Cosmetic Grade Propylene Glycol（CAS 57-55-6）
Product Name: Propylene Glycol
INCI Name: Propylene Glycol
Chemical Name: 1,2-Propanediol
CAS No.: 57-55-6
Grade: Cosmetic & Daily Chemical Grade
Purity: ≥99.9%
Appearance: Colorless, Odorless, Transparent Viscous Liquid
Molecular Weight: 76.09
Molecular Formula: C₃H₈O₂
MOQ (Minimum Order Quantity): 1KG
Solubility: Fully miscible with water, ethanol and glycerin, compatible with most cosmetic solvent systems
Viscosity (25℃): Moderate viscosity, excellent fluidity and ductility
Boiling Point: 187.3℃
Refractive Index: 1.431 - 1.433
Key Characteristics: High purity and low impurity, excellent moisturizing and water-locking performance, strong solubilizing and penetrating power, mild and low irritation, antibacterial and antiseptic auxiliary effect, wide formula compatibility, stable system
Storage Condition: Sealed, dry, cool and ventilated environment, avoid high temperature, open exposure and strong light irradiation
Shelf Life: 24 Months
Application: Widely used in moisturizing skin care, emulsion cream formulas, essence solutions, cleansing products and color cosmetics as humectant, solvent, penetration enhancer and auxiliary preservative
Propylene Glycol, Cosmetic Grade Propylene Glycol, Skin Humectant, Cosmetic Solvent, Moisturizing Conditioner, Antiseptic Agent, Low Irritation Cosmetic Raw Material
Cosmetic Grade Propylene Glycol（CAS 57-55-6）
Cosmetic-grade Propylene Glycol is a high-purity diol functional raw material refined by advanced polymerization and purification process, which is one of the most versatile and safe base materials in the global cosmetic industry. With excellent hydrophilic and amphiphilic properties, it not only has efficient long-lasting moisturizing effect, but also can dissolve various functional active ingredients that are difficult to dissolve in water, effectively improving the solubility and utilization rate of essence additives.
It has outstanding skin penetration and ductility, which can assist active ingredients to penetrate the epidermal layer, improve skin absorption efficiency, and significantly enhance the efficacy of skin care products.
Different from traditional single humectant, it has mild auxiliary antibacterial and antiseptic effects, can inhibit the reproduction of miscellaneous bacteria in the formula, optimize the preservative system, and extend the shelf life of finished products.
The product features ultra-low impurity content, no peculiar smell, mild skin-friendly property, no irritation and sensitization. It has stable chemical properties, high temperature resistance, no discoloration and deterioration, fully compliant with EU, FDA and domestic cosmetic safety standards, and is an essential universal base solvent and functional humectant for all kinds of daily chemical and skin care formulas.
Key Benefits
• Efficient Long-Lasting Moisturizing: Excellent water-locking and moisture-retaining capacity, form a breathable moisturizing film on the skin surface, relieve dryness and tightness, and improve rough skin texture.
• Strong Solubilizing & Compatibility: Perfectly dissolve various essences, plant extracts and functional additives, solve precipitation and delamination problems, and stabilize formula system.
• Promote Skin Absorption: Excellent skin permeability, assist active ingredients in penetrating and absorbing, improve product efficacy and skin care experience.
• Auxiliary Antibacterial & Preservative: Inhibit bacterial and microbial reproduction, optimize the formula preservative system, reduce preservative dosage, and extend product shelf life.
• Mild & Ultra-Safe: High-purity low-residue formula, odorless and non-irritating, non-sensitizing, suitable for all skin types and sensitive skin formulas.
• Super Formula Stability: High temperature and oxidation resistant, stable performance in acid-base environment, no deterioration or stratification during long-term storage.
Applications
• Facial Skin Care Products: Widely used in moisturizing toner, lotion, facial cream, essence and facial mask as humectant and solubilizer to improve skin moisturizing and absorption.
• Cleansing & Washing Products: Added into facial cleanser, body wash, shampoo and hand sanitizer to relieve dry and tight skin after washing and optimize product mildness.
• Color Cosmetic Formulas: Applied in lipstick, lip gloss, foundation and cream cosmetics to moisturize and soften texture, improve ductility and prevent dry cracking.
• Sensitive Mild Skin Care: Suitable for zero-addition mild formulas, infant skin care products and postoperative soothing repair products with high safety requirements.
• Daily Chemical & Personal Care: Universal base material for body lotion, hand cream, shaving cream and oral care products, balancing moisturizing and formula stability.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Propylene Glycol | Compliant |
CAS No. | 57-55-6 | Compliant |
Appearance | Colorless Odorless Transparent Viscous Liquid | Compliant |
Purity | ≥99.9% | 99.95% |
Moisture Content | ≤0.1% | 0.03% |
Acid Value | ≤0.05mgKOH/g | 0.02mgKOH/g |
Refractive Index (25℃) | 1.431 - 1.433 | 1.432 |
Residue on Ignition | ≤0.01% | 0.005% |
Heavy Metal (Pb) | ≤10ppm | Qualified |
Heavy Metal (As) | ≤2ppm | Qualified |
Microorganism | Compliant with Cosmetic Grade Standard | Qualified |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of cosmetic grade Propylene Glycol? A1: The standard MOQ is 1KG, and sample orders are supported for quality testing.
• Q2: What export certification documents can be provided? A2: Complete COA, MSDS and full set of global customs clearance documents are available.
• Q3: What is the difference between Propylene Glycol and Glycerin? A3: Propylene glycol has better solubilizing and penetrating power, lighter skin feel and auxiliary antiseptic effect; glycerin has stronger pure moisturizing effect. The two are often compounded for better results.
• Q4: What is the recommended dosage in cosmetic formulas? A4: Conventional addition ratio is 2%-10% for skin care products, 1%-5% for cleansing products, adjustable according to formula needs.
• Q5: Is cosmetic grade Propylene Glycol safe for sensitive skin? A5: High-purity low-irritation formula, compliant with global cosmetic standards, mild and non-sensitizing, safe for long-term skin contact.
• Q6: Do you support stable large-batch supply all year round? A6: Sufficient factory capacity ensures continuous and stable bulk supply throughout the year.
Contact Us
💌 Contact us today for technical data, formulation guidance, and competitive pricing! E-mail:
You Might Also Like
1.ur Products A full range of high-quality cosmetic raw materials, including plant extracts, natural active ingredients, skin care actives and formulation additives. Stable supply & strict quality control.
