Why your sunscreen pills under foundation: the silicone problem
Sunscreen pilling is a polymer-film failure. Here's the silicone chemistry behind it, and the three changes that actually fix it for good.
May 8, 2026 · Maya Chen
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Sunscreen pilling is a polymer-film failure. Here's the silicone chemistry behind it, and the three changes that actually fix it for good.
May 8, 2026 · Maya Chen
The rule against layering niacinamide with vitamin C traces to old tube-test chemistry. Here is what actually deactivates ascorbic acid, and what does not.
May 7, 2026 · Maya Chen
Peptides are sold as 'Botox in a bottle', but the evidence base is thinner than for retinoids. Here is what each class actually does on real skin.
May 7, 2026 · Maya Chen