Quick answer
Commonly used emollient, known for its gentleness and silky feel; Recognized as a skin protectant (in concentrations 1-30%) by the U.S. FDA; Popular in oil-free moisturizers, thanks to its hydration-enhancing, non-greasy finish; May also be used sunscreen formulation to help the actives distribute evenly on skin; Considered synthetic, even though it’s derived from natural silicon Key benefits: Hydration.
Dimethicone
Updated
Dimethicone
Purpose
An skin-softening silicone known for its permeable (think breathable) barrier that helps skin retain hydration. It has a uniquely silky, non-greasy feel.
Rating
BEST
Category
Silicone, Emollient
INCI Purpose
ANTIFOAMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING
Benefits
Risks
Alternative Names
Hair Profile
Functions
Helps With
Goals
Suitable For
Role
Non-volatile film-former
At a Glance
Commonly used emollient, known for its gentleness and silky feel
Recognized as a skin protectant (in concentrations 1-30%) by the U.S. FDA
Popular in oil-free moisturizers, thanks to its hydration-enhancing, non-greasy finish
May also be used sunscreen formulation to help the actives distribute evenly on skin
Considered synthetic, even though it’s derived from natural silicon
Article
Dimethicone is a type of silicone (technically known as a non-volatile/linear silicone). It is one of the most frequently used emollient (softening) ingredients in moisturizers, well known for its gentleness and effectiveness.
Dimethicone is recognized as a “skin protectant” by the U.S. FDA, when used in over-the-counter products in concentrations of 1-30%. It forms an air-permeable barrier that works to prevent moisture loss, so skin better retains hydration, while still allowing natural perspiration to evaporate. It imparts a wonderfully silky (but not greasy) feel, which makes it especially popular in oil-free moisturizers.
Dimethicone may also be used with other ingredients such as alumina to coat zinc oxide or titanium dioxide in sunscreen formulation to help the actives distribute evenly on skin, providing uniform protection.
Dimethicone is considered a synthetic ingredient, even though it’s derived from natural silicon. It has a long track record of being recognized as safe in cosmetic products.
See: Silicone
References