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Evidence-led explainers on what skincare ingredients actually do — what the research supports, what it does not, and where the claims run ahead of the data.
59 articles · no sponsorship · no affiliate links · no tracking
Rosehip oil has a reputation that outpaces its evidence — but not by as much as you might expect. Here's what the research actually supports, where the gaps are, and how to use it well.
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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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Caffeine is the star ingredient in most eye creams, promising to banish dark circles and puffiness overnight. The reality is more nuanced — it does something genuine, but not quite what the packaging suggests.
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The skincare industry has built an entire product category around 'minimising' pores. Some of those claims are grounded in real biology — but the idea that pores open, close, or disappear is one of skincare's most persistent myths.
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Kojic acid is one of the more effective over-the-counter options for fading dark marks — but its instability problems and irritation potential are real, and the gap between its reputation and its evidence base is worth understanding.
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Alpha arbutin is one of the gentler options for fading dark marks and evening out skin tone — but gentler also means slower, and the evidence has limits worth knowing about.
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Double cleansing has become a non-negotiable step in some routines — but the science behind it is simpler than the discourse suggests, and not everyone needs it.
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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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New active making you break out? It might be purging — or it might be a reaction. The difference matters, because one means the product is working and the other means it needs to go.
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Polynucleotides are the injectable everyone suddenly wants — and the ingredient serum brands are rushing to bottle. The two are not the same thing, and only one of them has much evidence behind it.
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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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"Clinical strength" and "clinically proven" aren't regulated terms in skincare — they can mean anything from a rigorous trial to ten people asked if they liked the product. Here's how to actually evaluate the evidence.
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'Sensitive skin' isn't one condition — it can be irritant reaction, allergy, nerve sensitivity or a damaged barrier amplifying everything at once. Working out which is the first step to finding what you can actually tolerate.
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