Decylene glycol, 1 L

Decylene Glycol (1,2-Decanediol): Multi-Functional Humectant and Antimicrobial Booster

Introducing Decylene Glycol (INCI: Decylene Glycol), a premium multi-functional ingredient from Germany. This colorless, viscous liquid is a versatile glycol that serves as an antimicrobial booster, a superior humectant, and a texture enhancer. It is essential for formulators seeking to improve product longevity, enhance skin feel, and reduce the concentration of traditional preservatives without compromising safety. Decylene Glycol is safe for sensitive skin and widely compatible across cosmetic, pharmaceutical, and perfumery applications.

Product Description and Key Benefits

Decylene Glycol (also known as 1,2-Decanediol) is a medium-density glycol known for its soft, non-irritating nature. It is partially water-soluble and highly soluble in ethanol, glycols, oils, and emulsions, making it easy to incorporate into diverse formulations. It remains stable upon heating, ensuring consistent performance throughout the manufacturing process. Its unique combination of properties makes it a valuable asset in modern formulation.

Key properties and benefits:

• Mild Antimicrobial Effect: Provides gentle antimicrobial protection, which is crucial for hygiene products and sensitive formulas.

• Preservative Booster: Significantly boosts the efficacy of traditional preservatives, allowing for lower overall preservative load in the final product.

• Superior Hydration: Functions as a humectant, reducing transepidermal water loss (TEWL) and enhancing the skin's barrier function and elasticity.

• Sensory Enhancement: Imparts a silky texture to cosmetic products, greatly improving the sensory experience upon application.

• Irritation Reduction: Helps to mitigate irritation caused by harsh surfactants (SLES/SLS), making it ideal for mild cleansing products.

• Solubilizer and Fixative: Acts as a solubilizer for actives and fragrances, ensuring uniform distribution and extending the shelf life and persistence of aromatic compounds.

Applications and Usage Areas

Decylene Glycol’s multi-functional role makes it indispensable across four major product categories, delivering enhanced stability, feel, and performance.

1. Cosmetics (Face, Body, and Hair Care):

• Creams, Lotions, and Serums: Used to enhance moisturization, improve skin texture, and stabilize the formula against microbial growth.

• Shampoos, Shower Gels, and Cleansers: Reduces the irritating potential of surfactants and contributes to a smooth, conditioning feel.

• Deodorants and Antiseptics: Acts as a key antimicrobial agent in deodorant sticks, roll-ons, and personal antiseptic gels.

• Foot and Hand Cosmetics: Its antimicrobial and moisturizing benefits are highly effective in foot and hand creams targeting dryness and hygiene.

2. Pharmaceuticals and Dermatology:

• Antiseptic Ointments and Gels: Functions as an effective antiseptic and stabilizer, augmenting the action of other active substances in therapeutic and dermatological preparations.

• Post-Procedure Formulas: Used in creams and gels applied after invasive dermatological procedures (e.g., laser, peeling) for its gentle, anti-irritant properties.

3. Household Chemistry:

• Liquid Soaps and Disinfecting Sprays: Acts as an antiseptic and stabilizing agent in soft cleaning products and disinfecting sprays, improving microbial control and product longevity.

• Fabric Care and Air Fresheners: Used to stabilize and evenly distribute fragrances in home care products.

4. Perfumery:

• Fragrance Solvents and Fixatives: Employed as a superior solvent for aromas and a fragrance fixative, significantly prolonging the scent's durability and ensuring a sustained release of the composition.

Recommended Dosage:

• In General Cosmetics: 0.5–5%

• In Antiseptics/Deodorants: 1–4%

• In Creams and Gels: 0.5–3%

• In Shampoos and Hair Products: 0.5–2%

• In Pharmaceutical Formulas: 1–5%

• In Perfume Compositions: 0.5–1.5%

Recipe: Silky Daily Moisturizing Lotion with Antimicrobial Boost

Create a lightweight, highly moisturizing lotion with enhanced shelf stability and a luxurious silky feel, perfect for daily use.

Ingredients:

• 65 g Distilled Water (Water Phase)

• 15 g Carrier Oil (e.g., Safflower or Jojoba) (Oil Phase)

• 5 g Emulsifying Wax NF (Emulsifier)

• 3 g Decylene Glycol (Humectant/Antimicrobial)

• 2 g Vegetable Glycerin (Humectant)

• 0.5 g Preservative (e.g., Phenoxyethanol)

Instructions for Preparation:

Combine and Heat Phases: In separate heat-safe containers, combine the Water Phase (Distilled Water and Glycerin) and the Oil Phase (Carrier Oil, Emulsifying Wax, and Decylene Glycol). Heat both containers in a double boiler to 75°C until the emulsifying wax is completely melted.

Create the Emulsion: Slowly pour the heated Water Phase into the heated Oil Phase while continuously stirring with a stick blender. Blend for 1-2 minutes until a thick, uniform emulsion is formed.

Cool Down and Add Actives: Remove the container from heat and place it in a cold water bath. Continue stirring until the emulsion cools to below 40°C.

Add Final Preservative: Add the final preservative (if using a second one to pair with Decylene Glycol). Stir thoroughly.

Check pH: Verify the pH is within the stable range of 6.0–8.0. Adjust if necessary. The presence of Decylene Glycol not only improves the lotion’s texture, making it feel silky, but also significantly boosts the efficacy of the preservative system.

Packaging: Transfer the finished lotion into a clean, sterilized bottle or jar.

Recommendations:

• Sensory Improvement: The inclusion of Decylene Glycol at 3% dramatically improves the texture, providing a smooth, non-tacky finish.

• Stability: This component acts as a preservative booster, allowing you to use the minimum effective amount of your primary preservative.

• Application: Apply daily to clean skin. The lotion’s moisturizing properties are enhanced by the glycol, preventing water loss throughout the day.