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Methylpropanediol

What Methylpropanediol is & what it does

A humectant and solvent that hydrates and enhances the penetration of other actives, helping them work more effectively. It gives a light, smooth feel.

What is Methylpropanediol and what does it do in sunscreen?

Methylpropanediol is a humectant and solvent. As a humectant it draws in water to help hydrate the skin and gives a light, smooth feel. As a solvent it dissolves other ingredients and can help them spread and absorb more evenly. In a sunscreen it improves texture and keeps the formula light rather than greasy.

Is Methylpropanediol safe?

Yes, for most people. It is a small glycol-type ingredient used widely in cosmetics with a good tolerability record. It is generally non-irritating, and it is sometimes chosen as a gentler alternative to harsher solvents. Very sensitive skin can occasionally react to glycols, but for most users it is well tolerated.

Does Methylpropanediol clog pores?

No. Methylpropanediol is a lightweight, water-loving ingredient, not an oil or wax, so it is considered non-comedogenic. If anything it helps keep a formula feeling light. Breakouts from a sunscreen are far more likely to trace back to the richer emollients in it.

Is Methylpropanediol a preservative?

Not exactly. Methylpropanediol is mainly a humectant and solvent, though glycols like it can give a mild boost to a formula's overall preservation by making the water phase less hospitable to microbes. It is not relied on as the main preservative. Its primary jobs are hydration, texture, and dissolving other ingredients.

What is Methylpropanediol on an ingredient list (INCI)?

"Methylpropanediol" is the INCI name printed on the label. It is a small diol, a glycol-type molecule, and you will often see it positioned with the humectants and solvents in a formula. It can also act as a carrier that helps other actives absorb. Seeing it usually signals a lighter, more hydrating texture.

Sunscreens with Methylpropanediol

We rate 353 sunscreens that contain it, showing the top 10 by overall score:

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