The full review
12-week user trial · INCI read line by line
What is in it
The bulk of the formula is a decent peptide and botanical base: biotinoyl tripeptide-1, panthenol, hydrolysed wheat protein, centella and liquorice extracts. The last ingredient on the list is dechloro dihydroxy difluoro ethylcloprostenolamide at 0.0015% — the same compound RevitaLash uses, and one of the three the SCCS concluded in February 2026 cannot be considered safe in cosmetic lash products. XLASH also sells a separate Sensitive version marketed as analogue-free; this review covers the classic formula.
Full ingredient list
Aqua, Propanediol, Glycerin, Panthenol, Biotinoyl Tripeptide-1, Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein, Butylene Glycol, Hexylene Glycol, Centella Asiatica Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Chamomilla Recutita Flower Extract, Rosmarinus Officinalis Leaf Extract, Fructose, Glucose, Sucrose, Urea, Dextrin, Alanine, Glutamic Acid, Aspartic Acid, Hexyl Nicotinate, Hyaluronic Acid, Alcohol Denat., Phenoxyethanol, Xanthan Gum, Ethylhexylglycerin, Dechloro Dihydroxy Difluoro Ethylcloprostenolamide (0.0015%).
How it performed
Fast. Most of our panel reported visible change between weeks five and seven, and by week twelve the majority showed both added length and density. Three testers reported mild stinging in the first fortnight that settled. No eyelid darkening was recorded over twelve weeks — which, as with every analogue serum here, says nothing about twelve months.
Who it is for
People who want results quickly, have read what an analogue does, and have accepted the trade. Not for anyone with glaucoma, on prescribed eye drops, pregnant or breastfeeding. If the ingredient is the problem rather than the price, XLASH sells a Sensitive version — check which box you are holding.