The Clinical Hook The most common cause of a routine that stops working is not a bad ingredient. It is a good ingredient used at the wrong time, next to the wrong partner, on skin that has already had enough. Retinoids, vitamin C and exfoliating acids are the three most effective cosmetic categories in modern
What Not to Layer: Retinoids, Vitamin C and Acids in One Routine Read More »
The Clinical Hook Redness is the skin concern most often answered with the wrong question. The question is usually “which ingredient removes it?”, and the honest answer is that no cosmetic ingredient removes redness — what a well-chosen herbal serum for redness can do is help skin look calmer and more even over time, by
Herbal Serum for Redness: Botanicals, Barrier Support and Calmer-Looking Skin Read More »
The Clinical Hook Every serum shelf carries the same promise in the same two words — hyaluronic acid — and almost none of them tells you the one fact that decides what the product does. Hyaluronic acid molecular weight is that fact: the size of the molecule determines where it sits on and in the
Hyaluronic Acid, by Molecular Weight: Why One Name Covers Three Different Behaviours Read More »
The Clinical Hook Few ingredient names in skincare sound as scientific — or as alarming — as PDRN. It stands for polydeoxyribonucleotide, a fragment of DNA, and the first question most readers ask is the right one: what is DNA doing in a face cream, and should it be there at all? PDRN skincare is
PDRN and Polynucleotides: What DNA-Derived Cosmetic Ingredients Can and Cannot Claim Read More »
