THE JOURNAL
Deep dives, not hot takes.
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Ingredients · 9 min read
Peptides vs. prostaglandins: the only comparison that matters
We break down the two ingredient families behind almost every lash serum on the market — how they work, how they differ, and which one is right for you.
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Guides7 min read
How to read a lash serum ingredient list
The five names that actually predict whether a serum works — and the filler you can ignore.
Safety6 min read
What the "iris darkening" warning really means
The rare prostaglandin side effect, explained calmly and without the scare headlines.
Testing5 min read
Inside our 12-week panel protocol
How we photograph, score and blind-review every serum in the ranking.
Budget8 min read
The best lash serum under $20, tested
Can a drugstore-priced serum really keep up with the premium bottles? We ran it head to head.
Routine4 min read
Why consistency beats concentration
The single habit that separates people who see results from people who don't.
Extensions6 min read
Using a serum with lash extensions
What's safe, what weakens the adhesive, and how to keep your natural lashes healthy underneath.
New pieces added as testing rounds and retests wrap up.