The journal
Ingredient-first reading on lash growth, safety and how we test.
Peptides versus prostaglandins: what UK law actually allows in a lash serum
Bimatoprost is a prescription medicine here, not a cosmetic ingredient. What that means when a serum promises medical-grade results.
How to read a lash serum INCI list in ninety seconds
Position beats presence. An active listed after the preservatives is decoration, and three tells separate a formula from marketing.
Lash serums after 40: what changes in the growth cycle
Growth phases shorten with age, which is why the same product reads differently at 45 than at 28 — and how to adjust the routine.
Using a serum with extensions or a lash lift
Oil-free or nothing. What lash technicians told us about aftercare, adhesive breakdown and timing between appointments.
Irritation, lid darkening and when to stop
Which reactions settle in a fortnight, which never should, and the point at which a serum belongs in the bin rather than on your lash line.
Our twelve-week testing protocol, in full
Panel selection, photography conditions, measurement method and the weightings behind every score we publish.