Wanhua Carfil 1,3BG: The High-Performance Moisturizing Solution Leading Clean Beauty

Amid the beauty industry’s green transformation, Wanhua Chemical introduces Carfil 1,3BG, a 100% bio-based 1,3-Butylene Glycol. Derived from fully renewable sources, this high-performing, multi-functional moisturizer is mild, exceptionally safe, and features a highly stable, clean odor profile. It is the ideal core ingredient for creating high-quality, eco-friendly formulations.
 

Basic Information

• Product Name: Carfil® 1,3BG
• INCI Name: Butylene Glycol (1,3-Butanediol)
• Appearance: Colorless, Odorless liquid
• Main Applications: Humectant, solvent, widely used in serums, cleansers, sunscreens, and various other cosmetic products

Natural Origin and Bio-based Characteristics Breakdown

• Natural Origin Index (NOI): According to ISO 16128 standards, Carfil 1,3BG has a natural origin index of 1
• 100% Bio-based: Carfil 1,3BG is a 100% bio-based humectant sourced from (such as cassava)
• Carbon Footprint: The full life-cycle carbon footprint of bio-based butylene glycol helps reduce CO₂ emissions, aligning with sustainable development principles
• Bio-based Carbon Content Certification: Tested according to ASTM D6866-22 Method B (AMS) TOC, results show 100% bio-based carbon content

1. 100% Natural Bio-based & Zero Food Competition: Carfil 1,3BG is crafted exclusively from non-GMO, non-staple materials like agricultural residues, ensuring zero impact on the global food supply. Manufactured using over 50% clean energy, it significantly reduces carbon emissions, helping brands achieve true green sustainability.
 

2. Patented "Clean Odor" Technology: Overcoming the odor challenges typical of bio-based materials, Wanhua’s patented multi-distillation technology effectively removes odor-causing impurities. Delivering a purity of >99.5%, it maintains excellent odor stability even after thermal storage at temperatures up to 85°C, ensuring your formulation's fragrance remains pure and interference-free.
 

3. Clinically Proven Ultra-Low Irritation: Exceptionally safe for sensitive skin, a 30-person clinical patch test using a 100% concentration showed zero adverse reactions. Furthermore, BCOP (Bovine Corneal Opacity and Permeability) testing confirmed no eye irritation, proving its ultimate reliability as a gentle skincare ingredient.
 

4. Enhanced Preservative Efficacy & Outstanding Solubilization:
Carfil 1,3BG is a formulator's right-hand assistant. It features powerful solubilization effects , helping to dissolve active ingredients such as Ceramides (CER) , 377 , Vitamin E acetate, and essential oils. Furthermore, by adding just 5% of 1,3-BG, 1% of Phenoxyethanol/Caprylyl Glycol (a common preservative) can be completely dissolved in water. This not only boosts the preservative efficacy but also helps brands successfully reduce the overall usage of preservatives.

The figure below illustrates how Butylene Glycol promotes the dissolution of preservatives, enhancing formulation stability and preservative efficacy:

5. Premium Sensory Experience & Formulation Stability:
In terms of sensory performance, Carfil 1,3BG can effectively reduce surface tension , endowing skincare products with excellent spreadability and absorbency , and delivering a smooth, non-sticky, refreshing skin feel. Meanwhile, the addition of 1,3-BG significantly lowers the freezing point of water-based and emulsion systems, drastically improving the freeze-thaw performance of products under extreme temperatures.

6. Endorsed by Global Authoritative Green Certifications:
To meet the strict regulatory requirements of the global market, Carfil 1,3BG has obtained numerous authoritative international certifications, including USDA 100% Biobased Certification , COSMOS Approved , REACH registration , as well as HALAL and KOSHER certifications. In addition, it is backed by multiple safety declarations such as non-animal testing, microplastic-free, and heavy metal-free, perfectly aligning with the highest standards of Clean Beauty.