Dimethicone

OKemollient

A silicone that forms a protective barrier, smooths skin, and provides a silky feel.

What does Dimethicone do for skin?

Dimethicone functions primarily as an occlusive agent and film-former on the skin surface. It creates a breathable, hydrophobic barrier that reduces transepidermal water loss (TEWL) by physically trapping moisture within the stratum corneum, thereby enhancing skin hydration and softness. This barrier also provides a protective layer against environmental irritants and imparts a smooth, silky feel to the skin by filling in fine lines and wrinkles and improving tactile properties.

Typical concentration: 1-30% (most cosmetic formulations use 1-15% for emollient and feel modification; for OTC skin protectant claims, 1-30% is typical).

Is Dimethicone safe?

Dimethicone is widely considered safe for cosmetic use. The Cosmetic Ingredient Review (CIR) Expert Panel has assessed dimethicone as safe. It is an FDA-approved OTC skin protectant at concentrations of 1-30%. It is generally non-irritating, non-sensitizing, and non-comedogenic.

What does the research say about Dimethicone?

Regulatory Info

Status: Approved
Restrictions: Dimethicone
All Ingredients

Frequently Asked Questions

What does Dimethicone do in skincare?+

A silicone that forms a protective barrier, smooths skin, and provides a silky feel. Dimethicone functions primarily as an occlusive agent and film-former on the skin surface. It creates a breathable, hydrophobic barrier that reduces transepidermal water loss (TEWL) by physically trapping moisture within the stratum corneum, thereby enhancing skin hydration and softness. This barrier also provides a protective layer against environmental irritants and imparts a smooth, silky feel to the skin by filling in fine lines and wrinkles and improving tactile properties.

Is Dimethicone safe for sensitive skin?+

Dimethicone is widely considered safe for cosmetic use. The Cosmetic Ingredient Review (CIR) Expert Panel has assessed dimethicone as safe. It is an FDA-approved OTC skin protectant at concentrations of 1-30%. It is generally non-irritating, non-sensitizing, and non-comedogenic.

What percentage of Dimethicone should I look for?+

Look for products with 1-30% (most cosmetic formulations use 1-15% for emollient and feel modification; for OTC skin protectant claims, 1-30% is typical). for clinical efficacy.

Further Reading