Ingredient
PEG-150 Pentaerythrityl Tetrastearate
What is PEG-150 Pentaerythrityl Tetrastearate?
PEG-150 Pentaerythrityl Tetrastearate is a synthetic compound produced by the esterification of pentaerythritol with stearic acid and ethylene oxide. It is commonly used in cosmetics and personal care products.
This ingredient acts as an emulsifier and thickener, helping to stabilize and improve the texture of products. The health evidence regarding PEG-150 Pentaerythrityl Tetrastearate suggests it's generally considered safe for topical use, though there are concerns about its potential for skin irritation and the presence of residual ethylene oxide, a known carcinogen.
When listed on a label, it indicates the product contains ingredients designed to improve texture and stability, but consumers with sensitive skin might want to approach with caution.
Commonly found in: Skin Care, Hair Care, Body Care, Feminine Care
What to watch
- May cause skin irritation, particularly in sensitive individuals.
- Concerns exist regarding residual ethylene oxide, which is a potential carcinogen.
The FDA allows its use in cosmetics, but it is not specifically reviewed or approved as part of the drug approval process.
Most studies suggest it's safe for use in cosmetics, but potential skin irritation and residual ethylene oxide raise concerns.
Synthetic and not derived from animals, generally considered vegan-friendly.
Sources: Final Report on the Safety Assessment of PEG-6, -8, -32, -75, -150, and -20 Sorbitan Beeswax
Scout's take
PEG-150 Pentaerythrityl Tetrastearate is an emulsifying agent that helps to stabilize formulations. It is used to improve the texture and consistency of products. It is generally considered safe in cosmetics.
The case against
There is a potential risk of contamination with ethylene oxide or 1,4-dioxane during manufacturing.
from the analysis of Sukin 455431 Botanical Body Wash Lime CoconutThe case for
It helps to stabilize and thicken formulations, improving product texture.
from the analysis of Sukin 455431 Botanical Body Wash Lime CoconutMore from Scout's analyses
PEG-derived viscosity modifier. As with all polyethylene glycols, manufacturing can leave 1,4-dioxane (EPA probable human carcinogen) as a residual contaminant unless vacuum-stripped.
from the analysis of CeraVe Foaming Facial CleanserPolyethylene glycol-based emulsifier; carries 1,4-dioxane contamination risk from ethoxylation. Penetration enhancer.
from the analysis of eos Shea Better Cashmere Body Wash Vanilla CashmerePEG-class emulsifier. Possible 1,4-dioxane contamination depending on purification.
from the analysis of Summer's Eve Sheer Floral Cleansing WashFound in 5 products
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