Name: Propanediol
Brand: Alchemme
Price: 22.0 AUD
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Propanediol is a versatile ingredient that has gained popularity in the cosmetic industry for its multifunctional properties. This clear, colourless liquid is a type of glycol that serves various roles in cosmetic formulations.

One of its primary functions is as a humectant, helping to attract and retain moisture in the skin. This moisturising property makes propanediol particularly valuable in skincare products such as creams, lotions, and serums, where it contributes to enhancing skin hydration and maintaining a smooth, supple texture.

In addition to its moisturising capabilities, propanediol is also employed as a solvent and carrier for other active ingredients in cosmetic formulations. Its ability to dissolve a wide range of substances makes it an ideal medium for delivering both water-soluble and oil-soluble ingredients. This enhances the overall efficacy of cosmetic products by facilitating the even distribution of key components.

Propanediol is often used as a safer and more environmentally friendly alternative to traditional glycols, as it is derived from renewable resources and has a lower environmental impact.

Moisturising: Propanediol acts as a humectant, drawing moisture into the skin and helping to maintain hydration.

Skin Softening: It leaves the skin feeling smooth and soft without being greasy or sticky.

Solvent: Propanediol helps dissolve other ingredients, improving the overall consistency of cosmetic formulations.

Non-Irritating: It is considered a mild, non-irritating ingredient, making it suitable for sensitive skin types.

Boosts Penetration: It enhances the skin’s absorption of active ingredients, increasing their effectiveness.

Preservative Booster: Propanediol can enhance the efficacy of preservatives, reducing the need for synthetic preservatives in formulations.

Natural Alternative: Derived from corn, it is seen as a more eco-friendly and natural alternative to petroleum-based glycols, such as propylene glycol.

Check Compatibility with Other Ingredients: Propanediol is compatible with a wide range of ingredients, but it’s important to test it with actives, emulsifiers, and preservatives to avoid any stability issues in your formulation.

Use as a Solvent for Active Ingredients: Propanediol can be used to dissolve water-soluble ingredients such as hyaluronic acid, niacinamide, and other active ingredients. It improves their effectiveness and ensures they are evenly distributed in the formula.

Adjust pH as Needed: While propanediol is generally pH-neutral, some formulations may require adjusting the pH, especially when combined with other ingredients that affect the final product’s pH balance.

Optimise Concentration Levels: Typical usage levels range from 1% to 10% in formulations. Use lower concentrations for light hydration and higher concentrations for enhanced solubility and moisture retention.

Experiment with Texture and Feel: Propanediol improves the texture of a product, creating a smoother, silkier feel. Adjust its concentration to balance texture, as higher levels can affect the product’s viscosity.

Combine with Other Humectants: To boost hydration, combine propanediol with other humectants like glycerin, sodium PCA, or hyaluronic acid. This will enhance the product’s ability to draw moisture into the skin.

Incorporate into Water Phase: In most formulations, propanediol is added during the water phase, where it can help solubilise other water-based ingredients. However, always follow the formulation process based on specific ingredient needs.

CAS 504-63-2

INCI Propanediol 1,3

Composition Propanediol 1,3

Purity Grade No purity grade applicable

Appearance Clear liquid, mild odor

Solubility Water-soluble

Preservation Preservative-free

Storage Store in a closed container at a dry place at room temperature

Country of Origin USA

Raw Material Source Corn sugar

Manufacture Fermentation of corn sugar

Animal Testing Not animal tested