The peptide lash serums set to dominate 2027.

The new generation of QUALASH goes all-in on peptides. The formula combines three peptides, each with its own job: Acetyl Tetrapeptide-3 for anchoring the lash, Octapeptide-2 for the growth phase and Biotinoyl Tripeptide-1 for strength and thickness. The manufacturer explicitly states the formula is prostaglandin-free. That makes it the most complete peptide profile in our ranking — and the serum we expect to set the standard in 2027.

The budget champion of the peptide category. The Ordinary names four peptides, including Myristoyl Pentapeptide-17 and Acetyl Tetrapeptide-3 — the same building blocks you find in far pricier serums. One bottle works on both lashes and brows. If you have patience, this is the most peptide per pound.

Swedish brand SWEED builds its serum around a multi-peptide formula with Octapeptide-2, backed up by panthenol and hyaluronic acid for moisture and flexibility. It pairs a growth-focused peptide with a conditioning base — a good middle ground if you want both length and lash condition.

The premium option on the list. OLAPLEX brings its well-known bond-building technology from haircare to the lash line and pairs it with its own peptide complex. The serum focuses on stronger, less brittle lashes and suits anyone who already trusts the brand.

German brand JUNGLÜCK pairs Biotinoyl Tripeptide-1 with Myristoyl Pentapeptide-17 and adds 3% panthenol for extra conditioning. The serum is designed for lashes and brows, making it a practical all-in-one if you like to keep things simple.

UKLASH sells several lash serums; this ranking is specifically about the Complex Peptide version. It combines a peptide complex with hydrolysed wheat protein, which helps lashes look fuller and feel stronger. At 3 ml, it is the smallest bottle on the list.

Hairlust mixes peptide with pure conditioning: the Capixyl™ complex is combined with aloe vera and jojoba oil. The serum feels soft and nourishing, although its peptide profile is narrower than the front-runners. A good choice if your priority is improving lash condition.

Clinique uses three peptides — Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7 and Acetyl Tetrapeptide-3 — plus caffeine and sodium hyaluronate. A refined, gentle formula from a brand known for sensitive-skin products. Results are subtle rather than spectacular.