The ultimate skincare ingredient reference guide. Know exactly what every ingredient does, how to use it, and whether it's worth your money.
Decode INCI names, understand concentration order, and spot the difference between marketing claims and actual science.
Humectants, emollients, and occlusives explained — hyaluronic acid, glycerin, ceramides, squalane, shea butter, and more.
Every acid explained in full: glycolic, lactic, mandelic, salicylic, gluconolactone — concentrations, pH, and how to use them safely.
Retinol, retinal, tretinoin, adapalene, bakuchiol — every form ranked by strength, with exact instructions for starting and progressing.
L-ascorbic acid, ascorbyl glucoside, vitamin E, resveratrol, CoQ10, green tea — which forms actually work and why stability matters.
Salicylic acid, benzoyl peroxide, niacinamide, azelaic acid, zinc — the evidence behind each, and which to use for which type of breakout.
Tranexamic acid, kojic acid, alpha arbutin, licorice root, glutathione — how hyperpigmentation works and what actually fades it.
Signal, carrier, and neurotransmitter peptides decoded — what's backed by science, what's backed by marketing, and what's worth the price tag.
Fragrance, parabens, drying alcohols, essential oils, and silicones — the evidence-based case for what to skip and what the debate really is.
How to combine actives, what clashes, morning vs evening layering, and how to build a high-performance routine from scratch.
Understand what every ingredient does at a molecular level
Spot underdosed actives and overhyped formulas instantly
Know exactly what to layer, what to separate, and why
A guide you'll return to every time you buy a new product
The most comprehensive ingredient guide available. Download instantly and become your own skincare expert.
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