Ingredient · Updated
Trihydroxystearin
Found in 2 products
What is Trihydroxystearin?
Trihydroxystearin is a fatty acid derivative often used as a gelling agent and thickener in various products. It is synthesized from castor oil through a reaction that introduces hydroxyl groups to the stearic acid backbone.
It is used primarily in cosmetics and personal care products to provide a stable, creamy texture and improve product spreadability. There is limited research on the health effects of trihydroxystearin, but it is generally considered safe for use in cosmetics and topical applications.
When you see trihydroxystearin on a label, it indicates the product may have improved viscosity or thickness, contributing to its overall texture and user experience.
Commonly found in: lipsticks, foundations, creams, lotions
Benefits
- Enhances texture and spreadability in cosmetic products.
Trihydroxystearin is not specifically regulated by the FDA but is generally considered safe for cosmetic use. It does not require pre-market approval.
There is limited peer-reviewed research on trihydroxystearin, but it is generally regarded as safe in the concentrations used in cosmetics.
Trihydroxystearin is typically derived from plant-based sources like castor oil, making it compatible with vegan products.
Sources: Cosmetic Ingredient Review: Safety Assessment of Hydroxy Stearic Acid
Scout's take
Trihydroxystearin is used as a thickening agent in cosmetic formulations. It helps to improve the texture and stability of the product. It is generally considered safe for use.
The case against
There is a low risk of skin irritation, but it is generally well-tolerated.
from the analysis of Monika Blunder Beauty Botanical Balm Hyaluronic Lip TintThe case for
Improves texture and stability of the product.
from the analysis of Monika Blunder Beauty Botanical Balm Hyaluronic Lip TintMore from Scout's analyses
Fatty-acid emollient / emulsifier — conditions skin, low concern.
from the analysis of W3LL People Bio Correct ConcealerAll 2 products with Trihydroxystearin
Where Trihydroxystearin shows up
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