uff09\u306e\u8981\u4ef6\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>","protected":false},"author":1,"featured_media":9433,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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