What is Magnesium Aluminum Silicate?
Chemically, Magnesium Aluminum Silicate is a mineral-based ingredient. A clay-based thickener and texturiser rated 0/5.
Where Magnesium Aluminum Silicate shows up
Magnesium Aluminum Silicate is commonly formulated into sunscreens, mineral makeup, and masks. Separately from clogging, its irritancy is rated 0/5 — low, so it's unlikely to sting or sensitise on its own.
Is Magnesium Aluminum Silicate bad for acne-prone skin?
That low score makes Magnesium Aluminum Silicate a reasonable choice even for acne-prone skin. As always, individual reactions vary, but it is not a likely cause of clogged pores.