The Quick Take
Quick summary: Vegamour GRO Lash Serum scores 8.7/10 in our review. Primary appeal: a well-established clean-beauty brand with a brand-reported 60-day study; main caveat: the $68 price is high for a 3mL tube.
Vegamour has built one of the most recognizable names in clean hair and lash care, and GRO Lash Serum is their flagship eye product. After testing it for 12 weeks alongside 11 other serums, we can confirm it earns its reputation - though it doesn't come cheap.
The serum's phyto-active approach uses mung bean, red clover, and magnolia bark extract to support the lash growth cycle without any prostaglandins, parabens, or synthetic fragrances. It's a formula that checks every clean beauty box.
Review Snapshot
| Review factor | What our review found |
|---|---|
| Overall score | 8.7/10 |
| Formula status | Prostaglandin-free |
| Primary appeal | a well-established clean-beauty brand with a brand-reported 60-day study |
| Main caveat | the $68 price is high for a 3mL tube |
| Price and size | $68 / 3mL |
| Expected timeline | 6-8 weeks |
| Evidence checked | Ingredient list, scoring rubric, user-review patterns, and category comparisons |
"I'd been using Vegamour's hair serum for a year so I had high expectations for the lash version. It delivered - my lashes definitely filled in, especially the sparse outer corners. The only thing I noticed was a slightly tacky feeling when it dried, which I didn't love under my eye cream. But by morning, everything looked and felt fine."
✓ What We Liked
- Brand reports a 60-day study of 30 participants
- Current official label has no covered prostaglandin analogue names
- Fine-tip applicator supports precise use
- Current 3mL tube is designed for replacement every two months
- Available direct from Vegamour
✗ What Could Be Better
- Premium pricing at $68 per tube
- Results can take 8+ weeks for some users
- Some users report the formula feeling slightly sticky
- Subscription required for best pricing
Key Ingredients
Ingredient Snapshot
A plant-based formula with a brand-reported finished-product study. Here is what the current official label contains and what to expect before you commit.
→ Read our complete Ingredient Guide to understand every ingredient
Our Full Review
The Vegamour Approach
Vegamour describes GRO Lash Serum as a plant-based formula. The current official ingredient list includes red clover and mung bean sprout extract, acetyl tetrapeptide-3, magnolia bark extract, glycerin, and standard formula-support ingredients. That label confirms what is in the current tube; it does not show which ingredient caused a finished-formula result.
Vegamour reports a 60-day study of 30 participants who used the finished serum twice daily. The brand says that study found visibly fuller and longer-looking lashes. The public product page does not provide enough detail for us to grade the study as peer reviewed or independently replicated, so we treat it as brand-reported finished-formula evidence.
Our Testing Experience
The GRO applicator is a fine-tip brush, similar to a liquid eyeliner pen. Application is straightforward: one swipe across the upper lash line at night, after cleansing. The serum itself is clear with a slight amber tint and has a mild botanical scent that dissipates quickly.
Our panel used the serum once nightly for this review. Vegamour's current directions instead say to apply twice daily for the first two months and then reduce to once daily. That difference limits direct comparison between our panel observations and the brand-reported study.
One note on texture: two of our testers found the formula slightly tacky as it dried. It wasn't uncomfortable, but it was noticeable compared to thinner serums like Root 1 or The Ordinary. This resolved within a few minutes.
Results appeared around week 7-8 for our panel. Growth was most noticeable in lash thickness and density rather than dramatic length. One tester described it as her lashes looking "filled in" - the gaps between individual lashes seemed to shrink. By week 12, all testers showed meaningful improvement, though none reported the kind of dramatic before-and-after transformation that some prostaglandin serums can produce.
The Price Question
At the current one-time price of $68 for a 3mL tube that the brand says to replace every two months, GRO comes out to about $34 per month. The current subscription price is $57 per tube, or about $28.50 per month at that replacement pace. Price, directions, and the 3mL size were checked on Vegamour's official product page and official product image on July 11, 2026.
Is the premium justified? If you're deeply invested in the Vegamour ecosystem (using their hair and brow products already), the lash serum is a natural addition. If you're evaluating it purely on lash growth performance per dollar, there are stronger values on our list.
Who GRO Is Best For
GRO may suit shoppers who want a prostaglandin-free lash serum from an established brand and are comfortable weighing brand-reported evidence. If independent replication or lower cost matters more, compare the evidence and price of other options before choosing.
Week-by-Week Results
GRO's phyto-active formula follows a botanical growth curve - slower and more gradual than prostaglandin serums, but ultimately steady and reliable. Here's what our testing panel experienced over the full 12-week period.
Vegamour GRO Across 12 Weeks
A slower botanical build, strongest on density and lash health rather than dramatic length.
Weeks 1-2: No visible changes to lash appearance. The mung bean and red clover compounds need time to begin influencing the follicular growth cycle. During this phase, all three testers noted the serum's slightly tacky dry-down but no irritation or sensitivity. Lashes looked identical to baseline photos.
Weeks 3-4: Still early days visually, but one tester mentioned that her lashes seemed slightly less prone to falling out during her cleansing routine. That was a personal observation, not proof of a mechanism or a specific ingredient effect. No measurable length or density changes appeared yet across the panel.
