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If I’m being honest, before trying the Kosas GrowPotion, I didn’t think much about my lashes and brows. My eyelashes were remarkably short, easily masked with falsies for a night out. My eyebrows were not necessarily sparse, but fine at best—nothing a brow gel or my handy Anastasia Beverly Hills pencil couldn’t fix.
It wasn’t until I took a deep dive into growth serums last summer that I even realized I had a “problem” that needed solving. When I asked Los Angeles–based dermatologist Dr. Jessica Wu if these hairs could grow back denser and fuller, she said yes, as long as the follicles have not been permanently scarred. Board-certified dermatologist Dr. Divya Shokeen echoes this sentiment, explaining that growth can be achieved through lash and brow-growth serums, though results vary by individual. “The active ingredients in these serums are typically peptides, vitamins, prostaglandins, and plant extracts which help to stimulate hair growth by extending the growth cycle of hair follicles.” (Nowadays, prostaglandin (PGA) use is oft-cautioned against: “over time [PGA] can lead to fat atrophy and irritation of the skin so it is not advisable to use them long term.”)
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An over-the-counter solution felt simple enough, so I thought: “Maybe I should seriously give these formulas a try!” Over time, I got my hands on a few of the most sought-after variants and did not see any results within weeks as promised. That is until I tried this.
About Kosas GrowPotion
Kosas GrowPotion is a clean, 97% natural, dual-action lash and brow serum designed with sensitive eyes in mind. “When I made Air Brow-Clear, I was so impressed by the improved appearance of my natural brows, I knew I wanted to make a version you can wear overnight (without the definition and hold of the brow gel),” shares Kosas founder Sheena Zadeh-Daly. “Using the brow gel as a base, I added 6x more powerful and effective hair-boosting actives so brows and lashes could reach their fullest, fluffiest potential.”
This is led by a peptide trio and vegan keratin instead of prostaglandin to promote longer, stronger, thicker hairs. “Specifically it also contains panthenol [and] amino acids from soy protein for thicker growth, as well as biotinoyl tripeptide-1, an activate agent that minimizes hair fall out and focuses on hair growth,” Shokeen adds. Castor oil, biotin, and hyaluronic acid are featured, too, ensuring optimal conditioning and shine. “Overall, I would recommend the Kosas formula for those looking for an over-the-counter option to promote eyebrow and eyelash growth.”
To achieve optimal results, Shokeen says to use the serum carefully and follow all instructions. Kosas recommends applying the serum to a clean, dry face each night—allowing two minutes for the formula to dry before continuing your routine.
My Experience With Kosas GrowPotion
Its multipurpose benefits are most compelling to me—as I could conveniently treat my lashes and brows at once. Application was made even simpler by its doe-shaped wand: The flat side allowed me to coat my brows, while the angled tip placed the right amount of serum to my lash line. I found that the formula dried down quickly, meaning I was not left with excess seeping into my eyes.
GrowPotion fit seamlessly into my 22-step bedtime routine. Night after night (even while traveling!) I applied the serum religiously. The four week mark is when I actually noticed improvements to my natural hairs. When applying my favorite mascara, I was shocked at how long my lashes looked. My eyebrows appear fuller in their bare state—sans gel or brow pencil. With consistent use, I realized how beneficial incorporating this wonderful elixir has been. My lashes and brows have never felt stronger, or looked thicker and shinier. While I certainly will give other formulas a proper test, it’s safe to say I will always fall back on this one.
