Propanediol 1,3

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1,3 Propanediol is a green preservative-boosting humectant with excellent sensory characteristics. It is used as an emollient, skin penetration enhancer and solvent with good moisturizing properties.

Classified:  Solvent & Viscosity controller

Our customers substitute glycerin for Propanediol for increased hydration when used in hair and body products,  When combined with glycerin, Propanediol shows a synergistic effect that reduces the tackiness of glycerin, while offering the benefits of increased levels of hydration.

Propanediol increases hydration when used in hair and body products, and at 5%, performs better than propylene glycol and butylene glycol. When combined with glycerin, Propanediol shows a synergistic effect that reduces the tackiness of glycerin, while offering the benefits of increased levels of hydration. At levels up to 75%, it shows low potential to irritate or sensitize skin.

In surfactant systems, Propanediol increases the clarity of surfactant systems and viscosity while decreasing the amount of salt necessary to thicken a product. It improves flash foam, and produces more elegant systems with creamier lather and denser foam.

As a natural alternative green product with little to no scent, it derived from corn sugar, used as a humectant, hair and skin conditioner, preservative booster, and solvent with a light, non-sticky, slightly dry skin feel.

In hair care products, such as shampoo, conditioner, leave on conditioners, or styling aids, it offers a cleaner feeling after rinsing while increasing moisturization, improving detangling, reducing static, and improving wet and dry combing.

In all products, it decreases the freezing point and increases stability in freeze/thaw and heated tests.  

Propanediol may boost the efficacy of preservatives. Its efficacy was demonstrated when combined with preservatives containing phenoxyethanol against yeast, gram-positive, and gram-negative organisms, as well as mold.

Propanediol is an excellent solvent for harder to dissolve ingredients like salicylic acid, ferulic acid, allantoin, and ascorbic acid. 

Usage Rate:  1-10%, added to the water phase.

Key Benefits

  • Light, non-sticky skin feel
  • Green substitute for propylene glycol from a renewable resource
  • Viscosity enhancer
  • Clarity enhancer for surfactant systems
  • Increased freeze/thaw and heat stability
  • Low potential to irritate or sensitize skin
  • Good solvent for hard to dissolve ingredients as well as botanical extract
  • Boosts efficacy of preservatives
  • Hygroscopic, hydrates skin and hair well
  • Kosher, halal, USP-NF

INCI: Propanediol

Download Safety Data Sheet


    Customer Reviews

    Based on 4 reviews
    Great Product!

    I had a formulation I was working on that was unstable when this arrived. The Propanediol 1,3 saved my formula. Thank You Soap & More!

    Excellent alternative to glycerine.

    This is such a nice ingredient for skincare formulations as it's a very good non-sticky humectant that is accepted in natural formulations. So if your formulation calls for 5% glycerine, it's nice to add 4% propanediol and just 1% glycerine for a beautiful synergy. This ingredient also works as a penetration enhancer, which is nice when you're using extracts that are small enough mesh size to go a bit deeper into the skin.

    Christine Langley

    Propanediol 1,3

    Just what I was looking for

    Amazing alternative to Propylene Glycol, a petroleum based alternative. It's terrific that Propanediol is derived from corn and has a host of beneficial properties for skin care.