What is carbomer and is it safe?
Arin Editorial · how this is made
You saw 'Carbomer' on a cosmetic product label. A code like 910 or 940 might follow it. What is this ingredient, and is it safe? We explain here.
A polymer, a long-chain molecule
Carbomer is a polymer. Polymers are long chains formed by small repeating units. The length of these chains (molecular weight) influences how the substance behaves. It is an ingredient used in cosmetic formulations.
What do the numbers indicate?
The numbers next to the name (910, 934, 940, 941, 934P) indicate the molecular weight and the components of the polymer. They are not concentrations; they identify which version of the polymer is used. By listing this code, the manufacturer specifies the exact structure.
Safety review
Carbomer has been reviewed by CIR, an independent scientific panel. In 2003, the panel reaffirmed its previous conclusion that Carbomer is safe as used. This verdict covers its current conditions of use in cosmetics.
What 'as used' means
The phrase 'as used' is important. It means the evaluation is based on the ingredient inside a finished product and realistic human exposure, not on isolated high-dose tests. Factors like concentration, application area, and contact time are taken into account. So the safety conclusion applies to everyday products.
The Cosmetic Ingredient Review Expert Panel reaffirmed Carbomer as safe in 2003.
If you see carbomer on a label, there is no reason to worry. It is a polymer that an independent panel has found safe. The codes indicate structural differences, not a warning or ban. According to current scientific reviews, there is nothing to be concerned about.