Glycerin

Glycerol

humectantCAS: 56-81-5

One of the most effective and well-studied humectants. Draws moisture to skin. Found naturally in skin. Safe for all types.

Safety Ratings

Safety5/5

Comedogenic0/5

Irritancy0/5

EWG Score1/10

Skin Type Compatibility

oily

5/5

dry

5/5

sensitive

5/5

combination

5/5

normal

5/5

Addresses Concerns

dehydrationdryness

Functions

humectantmoisturizingsolventskin conditioning

Known Interactions

synergy

Hyaluronic Acid

Both are powerful humectants that attract water to the skin, but they work at different layers. Hyaluronic acid binds water in the upper epidermis, while glycerin draws moisture from the dermis and environment. Together they provide multi-level hydration.

synergy

Ceramide NP

Glycerin attracts water as a humectant while ceramide NP seals the barrier as an occlusive lipid. This combination mirrors the skin's natural moisturizing strategy and is a cornerstone of dermatologist-recommended hydration.