What is Propanediol?

Propanediol is a clear, colorless liquid created through the fermentation of corn sugar. It is a 100% plant-based ingredient widely used in natural cosmetics because it attracts and helps retain moisture.

The substance is virtually odorless with a slight sweetness and dissolves easily in water-based formulas. In skincare products, propanediol makes the skin feel smoother and fresher. It is mild and usually non-irritating, suitable for dry, sensitive and blemish-prone skin.

Additionally, propanediol helps preservatives work better, keeping products clean and stable for longer. It also improves skin feel: products feel smooth and non-sticky, especially useful in formulas with lots of glycerin. Therefore, Propanediol is ideal for DIY creams, serums, toners, gels and for light leave-in hair products.

What are the benefits of Propanediol?

Deep hydration

As a powerful moisture magnet, Propanediol attracts moisture and helps retain moisture long-term, making fine lines less visible.

Gentle on the skin barrier

Due to its high purity (≥99.8%) and skin-friendly nature, Propanediol supports the natural skin barrier and reduces a tight feeling.

Preservation booster

Propanediol enhances the effectiveness of mild preservatives, keeping formulas fresh and stable for longer.

Silky smooth skin feel

It provides a soft finish without stickiness and makes formulations smoother and more pleasant to use.

Carrier and solvent

Helps distribute water-soluble active ingredients evenly and promotes uniform application on the skin.

Suitable for all skin types and hair

Non-comedogenic and mild, great for sensitive, dry and blemish-prone skin, and in hair products it tames frizz and provides light hydration.

Environmentally friendly and reliable

Fermented from renewable raw material, GMO-free and suitable for formula choices that value sustainability.

How do you use Propanediol?

General dosage: Use 1–10% in the water phase; in specific formulas like serums or hair products up to 20% can be applied.
Guidelines per product: 3–5% in creams and lotions, 2–4% in toners and mists, 5–10% in serums, gels and hair care.
Processing: Completely water-soluble and cold-mixable, add in the water phase or after dissolving other water-soluble ingredients. A combination of 2–3% glycerin with 2–4% propanediol provides good hydration without stickiness.
Preservation: Use 2–5% as a booster alongside the chosen mild preservation system to strengthen formula stability and safety.

What makes Propanediol so special?

Propanediol is the plant-based counterpart to traditional petroleum glycols, with a gentle skin feel. Fermented from renewable corn sugar, COSMOS/ECOCERT approved and virtually odorless.

This product is perfect for fragrance-free or mild formulas while offering practical benefits for preservation and workability.