ZLEY® BRC-WS (CAS 1135-24-6, 128446-35-5, 504-63-2, 7732-18-5, 7631-90-5):
Brightening · Anti-Inflammatory · Spot Correction – A Next-Generation Brightening Agent for Sensitive Skin

Aperçu du produit
ZLEY® BRC-WS, also known as 577 Supramolecular Vesicles, features advanced supramolecular vesicle technology for sustained release, using hydroxypropyl-β-cyclodextrin (HPBCD) to encapsulate 4-Butylresorcinol (also known as 577 or Rucinol). This proprietary technology solves the water solubility challenge of 4-Butylresorcinol, enhances its stability, improves skin penetration, and increases its mildness. The result is a water-soluble, transparent, stable, long-acting, gentle brightening product with excellent safety and efficacy.
ZLEY® is a professional supplier of BRC-WS, providing stable quality, technical support, and global delivery services covering over 60 countries.
ZLEY® BRC-WS Product Information
| Paramètre | Spécifications |
| Nom INCI | 4-Butylresorcinol, Hydroxypropyl Cyclodextrin, 1,3-Propanediol, Water, Sodium Bisulfite |
| Numéros CAS | 1135-24-6, 128446-35-5, 504-63-2, 7732-18-5, 7631-90-5 |
| Apparence | Colorless to pale yellow transparent liquid |
| Utilisation recommandée | 1 – 8% |
| Solubilité | Soluble in water at room temperature |
| Recommended pH Range | Stable within pH 4 – 8 |
| Traitement | Add directly to the formulation at room temperature and mix thoroughly |
| Principaux avantages | Brightening, antioxidant, post-acne mark fading |
| Storage Note | 4-Butylresorcinol is a phenolic compound that may change color upon exposure to air and sunlight. Protect raw materials and finished products with light-protective packaging. |
Is ZLEY® BRC-WS Safe?
Yes. ZLEY® BRC-WS is considered safe under normal, reasonable, and foreseeable conditions of use at the following recommended maximum concentrations:
| Type de produit | Concentration maximale sans danger |
| Facial toners/lotions | 5.2% |
| Body creams/lotions | 2.0% |
| Other leave-on products | 8.0% |
| Produits à rincer | 0.4% |
Applications des produits
In cosmetics and skincare, ZLEY® BRC-WS functions as a agent de soin de la peau primarily used in brightening and spot-correction products.
Why Source ZLEY® BRC-WS from ZLEY®?
Grâce à plus de 20 ans d'efforts dévoués et de recherche de l'excellence, ZLEY® est devenue une entreprise moderne intégrant la recherche, la production, le contrôle de la qualité et les ventes. Nous nous engageons à fournir des matières premières, des produits semi-finis et des solutions de formulation personnalisées de la plus haute qualité pour les soins personnels. Nous nous efforçons de répondre aux divers besoins de nos clients et de garantir la fourniture de produits et de services de qualité supérieure.
What Technical Support Can You Expect When Sourcing ZLEY® BRC-WS?
En tant que fournisseur spécialisé, ZLEY® offre une valeur qui va au-delà du produit lui-même :
- Soutien à l'application de la formulation : Suggestions de formulation de base, recommandations de combinaisons et conseils de traitement
- Services de conseil en matière de réglementation : Aide à l'interprétation des exigences réglementaires pour les marchés cibles
- Assurance de la qualité et de l'approvisionnement : Qualité constante des produits, prix compétitifs et logistique mondiale fiable
- Informations sur les tendances du marché : Les dernières dynamiques du marché et les tendances en matière d'application des ingrédients
ZLEY® BRC-WS – Frequently Asked Questions (FAQ)
Q1: What is 4-Butylresorcinol (577) and why is it special?
A: 4-Butylresorcinol (577) is a powerful tyrosinase inhibitor. It is 2.5 times more effective than Kojic Acid and 22 times more effective than Arbutin. However, free 4-Butylresorcinol has poor solubility, low stability, and potential irritation – issues that are effectively solved by ZLEY® BRC-WS encapsulation technology.
Q2: How does ZLEY® BRC-WS solve solubility and stability problems?
A: It uses hydroxypropyl-β-cyclodextrin (HPBCD) to form supramolecular vesicles that encapsulate 4-Butylresorcinol. This makes the complex fully water‑soluble, protects it against oxidation and light, and results in a transparent, stable, and gentle brightening ingredient.
Q3: Are there special storage requirements?
A: Yes. Due to its phenolic nature, store both the raw material and finished products in light‑protective (opaque or amber) containers, in a cool, dry place. Proper storage ensures excellent stability.
Q4 : Comment demander des échantillons, de la documentation technique et des tarifs ?
A: Contact our export team at [email protected]. Please include your company details, intended application, and target market so we can provide relevant support.
