What it is
A silicone modified with phenyl groups, providing a higher refractive index and more shine.
What it does
Adds gloss to hair and skin products, used in hair serums and makeup.
Why it’s a concern
Low acute toxicity and low skin-irritation potential. Environmental persistence is the main concern for silicone polymers broadly. Some products may contain residual cyclic siloxane contaminants of more concern.
Also known as
phenylmethylpolysiloxane
CAS numbers
2116-84-9
Commonly found in
hair serumprimerfoundation
Safer alternatives
- argan oil
- camellia oil
- jojoba oil
Related chemical families
Sources
- CIR Silicone Safety Assessment