Propanediol sits in the humectant category, but the reason it works is specific. Plant-derived (corn); similar function to butylene glycol; humectant and solvent.
The scientific name is Propanediol. Plant-derived (corn); similar function to butylene glycol; humectant and solvent. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.
Typical working concentration is 1–10%. Best suited to all skin types skin. Primary applications: hydration, texture enhancer, boosts penetration.
Works well with: Most ingredients.
More sustainable alternative to propylene glycol; well-tolerated.