Is stearic acid bad for my skin?

Stearic acid is a common ingredient in creams and foundations with no safety concerns documented in published reviews. It's a fatty acid that comes from plants or animals and helps thicken products. The evidence doesn't support concerns that it causes problems for most skin types.

Does stearic acid clog pores?

Stearic acid is rated non-comedogenic in standard testing, meaning it doesn't typically block pores. However, individual responses to any ingredient vary, and the texture of a full product matters more than one ingredient alone.

emulsifier · thickener

Stearic Acid

Generally safe·Strong evidence

A naturally occurring fatty acid (also made in the body and found in many foods) used to thicken lotions and help stabilize cleansing bars. It is one of the most well-studied emollient ingredients and is not a meaningful irritant at cosmetic use levels.

Questions

Is stearic acid bad for my skin?: Stearic acid is a common ingredient in creams and foundations with no safety concerns documented in published reviews. It's a fatty acid that comes from plants or animals and helps thicken products. The evidence doesn't support concerns that it causes problems for most skin types.
Does stearic acid clog pores?: Stearic acid is rated non-comedogenic in standard testing, meaning it doesn't typically block pores. However, individual responses to any ingredient vary, and the texture of a full product matters more than one ingredient alone.

Products with Stearic Acid

References

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.