Independent UK reviews of eyelash growth serums — tested, scored and ranked in the open.
+See the 2026 rankingWhat actually
works on lashes
TL;DR — the serums worth buying in the UK combine a well-dosed active (typically a peptide such as myristoyl pentapeptide-17) with conditioners like panthenol and biotin, a fully published ingredient list and no fragrance. Expect first visible change around week six and a full result at week twelve to sixteen.
- Bimatoprost is a prescription-only medicine in the UK and cannot be sold as a cosmetic — what that means.
- Price does not predict performance. Two of our top three cost under £50.
- Results are maintenance-dependent: stop applying and lashes revert within two to three months.
The current top three
+ All six
01QUALASH Advanced Eyelash Growth Serum
The clearest density gain in our panel, with no reported stinging or lid sensitivity.
02UKLASH Eyelash Serum
Reliable length gains, UK dispatch and the safest starting point for first-time buyers.
03RevitaLash Advanced
The reference serum — excellent on lash condition, held back only by its price.
How we score
a lash serum
Every product is used nightly for twelve weeks by a panel of UK testers. Scores are published with their weightings so you can disagree with us on the record.
+Full testing protocol
One line, one minute,
twelve weeks
Application error is the most common reason a serum appears not to work. Too much product, the wrong part of the lid, or skipping nights all flatten results.
+ Step-by-step guide
