Methylproanediol
Methylproanediol
MET
9/10
Concern level
High concern
A small-molecule, low-viscosity diol used in cosmetics mainly as a solvent, humectant, and penetration-enhancing carrier. It improves product slip, helps dissolve actives, and can boost formula sensoriality without the tackiness of glycerin.
Pore-clogging
Non-comedogenic
Pregnancy
Safe
Regulatory
No data
Benefits
MoisturizingSupports Barrier Function
Chemical Properties
Molecular Weight
90.12 g/molTypical Concentration
1.00% - 10.00%CAS Number: 2163-42-0
Skin Type Compatibility
dry skin7/10
oily skin7/10
sensitive skin6/10
acne prone7/10
mature skin7/10
normal skin8/10
Interactions
incompatible with: May increase penetration of other actives, so use caution when combining with strong exfoliating acids or retinoids in sensitive-skin formulas, Can amplify sting when paired with high-level alcohol or low-pH actives
Risks & Warnings
Usually well tolerated, but at high levels it can cause mild stinging or dryness in very sensitive or compromised skin. As with most solvents/humectants, irritation risk increases when combined with other strong actives in leave-on products.
Vegan Cruelty-Free
