1,2-Pentanediol, Cosmetic Grade Pentanediol
Product Name: 1,2-Pentanediol
INCI Name: Pentylene Glycol
Alias: 1,2-Dihydroxypentane, Pentanediol
Grade: Cosmetic Premium Grade (High Purity, Low Irritation, Industrial Stable Grade)
Raw Material Source: Synthetic refined high-purity diol raw material, purified by multi-stage distillation and impurity removal technology
Appearance: Colorless transparent viscous liquid, tasteless and odorless, clean and pure texture
Core Ingredients: High-purity 1,2-Pentanediol monomer, water-soluble diol active factors
MOQ (Minimum Order Quantity): 25KG
Solubility: Completely miscible with water, ethanol and most cosmetic solvents, excellent compatibility with all water-based and partial oil-based formulas, no precipitation, stable compounding
Core Efficacy: Multi-effect moisturizing and hydrating, mild antibacterial and antiseptic, synergistic preservative enhancement, formula solubilization and stabilization, reduce skin irritation, improve product texture
Key Characteristics: High purity and low impurity, ultra-mild non-irritating, no formaldehyde release, wide antibacterial spectrum, dual functions of moisturizing and antisepsis, strong formula adaptability, high temperature and low temperature resistance, stable long-term storage
Storage Condition: Sealed and stored in dry, cool and dark warehouse, avoid high temperature, open fire and strong light exposure; keep tightly sealed after opening to prevent moisture absorption and impurity mixing
Shelf Life: 24 Months
Application: Widely used in toner, lotion, cream, essence, facial mask, sensitive skin skincare products, no-preservative formula, daily washing and caring products, high-end mild cosmetic formulas
Cosmetic Grade Pentanediol, Mild Humectant, Antibacterial Preservative Booster, Water-soluble Solvent, Skin Moisturizing, Cosmetic Raw Material
1,2-Pentanediol, Cosmetic Grade Pentanediol
Cosmetic Grade 1,2-Pentanediol is a high-purity, low-irritation multifunctional diol cosmetic raw material, refined by multi-stage distillation and deep purification technology. Different from traditional single-function moisturizing glycols, it integrates moisturizing, solubilizing, stabilizing and antibacterial antiseptic functions, and is a core multifunctional auxiliary material for high-end mild cosmetics and preservative-free formula systems.
It has excellent water-locking and moisturizing properties, which can form a breathable moisturizing film on the skin surface, effectively relieve skin dryness and tightness, and improve dry and rough texture. As a classic mild preservative booster, it has a broad-spectrum inhibitory effect on common mold, yeast and bacteria in cosmetics, which can significantly improve the antibacterial ability of the formula, reduce the dosage of traditional preservatives, and even realize preservative-free formula production.
With ultra-mild physical properties, no odor, no irritation, no formaldehyde and harmful substance release, it can effectively neutralize and reduce the irritation of functional active ingredients in the formula, optimize product mildness. In addition, it has excellent solubilizing and stabilizing effects, which can improve the solubility of water-insoluble active ingredients, stabilize the formula system, prevent product stratification and deterioration, and improve the overall texture and shelf stability of cosmetics. It is suitable for all skin types, especially for sensitive skin and fragile muscle mild skincare formulas, and is an essential high-quality raw material for modern clean beauty cosmetics.



Key Benefits
• Dual Efficacy of Moisturizing & Antisepsis:Break the single function of traditional glycol raw materials, integrate deep moisturizing and broad-spectrum antibacterial antisepsis, realize skin care and formula protection in one step, and improve product cost performance.
• Mild & Safe, Zero Irritation:High-purity purification process, no residual harmful substances, no formaldehyde release, tasteless and odorless, low skin irritation, safe for sensitive skin and infant skincare products.
• Preservative Synergistic Enhancement:Effectively inhibit cosmetic microorganisms, significantly improve the antibacterial efficiency of compound preservative systems, reduce traditional preservative dosage, and support clean and mild formula positioning.
