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Octanediol

What Octanediol is & what it does

A glycol with humectant and mild antimicrobial properties that supports the preservative system while conditioning skin. It gives a light, smooth feel.

What does Octanediol do in skincare?

Octanediol is a multifunctional diol used in skincare as a skin conditioning and moisturizing-support ingredient, and it can also help keep a formula fresh. It contributes to a smooth skin feel and is sometimes used to support overall product stability. Its exact role depends on the formula it is part of.

Is Octanediol safe?

Octanediol is commonly used in cosmetics and is generally considered safe at typical use levels. It is usually well tolerated, though, as with any ingredient, individual sensitivity can vary. A patch test is reasonable if your skin reacts easily.

Is Octanediol natural or synthetic?

Octanediol is typically a synthetic ingredient, manufactured as a diol compound for use in cosmetic formulas. Some related diols can be derived from plant-based feedstocks, but the cosmetic-grade material is produced for purity and consistency. Its synthetic origin helps ensure reliable performance.

Sunscreens with Octanediol

We rate 6 sunscreens that contain it:

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