Ingredient · Updated

Polyhydroxystearic Acid

Neutral in 13

Found in 13 productsSee all

What is Polyhydroxystearic Acid?

Polyhydroxystearic Acid is a synthetic fatty acid derived from castor oil. It is primarily used in formulations to stabilize emulsions by keeping oil and water mixtures homogenous.

This ingredient is used in cosmetic products for its ability to provide consistency and stability to creams and lotions. While its use in cosmetics is generally regarded as safe, there is limited research specifically addressing long-term health effects related to its exposure.

When you see Polyhydroxystearic Acid on a label, it's typically there to maintain a product's texture, ensuring that it remains smooth and consistent throughout its shelf life.

Commonly found in: body lotion, lip care, sunscreen, makeup

Benefits

  • Helps stabilize emulsions in cosmetic formulations.
  • Contributes to a smooth and consistent texture in topical products.
FDA

Polyhydroxystearic Acid is permitted in personal care products without specific restrictions.

Research

There is limited specific research on Polyhydroxystearic Acid, but its components are generally regarded as safe when used in typical concentrations.

Vegan

Derived from plant sources, it typically aligns with vegan product standards.

Sources: Cosmetic Ingredient Review on Polyhydroxystearic Acid

Scout's take

Standard formulation ingredient — neither beneficial nor harmful at typical use.

The case against

There are minimal risks associated with Polyhydroxystearic Acid, primarily related to potential sensitivity in rare cases.

from the analysis of Cocokind Daily Sunscreen - SPF 32

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 Tint

Generally considered safe with minimal risk of irritation.

from the analysis of babo BOTANICALS Baby Skin Mineral Sunscreen SPF 50 Sunscreen

The case for

It provides a smooth application and enhances the product's stability.

from the analysis of Saltair Multi-Lipid Replenishing Body Butter - Salt Water Vanilla

It aids in the stability and consistency of the product formulation.

from the analysis of Babo Botanicals Sheer Mineral Sunscreen Lotion SPF 50 Sunscreen

It helps to improve the texture and stability of the product.

from the analysis of Cocokind Daily Sunscreen - SPF 32

Contributes to a stable and consistent product formulation.

from the analysis of babo BOTANICALS Baby Skin Mineral Sunscreen SPF 50 Sunscreen

More from Scout's analyses

Polyhydroxystearic acid is used as an emulsifier and stabilizer in cosmetic formulations. It helps to maintain the consistency and texture of products. It is generally considered safe for use in cosmetics.

from the analysis of Monika Blunder Beauty Blunder Cover Foundation + Concealer

Polyhydroxystearic acid is used as a thickening agent in cosmetic formulations. It helps to improve the texture and spreadability of the product. It is generally considered safe for use in cosmetics.

from the analysis of Monika Blunder Beauty Botanical Balm Hyaluronic Lip Tint

Biodegradable mineral-dispersing polymer.

from the analysis of Pipette Mineral Sunscreen SPF 50

All 13 products with Polyhydroxystearic Acid

Where Polyhydroxystearic Acid shows up

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