NULASTIN Eyelash Serum & Brow Serum - Lash & Brow Dual System - Eyebrow & Eyelash Enhancing Serums with Keratin & Peptides for Fuller Looking Lashes & Brows (2 Count, 0.1 Fl Oz Each)

Wow. This brow serum REALLY worked for me. My brow “tails” were completely gone. I have been using this faithfully morning and evening for a little over 4 months. My brows are so thick now I don’t need any brow pencil for the first time in years.I don’t want to ever run out of this product!

I am 76 years old, and in my younger days had long eyelashes and thick eyebrows that needed routine plucking weekly to shape them. Over time, my eyelashes got so short they almost disappeared, and my eyebrows got thinner and no longer needed plucking.I initially saw this product on Facebook, and even though it is expensive, I decided to try it. Unfortunately, I didn't take a before picture of the lashes, but used a recent photo of the brows. After 3 weeks of use, twice a day, I could see some darkening and thickening of the brows. It was difficult to notice a difference in the lashes since I didn't have a before picture of them.After 7 weeks of use twice a day, my brows are definitely getting thicker and darker. It is starting to look like I am using a brow pencil on them, but I'm not. I have refrained from plucking my brows to shape them until some areas are more grown in. Although my lashes are getting longer, this isn't happening as quickly as the brows, but they do seem to be getting longer. Prior to using this product, I couldn't hold my lashes in my fingers because they were too short - now I can.To be honest, at my age, I didn't expect miracles, but this product does seem to be working. I suppose it may seem vain to want to grow the lashes and brows we had in our younger days, but why not eliminate the need for cosmetics that are supposed to create the same effect?I plan to continue the use of the product and see what the effects are over time. Aging doesn't happen overnight and it certainly won't be reversed overnight. I can't honestly say how much more this product will help in time, but will update the pictures once a month to show progress and any changes in my opinion.I should also mention that although the product page states each tube lasts 4-6 weeks, I haven't found this to be true for the brow serum as it lasts barely 3-4 weeks. The lash serum does last 4-6 weeks, so much longer than the brow serum. I suppose this could be due to the fact that more serum is required to cover the eyebrows than to line the eyelids. Even so, this should be considered by the seller, and more serum should be supplied per tube for the brow serum. Considering the cost of these products, each tube should supply enough serum for at least 4 weeks of use.UPDATE 08/25/23:I have been using both the brow and lash serums for 11 week, and have been religiously using them twice a day, morning and night. Comparing the beginning and 3-week photos to the 11-week photos, there is a definite improvement to both my brows and lashes.My brows have had the most dramatic improvement. My brows are thicker and darker, and areas I did not have enough brows have filled in. At this point, there is no need for me to fill them in with pencils or brow powders. They look fine with no cosmetics.Although the growth of my lashes has not been quite as dramatic as the growth of my brows, they have more than doubled in length - more so on the top lid. Prior to using this product, I couldn't see my lashes and I couldn't feel my lashes with my fingers. Now I can get hold of my lashes with my fingers and can see them when I look in the mirror. I can't honestly say my lashes have gotten thicker, but they have definitely gotten longer.Considering my age of 76, I really didn't expect much from this product, but I am happy with the results I did get. I expect these products would have better results for a younger person that still had active growth of brows and lashes.I hope this review was helpful for you.

I did not find satisfactory prostaglandin info in the Amazon product listing, but after experiencing SKIN DARKENING, I found this on the Nulastin website: "Ingredients That Support Hair Growth | NULASTIN - Cloprostenol Isopropyl Ester - An Active Ingredient - A biologically active, synthesized compound that has similar activity to a natural prostaglandin. Addresses the ANAGEN STAGE OF HAIR GROWTH. Energizes the follicles and primes them to increase their rate of production; demonstrably invigorating the growth cycle. Protects against breakage and thinning." This ingredient behaves the same as actual prostaglandins and there is a skin and iris darkening risk. BEWARE. I experienced skin darkening in the areas I was applying it. I stopped weeks ago and the skin is still darkened.

I’ve been using Nulastin for several years. Initially, I felt that both worked well. Now, I continue to be able to maintain full lashes, but the brow serum is less successful. It keeps the brow hairs from falling out quickly, so they appear fuller, but it is not filling in bare spots for me.

It works. It's pricey but it seriously works. I have lashes again and the ends of my brows grew back. AND I only use it once per day.

Bought a three month supply. Ran out of the brow serum after two months, but saw no improvement with lashes or brows after two months. Two stars because I don’t have any adverse events, but I won’t buy again

First: the eyebrow serum. It works, but not super well. At least I no longer feel like the first thing I need to do when I get up in the morning is draw on my eyebrows. It took much longer than the lash serum to notice a difference.Next: the eyelash serum. I noticed a difference in about two weeks. Then my lashes really took off to the point I had to trim them! But then the side effects started. Red eyelids with little styes, itchy eyes and my right eye actually changed shape. The outside corner was stretched. Another thing was I grew little wiry hairs underneath my eyes. So, I discontinued the lash serum but I’m still using the brows.

I used this product to help regrow my lashes and eyebrows after undergoing chemotherapy and radiation treatment. After just two weeks of use, I went from having almost no eyebrows and very thin lashes to needing to stop using the product. The serum has no odor and did not cause any irritation to my eyes.