

Biossance 100% Squalane Oil vs The Ordinary 100% Plant-Derived Squalane
Shared: Squalane
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Same active ingredients, fraction of the price


Shared: Squalane


Shared: Niacinamide


Shared: Salicylic Acid


Shared: Retinol
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Expert insights on skincare ingredients and dupes
Paula's Choice 10% Azelaic Acid Booster and The Ordinary Azelaic Acid Suspension 10% share the same active ingredient: Azelaic Acid. The luxury version costs $39, while the dupe costs $14 — a saving of 64%.
IngredientsRetinol gets blamed for a lot of things that usually come down to bad timing, the wrong formula, or starting far too fast. If your skin has ever turned stingy, flaky or suddenly reactive after using vitamin A, the problem is rarely that retinol is “too strong” across the board. More often, it is the difference between a smart introduction and a barrier-damaging rush.
Buying GuidesYour hyaluronic acid serum should leave your skin looking comfortably hydrated, not strangely tight by 3 pm. If that post-skincare dryness keeps happening, the difference is usually the formula, not your skin.
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