• Excellent Solubilization & Stabilization:Strong solubilizing ability for water-insoluble essence and active ingredients, stabilize formula pH and system balance, prevent stratification, precipitation and discoloration, and extend product shelf life.
• Reduce Formula Irritation:Neutralize the irritation of functional actives such as acids and plant extracts, optimize product mildness, improve skin comfort after use, and expand product audience.
• Strong Environmental Adaptability & High Stability:Resistant to high temperature, low temperature and pH fluctuation, stable efficacy in various cosmetic formula systems, not easy to decompose and inactivate, suitable for mass industrial production.
Applications
• Mild Skincare Water & Toner:Core moisturizing and antibacterial raw material for sensitive skin toner, soothing spray and daily hydrating lotion, ensure mild formula and long-term antiseptic stability.
• High-end Essence & Serum:Used in anti-aging essence, brightening serum and barrier repair essence, stabilize active ingredients, reduce formula irritation, and improve skin absorption comfort.
• Moisturizing Lotion & Cream:Added in face cream, body lotion and moisturizing cream, enhance product moisturizing effect, optimize creamy texture, and prevent product microbial deterioration.
• Preservative-free Mask Series:Special multifunctional raw material for facial mask liquid and smearable mask, replace part of traditional preservatives, realize mild and clean formula, and protect mask fresh activity.
• Sensitive & Infant Skincare Products:Preferred auxiliary material for infant lotion, sensitive skin soothing products and postoperative mild repair skincare, ensure ultra-low irritation and high safety of products.
• Daily Washing & Care Products:Widely used in mild facial cleanser, body wash, shampoo and other washing products, moisturize skin and hair, stabilize formula, and improve product mildness.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | 1,2-Pentanediol | Compliant |
INCI Name | Pentylene Glycol | Compliant |
Appearance | Colorless Transparent Viscous Liquid | Compliant |
Odor | Odorless, No Peculiar Smell | Compliant |
Purity | ≥99.0% | 99.5% |
pH Value (25℃) | 5.0~7.0 | 6.0 |
Solubility | Completely Miscible with Water, No Stratification | Qualified |
Heavy Metal (Pb) | ≤1ppm | 0.2ppm |
Arsenic (As) | ≤0.5ppm | 0.1ppm |
Microorganism | ≤100CFU/g, No Pathogenic Bacteria | Qualified |
Formaldehyde Content | Undetected | Undetected |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of 1,2-Pentanediol?
A1: The standard MOQ is 25KG, and sample orders are supported for formula testing and efficacy trial production.
• Q2: What certification documents can be provided?
A2: Complete COA, MSDS, heavy metal and microbial test reports and full set of customs clearance documents are available to support export declaration and cosmetic product filing.
• Q3: What is the recommended dosage in cosmetic formulas?
A3: The conventional addition ratio is 2%-8%; 2%-5% for daily moisturizing skincare products, 5%-8% for preservative-free formula products to enhance antibacterial stability.
• Q4: What is the core advantage of 1,2-Pentanediol compared with other glycols?
A4: Compared with propylene glycol and butylene glycol, it has lower irritation, better antibacterial and preservative synergistic effect, stronger moisturizing performance, no peculiar smell, and is more suitable for high-end clean beauty and sensitive skin formula systems.
• Q5: Is it suitable for long-term storage and high-temperature production?
A5: Yes, the product has high chemical stability, resistant to high temperature processing and long-term storage, no discoloration, no deterioration, no efficacy attenuation, adapting to various cosmetic production processes.
• Q6: Can it be compounded with other preservatives and actives?
A6: It has excellent compatibility with all cosmetic raw materials such as hyaluronic acid, plant extracts, traditional preservatives and functional actives, which can significantly improve the comprehensive stability and mildness of the formula.
• Q7: Do you support stable large-batch supply all year round?
A7: Independent purification production line ensures sufficient inventory and stable annual supply, supports long-term cooperative orders and customized formula matching services.
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