Why makeup creases, separates, pills, oxidises or goes patchy — the likely causes and what to try instead.
Concealer looks smooth going on and collects in fine lines an hour later. Here's what's actually happening — separating what the research supports from what's just convention.
July 28, 2026
It isn't oxidation — the pigments are already oxidised and have nowhere to go. What actually happens is that the film turns more see-through, so your own skin shows through it.
July 28, 2026
The only clinical study of pilling found it happens at the sunscreen step, not the makeup step — and that foundation usually fixes it. Almost everything else you've read about this has no evidence behind it.
July 28, 2026
The flash doesn't cause it. The white cast is there in ordinary light too — the flash just makes it obvious. And the usual advice, including avoiding 'nano' and dropping SPF, points the wrong way.
July 28, 2026