Ingredient
Bismuth Oxychloride
Mineral (makeup pearl) · INCI: Bismuth Oxychloride
Reviewed by Elysiana, licensed esthetician
How we read it
Highly comedogenic
Known to clog pores. If you break out easily, this is the one to skip.
Is Bismuth Oxychloride comedogenic?
Yes. Bismuth Oxychloride is a known pore-clogging ingredient, and we read it as highly comedogenic. If you're acne-prone, it's worth avoiding, especially when it sits near the top of an ingredient list.
Why we read it this way
A pearlescent mineral common in mineral makeup. Acne-safe lists flag it and some people find it irritating, though comedogenicity evidence is mixed.
The nuance
If mineral makeup breaks you out, this is a common suspect — but reactions vary.
One ingredient rarely tells the whole story. Run the whole label and see everything in the product at once.