Updated May 2026
We tested 5 of the most popular lash growth serums for a full 12 weeks — measuring real length gains, scrutinizing every ingredient, and tracking side effects. Here's how they ranked.
Our highest-rated serum overall is GrandeLASH-MD Lash Enhancing Serum — the strongest on raw results. But it uses a prostaglandin analog, so here's what we'd actually recommend to most people:
Best Value · 4.6/5 · #3 overall
It isn't the flashiest serum on raw length — that's why the prostaglandin options rank above it overall. But for safety, value, and everyday use nothing beats it, which is exactly why it's the serum we'd recommend to most people.
Grande Cosmetics
GrandeLASH-MD is the highest-rated serum in our ranking for raw results and popularity — but it uses a prostaglandin analog. Here's who it's for and who should choose differently.
RevitaLash Cosmetics
RevitaLash Advanced is a physician-developed lash conditioner beloved by lash pros — but it's pricey and uses a prostaglandin analog. Our honest review.
Toplash
Toplash is our best-value pick and what we'd recommend to most shoppers — prostaglandin-free, EU-certified, and a fraction of the price of the top-ranked serums. Our full hands-on review.
Vegamour
Vegamour GRO is a vegan, prostaglandin-free lash serum built on plant actives. It's a clean-beauty favorite — here's how it actually performs and who it's for.
Babe Original
Babe Lash Essential is a best-selling lash serum popular with extension wearers. It works — but it relies on a prostaglandin analog. Our full review.
| Rank | Serum | Price | Score | Prostaglandin‑free | Best for | Review link |
|---|---|---|---|---|---|---|
| #1 | GrandeLASH-MD Lash Enhancing Serum Most popular | $68 | 4.8 | ✗ No | Maximum length, for experienced users | Review → |
| #2 | RevitaLash Advanced Eyelash Conditioner Premium pick | $98 | 4.7 | ✗ No | Strengthening and conditioning brittle lashes | Review → |
| #3 | Toplash Lash & Brow Serum ★ Best value | $30 | 4.6 | ✓ Yes | Most people — safe daily use and best value | Review → |
| #4 | Vegamour GRO Lash Serum Best clean-beauty | $68 | 4.2 | ✓ Yes | Clean-beauty and vegan shoppers | Review → |
| #5 | Babe Lash Essential Serum Best for extensions | $65 | 4.1 | ✗ No | Lash-extension wearers wanting fast results | Review → |
“Prostaglandin-free” means the formula contains no isopropyl cloprostenate or similar prostaglandin analog — avoiding the risk of iris darkening and orbital fat loss. It's the main reason our prostaglandin-free value pick is the one we recommend to most people.
Every serum in this ranking went through the same protocol: a 12-week wear test with standardized photography, lash-length measurement, and a daily side-effect log. The overall order rewards raw results and popularity most — so potent prostaglandin serums lead it — but we score safety and value separately. That's why the serum we recommend to most people (our prostaglandin-free, best-value pick) may sit just below the #1 spot.
Read the full breakdown on our methodology page, learn how lash serums actually work, or compare our two top performers head-to-head.
Shopping for something specific? See our picks for the best prostaglandin-free serums, best for sensitive eyes, best value, and best for beginners.