Hago Wiki > Propylene Glycol
Propylene Glycol
The Active Booster & Moisture Pro
What is Propylene Glycol? Behind this name lies a true all-rounder. Propylene glycol is a polyhydric alcohol that exists as a colorless, almost odorless liquid. In the world of cosmetics, it is often misunderstood, yet it is one of the safest and most effective helpers to make skincare better. Its main task: It ensures that moisture stays in the skin and that active ingredients get where they need to go.
🚀 Penetration Enhancer
An active ingredient is useless if it just sits on the skin's surface. Propylene Glycol is a so-called "enhancer".
- Gatekeeper: It temporarily interacts with the lipids of the skin barrier, making it more permeable for valuable active ingredients like vitamins or peptides.
- Deep Action: This allows creams and serums to unfold their effect not only superficially but also in deeper skin layers.
- Solvent: It helps to dissolve difficult ingredients (like plant extracts) stably in water.
💧 Moisture (Humectant)
Similar to glycerin, propylene glycol is hygroscopic – it attracts water like a magnet.
Why your skin likes it:
- Binds moisture from the environment and locks it into the skin.
- Prevents creams from drying out in the jar, so the texture remains smooth until the last bit.
- Does not leave a sticky feeling but absorbs quickly and lightly.
⚠ What you should watch out for
Safety & Myths: Propylene Glycol is often unjustly criticized ("antifreeze myth"). However, in cosmetics, high-purity quality is used, which is considered safe and well-tolerated. Very sensitive skin types may react with irritation to extremely high concentrations (which are rare in normal skincare). Generally, it is much less sticky than glycerin and therefore very popular in light lotions.