ZLEY®Isopentyldiol (CAS 2568-33-4):
A Next-Generation Green Humectant & Solubility Booster
What is ZLEY®Isopentyldiol?
ZLEY®Isopentyldiol (CAS 2568-33-4) is a bio-based polyol valued for its exceptional moisturizing properties, mildness, and multifunctionality. It provides long-lasting hydration while acting as an excellent solvent and penetration enhancer, boosting the efficacy and stability of active ingredients in formulations. With its lightweight feel and natural preservation-boosting capabilities, it is an ideal choice for creating modern, high-quality, low-irritation personal care products.
ZLEY® is a professional supplier of Pentylene Glycol, offering high-purity, sustainably produced, and consistently stable products. Leveraging a robust global supply chain, we provide technical support and reliable delivery to customers in over 60 countries.
Product Specifications
| Property | Details |
| INCI Name | Isopentyldiol |
| CAS Number | 2568-33-4 |
| Appearance | Colorless transparent liquid; nearly odorless |
| Recommended Usage | 0.1% – 2.0% |
| Solubility | Miscible with water, ethanol, and most organic solvents |
| Key Functions | Humectant, solvent, viscosity modifier, preservative booster |
| Processing | Can be added to either water or oil phase; recommended to add during water phase preparation. Excellent thermal and chemical stability. |
Is ZLEY®Isopentyldiol Safe?
Isopentyldiol is widely recognized as a highly safe cosmetic ingredient. It is significantly milder than propylene glycol, with zero irritation in eye tests and very low sensitization potential. Extensive safety data supports its use across all skin types, including sensitive skin. Under normal, reasonable, and foreseeable conditions of use, this ingredient is safe.
Applications of ZLEY®Isopentyldiol
- Serums & Creams: Core humectant that provides lightweight, non-sticky hydration
- Sunscreens: Stabilizer and solubilizer for hard-to-dissolve UV filters
- Color Cosmetics (foundation, mascara): Viscosity control and improved application smoothness
- Cleansers (micellar waters, facial washes): Boosts cleansing power while reducing dryness from surfactants
- Preservative-Free Systems: Supports preservation through its mild antimicrobial activity
Why Source ZLEY®Isopentyldiol from ZLEY?
With over 20 years in the personal care industry, ZLEY doesn’t just supply high-purity Isopentyldiol—we ensure sustainable sourcing and production stability. We partner with you to create innovative, green formulations that meet growing market demand for mild, effective, and eco-friendly products.
What Technical Support Can You Expect When Sourcing ZLEY®Isopentyldiol?
As your professional partner, ZLEY® provides comprehensive value-added services:
Formulation Support: Guidance on specific applications for hydration, solubilization, stabilization of active ingredients (like Vitamin C, plant extracts), and building low-irritation systems.
Regulatory Consulting: Assistance in confirming compliance status and usage restrictions in major global markets (currently widely permitted).
Quality & Supply Assurance: Rigorous quality control ensures a colorless, odorless, high-purity product, backed by competitive pricing and reliable just-in-time global logistics.
Market Trend Insights: Sharing of the latest trends and application cases regarding green solvents, mild formulations, and the “clean beauty” movement.
Frequently Asked Questions AboutZLEY®Isopentyldiol
Q1: How does Isopentyldiol compare toZLEY®Isopentyldiol or Butylene Glycol?
| Advantage | Why It Matters |
| Milder | Significantly lower irritation and sensitization potential—ideal for sensitive skin |
| More Multifunctional | Beyond hydration, it excels as a solubilizer and preservative booster |
| Better Feel | Lightweight, non-sticky texture enhances user experience |
| Sustainable | Primarily derived from renewable plant sources—clean beauty compliant |
Q2: Does Isopentyldiol really help with preservation?
Yes. It has inherent broad-spectrum antimicrobial activity against bacteria and fungi. While rarely used alone as a sole preservative, it significantly reduces the need for traditional preservatives—making it a key enabler for “preservative-free” or “low-preservative” formulations.
Q3: How can I get samples or technical data?
Contact our international team at [email protected]. Please include your company information, specific application needs (e.g., product type under development), and target market—we’ll provide tailored technical documents, samples, and commercial terms.