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Skin Journal
Evidence-led guides to the ingredients we formulate with. Written to be useful whether or not you buy anything from us: what each one does, what it doesn't, and how to use it.

Latest · lashes
Lash Serums Without Prostaglandins: Why It Matters
Most lash serums that visibly work contain a prostaglandin analogue. What that does, why it is worth avoiding, and what works instead.
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Lashes & brows
Growth cycles, prostaglandins, and what actually grows back.
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How to Grow Eyelashes: Castor Oil, Peptides and What Actually Works
Lashes cannot be made to grow faster. They can be stopped from breaking, and that is where the visible difference...
Why Your Lashes Get Thinner After 45
It is not your imagination and it is not the mascara. The lash cycle changes with age, and three ordinary...
How to Grow Eyebrows Back After Over-Plucking
Thirty years of plucking leaves a mark. Some of it grows back, some does not — and knowing which saves...
New guides, roughly twice a month
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