The Skin Formulary
Ingredient guides, routine advice, and the science behind skincare — written for curious, discerning readers.
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From plumping serums to weightless gels, hyaluronic acid is everywhere. But what does molecular weight actually mean for your skin — and how much do you actually need?
Recent articles
L-ascorbic acid vs. ascorbyl glucoside vs. sodium ascorbyl phosphate — the Vitamin C family is vast and confusing. Here's how to decode the labels.
Pore-minimising, oil-controlling, barrier-repairing, brightening — niacinamide is one ingredient that genuinely does it all. But is 10% always better than 5%?
Tretinoin, retinaldehyde, retinol, retinyl palmitate — the vitamin A spectrum is vast. Understanding the conversion chain changes how you shop for anti-ageing.
Mixing actives is where routines go wrong. A simple pH and function framework cuts through the confusion — and actually works.
If your skin is persistently dry, reactive, or sensitised, ceramides might be the one ingredient class you are systematically overlooking.