Vegamour GRO Lash Serum Review

Our Full Review

The Vegamour Approach

Vegamour positions itself at the intersection of clean beauty and clinical science. Their GRO line (which spans hair, brows, and lashes) is built around what they call "phyto-actives" - plant-derived compounds that they've studied for their effects on the hair growth cycle. For lashes specifically, the star ingredients are mung bean (which contains proteins that may support keratin production), red clover (rich in isoflavones), and a proprietary clover flower lipid complex.

The brand has invested in clinical studies, which is relatively rare in the prostaglandin-free space. Their published data shows visible improvement in lash appearance for the majority of users within 90 days. Our results were broadly consistent with these claims.

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.

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 $72 for a 10mL bottle that lasts roughly 2 months, GRO comes out to about $36/month - nearly double what SOWN costs per month and significantly more than budget options like The Ordinary. The Vegamour subscription program brings this down to around $61/bottle, which helps but still positions it as a premium product.

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 is a strong choice for clean beauty enthusiasts who want a prostaglandin-free lash serum from a brand with established clinical credibility. It's also a good option for people who prefer to shop at Sephora or other retailers rather than direct-to-consumer brands. If you value brand heritage and clinical backing over absolute cost efficiency, GRO delivers.

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.

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. This is consistent with the strengthening and conditioning properties of the clover flower lipid complex. No measurable length or density changes 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. There was zero stinging or tingling upon application for any of our testers, which is expected from a prostaglandin-free formula. 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. We recommend nighttime use for the cleanest experience.

Value Analysis

At $72 for a 10mL bottle that lasts approximately 60 days, GRO costs roughly $1.20 per day or $36 per month. The subscription option at $61 per bottle brings that down to about $30.50 per month. Over a full year, you're looking at $432 at full price or $366 on subscription. That's not cheap - it's roughly double the annual cost of our top-ranked pick for results that were, in our testing, somewhat less dramatic. The 10mL bottle is generous compared to the 3mL standard in this category, but the two-month lifespan means you're reordering frequently. For Sephora Beauty Insider members, the ability to earn points softens the cost slightly. The value proposition ultimately depends on how much weight you place on Vegamour's clinical heritage and retail availability versus raw performance per dollar.