Glycerin
Also known as: Glycerol
INCI: Glycerin | Function: Humectant | Type: Sugar alcohol
What Is Glycerin?
Glycerin is the most used humectant in skincare. It naturally occurs in skin's NMF and draws moisture from the air into the stratum corneum.
Key Skin Benefits
- + Attracts moisture
- + Strengthens barrier
- + Improves elasticity
Pros
- + Universally safe
- + Compatible with all
- + Effective at 2-5%
Cons
- − Sticky at 20%+
- − Needs occlusive in dry climate
Specifications
| Property | Value |
|---|
| Usage Areas | Face, Eye, Body, Hair |
| Product Type | Leave-On, Rinse-Off |
| Source | Plant-derived (vegetable glycerin) |
| Natural Level | Natural-derived |
Safety Ratings
| Metric | Rating |
|---|
| Skin Sensitivity | 1/5 |
| Comedogenic Rating | 0/5 |
| EWG Score | 1/10 |
Typical Usage % by Product Type
| Product Type | Typical % |
|---|
| Moisturizer | 2 - 20% |
References
- CIR (2021) — Glycerin. PMID: 33655794