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Humectants, occlusives and the difference between skin that is dry and skin that is dehydrated.
8 articles
Glycerin appears in more skincare products than almost any other ingredient, yet it rarely gets its own moment. That's partly because it's cheap, unsexy, and difficult to build a marketing campaign around — but it's also one of the most reliably useful things you can put on your skin.
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Snail mucin has gone from niche K-beauty curiosity to mainstream bestseller. The ingredient list is genuinely interesting — but the gap between what's in the filtrate and what reaches your skin is wider than the product pages suggest.
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Hyaluronic acid is the skincare industry's favourite humectant — but the gap between what it does on a lab bench and what it does on your face is wider than the marketing suggests.
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"Dry skin" gets used as a catch-all for anything that doesn't feel moisturised enough, but dry and dehydrated are different problems with different fixes. Treating one as the other is a common reason routines stop working.
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"Triple ceramide," "bio-identical ceramides," "ceramide complex" — the marketing has run well ahead of most people's understanding of what these ingredients actually do. The underlying science is solid; the labels often aren't.
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Panthenol never trends, never headlines a product, and has genuinely good evidence behind it anyway — it just doesn't produce the kind of before-and-after that sells a serum.
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Squalane has become a skincare staple — a go-to oil for those who don't like oils, a moisturising ingredient that seems to work for everyone.
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Slugging isn't the miracle TikTok made it out to be, and it isn't the pore-clogging disaster its critics warn about either — it's ordinary occlusion, with genuine upsides for some skin and real downsides for others.
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