NULASTIN Shape Altering Eyebrow Serum - Brow Serum to Shape & Define - Improves the Appearance of Sparse Eyebrows for a Fuller Look - Enriched with Hair-Strengthening Ingredients (0.1 Fl Oz)

It is the first brow serum that actually works for me! My brows were sparse and light. This serum has darkened them to my original brown color and my brows have definitely filled in! Will definitely be ordering more !

This honestly works! I’m not a big serum/product girl, but I read online about different eyebrow serums since mine has been super thin forever. I rarely remember to use those twice a day and sometimes it’s more of an every other day thing, but there is a notable difference after just a month of using! So noticeable that people ask me about it.

I bought the Nulastin lash and eyebrow serums. Started using both July 1 (so I've been using them over 70 days, 10 weeks). Noticeable improvements in brows, no doubt about it, but little to no difference in lashes. So I do recommend you trying the brow serum. The downside is I'm not sure I noticed an improvement until I was into my second tube, so if you are going to try it, you may as well buy two tubes because I don't think you'll see results with just one. Since July 1, I'm about at the end of my second tube (so I guess that's about 5 weeks per tube). The price is also kind of crazy. If it works and the customer has to keep buying it in order to maintain the brow growth, why charge so much? It would be nice if they gave you a discount on future purchases.

This works! Not fast, but it works. I first started over a year ago using this gel, and I had very little eyebrows left. Had to draw them on every day. Even have a joke with friends that if I am ever in the hospital or very sick, someone needs to come and draw on my eyebrows. First picture is from May 2025. I had already been using Nulastin for about 3 months and was starting to get some brows, but still needed to use eyebrow pencil to fill in. Second picture is March 2026. NO eyebrow pencil- those are my eyebrows! I even need to pluck under the arch again. Use 2 times a day - give it time - I’m thrilled with this product.

I am 67 with hypothyroidism = no eyebrows. Until....Nulastin! I started using Nulastin on June 5th and am beyond happy with my brow growth thus far. The picture shows my brow growth in 4 weeks. I did have a reaction and had to pause it for a few days. At about the week and a half mark I experienced extreme itching and had some swelling above and in the brow line. Since I restarted I have had no issues. I started on my second tube a day ago. Excited to see more growth and hoping for brows to get a bit darker.

It works! Takes a good 6 to 10 weeks to show fully. Darkens a thickens brows and lashes profoundly!! Brow serum seems to run out just shy of a month. I’m still using my original lash serum tube purchased last May.

I was skeptical but after 8 months of regular use, my brows are more full and more beautiful than ever!!

I have used this product on and off for a few years. It does work but you have to keep using it. It is expensive. I noticed after not using it for a few months my eyebrows get thinner. I find the amount of serum in the tube is skimpy and have no way of determining if the amount in there is accurate as the tube is not clear. One tube does not last 6 weeks as advertised. And I do not over use the product when applying it. So while it does work I am on the market for another brand with the key ingredients such as Isopropyl Cloprostenate (a prostaglandin analog), Myristoyl Pentapeptide-17, and Elastaplex® Technology, which support hair growth and follicle health. If i find another less-expensive option, I will update this post.