Weeks 5-6: Subtle but real changes started appearing. Two testers noticed increased density - particularly along the inner lash line where sparse areas had been most obvious. Length was not yet significantly different, but lashes appeared slightly more uniform. The improvement was the kind you'd notice in a side-by-side photo but might miss in the mirror day to day.
Weeks 7-8: This was the turning point for our panel. All three testers showed clear improvement in both density and thickness. Lashes looked fuller and more "lush" even without mascara. One tester described the effect as her lashes looking healthier overall - less wispy, more defined. Length gains were moderate but noticeable, particularly on the outer corners.
Weeks 9-12: Continued, steady improvement. By week 12, our testers showed roughly 15-25% improvement in average lash length, with the more significant gains being in overall fullness and lash health. GRO didn't produce the same peak length gains as our top-ranked serum, but the density improvement was among the best we tested. Growth felt sustainable rather than dramatic - a steady build rather than a sudden transformation.
Application Experience
GRO uses a fine-tip brush applicator similar to a liquid eyeliner pen. The brush is thin and precise, making it straightforward to trace along the upper lash line in a single pass. Vegamour recommends applying once daily, at night, on clean skin.
The formula has a clear, very slightly amber appearance with a faint botanical scent that fades within a minute. Texture-wise, it's thicker than a pure water-weight serum - more of a light gel consistency. This is where the one consistent criticism across our panel came in: the formula dries with a slightly tacky finish. It's not uncomfortable, but it's noticeable. If you apply eye cream immediately after, the tackiness can make the cream feel like it isn't absorbing properly. Our workaround was to wait 2-3 minutes after applying GRO before layering anything on top, which solved the issue.
Dry time is approximately 60-90 seconds - longer than the thinnest serums in our lineup but not unreasonably slow. None of our testers reported stinging or tingling during this test. That panel result does not prove the formula will be irritation-free for every user. Morning application is possible if you prefer it, and the serum layers fine under makeup once fully dry, though the slight tackiness can make primer application feel slightly different.
Value Analysis
At $68 for a 3mL tube replaced every 60 days, GRO costs roughly $1.13 per day or $34 per month. The current $57 subscription price brings that down to about $0.95 per day or $28.50 per month. Over a full year, that is about $408 at the one-time price or $342 on subscription if the replacement pace stays constant. The value question depends on how much weight you place on brand-reported finished-formula evidence, our panel result, and the lower prices of other options.
Annual Cost: Vegamour GRO vs Alternatives
A year of lash growth priced across three approaches.
What Real Users Are Saying
Been using this for 4 months now. My lashes look so much fuller. Worth the splurge for a clean formula from a brand I trust.
Good results but pricey. I switched to their subscription to save some money. Takes a while to see results - I'd say week 9 was when I really noticed a difference.
I use the full GRO line - hair serum, brow serum, and lash serum. The lash version is good but honestly the slowest of the three for me. Definitely works, just be patient. The sticky feeling when it dries is my only real complaint.
Across Sephora reviews, GRO consistently earns praise for being gentle and irritation-free - a point that comes up especially often from reviewers who switched from prostaglandin-based serums. A common theme on Reddit's skincare and beauty communities is that GRO performs best for density and fullness rather than dramatic length, which aligns with our testing. The most frequent criticism is the price; multiple Sephora reviewers note that they love the product but struggle to justify the ongoing cost, particularly when subscription management has reportedly been frustrating for some users. Several reviewers mention difficulty canceling or modifying their subscriptions through the Vegamour website. On the positive side, the brand's customer service is generally well-regarded, and many long-term users report that results maintain well once established - some even note they've been able to reduce application from nightly to every other night after the initial growth phase without losing progress.
Our Verdict
Vegamour GRO is a prostaglandin-free serum from an established brand with a brand-reported 60-day study. Our panel saw gradual changes, but that result does not establish universal effectiveness or safety. The current price remains the main tradeoff, so compare the evidence, formula, and monthly cost with other options.
Where to Buy Vegamour GRO Lash Serum
Vegamour GRO Lash Serum: Frequently Asked Questions
Is Vegamour GRO Lash Serum worth it?
Vegamour GRO Lash Serum is worth considering if your priority is an established brand with brand-reported finished-formula evidence. Still compare alternatives if this tradeoff matters to you: the $68 one-time price is high for a 3mL tube.
Is Vegamour GRO Lash Serum prostaglandin-free?
Yes. Our ingredient review found no prostaglandin analogues in Vegamour GRO Lash Serum. It uses a prostaglandin-free approach, so results usually build more gradually than formulas driven by prostaglandin analogues.
How long does Vegamour GRO Lash Serum take to work?
Our review uses 6-8 weeks as the realistic results window for Vegamour GRO Lash Serum. Judge it after consistent use through a full lash-growth cycle, not after the first few applications.
What is the main tradeoff with Vegamour GRO Lash Serum?
The main tradeoff is that the $68 one-time price is high for a 3mL tube. We weigh that against the current ingredient label, price, application experience, panel observations, and evidence limits before assigning the final score.