Ingredient Guide
Propanediol
Also known as: Propanediol, 1,3-Propanediol, Corn-Derived Propanediol
All skin types
What It Is
A plant-derived (often from corn) solvent and humectant used as a glycerin alternative in many modern skincare formulas.
What It Does
Attracts moisture to the skin (humectant), improves the slip and spreadability of formulas, and helps dissolve other ingredients.
Best For
Lightweight hydrationFormula feel improvement
Benefits
- Lighter feel than glycerin — less tacky
- Humectant — draws moisture to the skin
- Helps improve the absorption and feel of water-based formulas
- Well tolerated, non-irritating
When to Be Careful
- No notable downsides at standard cosmetic concentrations
Commonly Found In
SerumsTonersLightweight moisturizers
Products Containing Propanediol
Niacinamide 5% Face and Body Emulsion
The Ordinary
Lactic Acid 10% + HA
The Ordinary
Alpha Arbutin 2% + HA
The Ordinary
PHA 5% Exfoliating Lip Serum
The Ordinary
Argireline Solution 10%
The Ordinary
Sulfur 10% Powder-to-Cream Concentrate
The Ordinary
Matrixyl 10% + HA
The Ordinary
Multi-Peptide Eye Serum
The Ordinary
GF 15% Solution
The Ordinary
Salicylic Acid 0.5% Body Serum
The Ordinary
Ascorbyl Glucoside Solution 12%
The Ordinary
Mandelic Acid 10% + HA
The Ordinary
Aloe 2% + NAG 2% Solution
The Ordinary
Natural Moisturizing Factors + HA Scalp Serum
The Ordinary
Balancing & Clarifying Serum
The Ordinary
FAQs About Propanediol
Is propanediol the same as propylene glycol?
They are related but different. Propanediol (1,3-propanediol) is plant-derived and has a lighter feel. Propylene glycol (1,2-propanediol) is typically petroleum-derived and has a longer track record in cosmetics. Both are humectants and solvents.