Cellulose gum (also called carboxymethyl cellulose or CMC) is a natural thickener derived from plant cellulose. In skincare products, it creates a smooth texture, helps formulas spread evenly, and can form a light protective film on the skin's surface.
Benefits
Improves product texture and spreadability
Provides light film-forming properties for a polished feel
Generally well-tolerated by most skin types
Natural origin and biodegradable
Potential concerns
May occasionally cause irritation in very sensitive skin
Can feel sticky or heavy at high concentrations
Science: Cellulose gum is recognized as a safe, biocompatible polysaccharide widely used across food, cosmetic, and pharmaceutical industries. No significant safety concerns were identified in the available literature for cosmetic applications.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate is a synthetic antioxidant used to prevent oils and fats in skincare formulas from oxidizing and going rancid. It helps extend product shelf life and maintain stability, particularly in products containing oils or vitamin E.
Benefits
Prevents product degradation and rancidity
Helps stabilize oils and fat-soluble actives like vitamin E
Extends shelf life without refrigeration
Potential concerns
Very rare allergic contact dermatitis reported in sensitive individuals
May cause irritation in those with known sensitivities to phenolic antioxidants
Science: Limited peer-reviewed data available specifically for this ingredient. It is chemically related to established food-grade antioxidants and has a strong safety history in cosmetic use, though isolated cases of contact sensitization have been documented in vulnerable populations.
