Studio Fix Fluid Foundation SPF 15

Nearly identical silicone base (dimethicone, trimethylsiloxysilicate, PEG-10 dimethicone, isododecane) gives a very similar skin-feel and finish, but Fenty has no SPF filter listed so you lose the sun protection claim entirely.

Shares the same core silicone film-formers (dimethicone, PEG-10 dimethicone, trimethylsiloxysilicate, isododecane, butylene glycol) so wear and texture should feel close, but it has zero UV filter versus MAC's Octinoxate 7.5%.

Overlaps on the main silicone actives (dimethicone, cyclopentasiloxane, trimethylsiloxysilicate, PEG-10 dimethicone) but adds skincare extras (hyaluronic acid, coconut water) that change the formula intent and still has no sunscreen filter.

Shares the silicone backbone (dimethicone, isododecane, cyclopentasiloxane, trimethylsiloxysilicate, PEG-10 dimethicone) but swaps in alcohol denat.

Has some silicone overlap (dimethicone, cyclopentasiloxane, trimethylsiloxysilicate) but the formula is built very differently with zinc oxide, parabens, silk, and multiple emulsifiers not in the MAC formula, and there's no stated SPF actives/percentage to match the Octinoxate 7.5%.