Carbomer Interpolymer Type A is a crosslinked acrylic acid interpolymer grade designed for modern cosmetic systems. It's used to efficiently thicken, stabilize emulsions, and improve suspension while providing desirable flow and spreading characteristics.
A modern thickener giving formulas a silky, controlled glide.
Category
Emulsifying
Type
Rheology Modifier
Ratings
Overall Rating
Great
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Carbomer Interpolymer Type A a Good Ingredient?
The interpolymer network provides efficient thickening and suspension with smooth flow control, stays stable across typical cosmetic conditions, and is generally gentle when correctly neutralized, which is what earns it a Great rating; broad industry use and compatibility with many actives support its reliability.
What it does
Skin Benefits
Delivers silky flow and controlled glide for easier, more even application, and helps maintain a polished, consistent appearance in the finished product.
Where you'll find it
Uses in Skincare & Cosmetics
Common in lightweight lotions, sunscreens, and styling gels to fine-tune thickness and preserve even dispersion of pigments or UV filters.
Before you use it
Safety
Considered safe for cosmetic use with a low likelihood of sensitization; minor irritation can occur, especially near the eyes or in unneutralized acidic systems. After proper dispersion and neutralization, it is typically well tolerated.