Ingredient
Propanediol
What is Propanediol?
Propanediol is a colorless, viscous liquid typically derived from corn sugar through a fermentation process. It is used in a variety of applications, from industrial to personal care products.
In skincare and cosmetics, propanediol functions primarily as a solvent and humectant. It helps dissolve other ingredients and enhance the absorption of active ingredients into the skin. The health evidence generally supports its use as safe, with studies indicating a low likelihood of irritation or sensitization for most skin types.
When you see propanediol on a label, it is often an alternative to propylene glycol for those seeking natural-based products, as it is derived from renewable sources.
Commonly found in: Moisturizers, Face Serums, Foundations, Body Lotions, Hair Care Products
What to watch
- Skin irritation is rare but possible in sensitive individuals.
Benefits
- Acts as an effective humectant, helping to retain moisture in the skin.
Propanediol is recognized as safe for use in cosmetics without limitations.
Research supports propanediol's low irritation potential and efficacy as a humectant.
Propanediol is typically considered vegan as it is derived from plant sources.
Sources: Cosmetic Ingredient Review Assessment · Scientific Committee on Consumer Safety Opinion on 1,3-Propanediol
Scout's take
Corn-fermentation-derived humectant. Cleaner alternative to propylene glycol.
The case against
Propanediol can cause mild skin irritation in sensitive individuals.
from the analysis of Supergoop! Glowscreen Sunrise Hydrating Glowy Tinted Primer Sunscreen with Hyaluronic Acid + Niacinamide - SPF 40 · echoed in 1 other analysisThere are minimal risks, though it may cause irritation in sensitive skin.
from the analysis of Papatui Paraben-Free Men's Ageless Action Niacinamide and Hyaluronic Acid Face Exfoliating Scrub - UnscentedThe case for
It enhances the absorption of other ingredients and provides a smooth application.
from the analysis of Supergoop! Glowscreen Sunrise Hydrating Glowy Tinted Primer Sunscreen with Hyaluronic Acid + Niacinamide - SPF 40It enhances the absorption of other ingredients and provides hydration.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / )Propanediol helps moisturize the skin and improve product texture.
from the analysis of Papatui Paraben-Free Men's Ageless Action Niacinamide and Hyaluronic Acid Face Exfoliating Scrub - UnscentedMore from Scout's analyses
Corn-fermentation-derived humectant solvent; clean replacement for propylene glycol. EWG 1.
from the analysis of Method Men Sea + Surf Body WashPropanediol is a glycol used as a solvent and humectant in cosmetics. It helps to improve the texture and feel of the product. It is generally considered safe for use in skincare.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / )Propanediol acts as a solvent and humectant, improving product texture while being biodegradable. It is generally safe for use in skincare.
from the analysis of Blueprint Bryan Johnson SFC Facial SerumFound in 12 products
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