Obagi Nu-Cil Eyebrow Boosting Serum - Ultimate Eyebrow Growth Serum with Hyaluronic Acid - Dermatologist Approved for Thin, Patchy & Over-Tweezed Eyebrows - Fast Absorbing - 6ml

I was very skeptical but thought I would give this a try anyways. I have never plucked my eyebrows because they were as near perfect as you could ask for growing up; however, as I have aged they have gotten very thin and started to turn gray. After using this ( Obagi Nu-Cil Eyebrow Boosting Serum ) for a little over a month I can definitely say it's working; my eyebrows have not only started to fill in, they are not nearly as gray ! I'm not sure how it works, but it does, and the part that is the oddest to me is that it brings back your natural color somehow !!! I do wish it was a little less expensive since I'm sure if I stop using it my eyebrows will go back to thin and gray...

After 30 days of applying this serum every day, all I really noticed was slightly darker brows. After 2 months I have darker, thicker brows. I can’t believe it worked! One reviewer was right, if you apply it at night and make sure all your eyebrow makeup is off it really seems to work best at night. After one month I started applying it at night and in the morning 5 minutes before doing my normal brow makeup. It made a huge difference. You will have to tweeze the random hairs that pop up outside your desired brow. I had some brow hairs get so long they needed trimming! My brows are continuing to fill in and I can leave the house in a pinch without adding any pencil. For reference I am 46 and have normal brow thinning due to aging. Hope this review helps you pull the trigger on this serum. Worth the money!

Best product I ever used. My eyebrows absolutely grew back in 3 months 100%

I only used it once before my brows got red and eyes got swollen so I’ll never know if it’s effective. Also, there was barely any product in. The brush came out dry. I had to really swirl the brush inside the tube to feel I am putting something on. 5ml is not much but it is more than most mascara samples which last for a while. I feel this would last a week maybe. Mine was either dried out or emptied. Disappointing

Overall happy with this purchase. My eyebrows have lost a lot of density and it’s always been an insecurity of mine. I started using this 1/23/2025 (first pic). Second pic is after 2 weeks of using 2x a day. Third pic is today 2/19/2025 after not using for 4 days from misplacing it. I’ve noticed the density has gone down from what it built to in the second pic so I will keep that in mind and use daily.

I was a bit skeptical about the product because I have used drug store lash serums before and they have never done anything noticeable.My brows have definitely become thinner and lighter with age and years of over plucking in my younger years. I’ve had to tint and laminate my brows and use brow pencil to fill in spots just to make them look full and darker.But I’ve been using the brow serum since June 1st ( about 8weeks now) and they have definitely gotten thicker AND darker! I definitely see growth of new hairs within my brows. I have plucked them just to keep a nice shape but I’m talking a hand full of out of place hairs. The rest I’ve just let grow. I have been applying the serum past the tail of my brow in hopes that I’d grow more hair on the ends for longer brows. But I haven’t seen any improvement there.I definitely recommend trying this product and worth the money. I will be purchasing the lash serum next to see if that works on my short, thin straight eyelashes.*lighting in the after pics is wonky and is not as bright as the before pics. But they are just slightly slightly lighter and definitely have made my brows darker for sure!Edit: just want to add that if you stop using it your eyebrows go back to the way they were. I had stopped using it for a while and they lightened up and thinned again.

I started this in June, using it 2x/day, and began to see results in about 4 weeks. By 8 weeks, I KNEW it was working. Brows are fuller, longer and darker. Mine were never really over-plucked, but just thinner and lighter due to aging. The color of my brows seems darker than when I was younger, but who's complaining? Just happy to have brows again! I have been very careful about where I apply the serum; despite my efforts, I am seeing brow growth below my normal brow area, which I may end up tweezing at some point. Right now, though, I'm just allowing them to grow to see how full they will get. I do not use the product every day anymore, but I use it at least every other day. A note about auto-ship. I bought my first tube on auto ship and the 2nd one shipped out 4 weeks later. However, I had to stop the autoship because I am still on the first tube six months after opening it! Maybe I'm conservative in my application of the product, but I think it lasts a long time and is a good value for the money. If you're on the fence, get it!

I hate that this works well because its so expensive! I was using something cheaper that worked but then learned about Prostaglandin and its side effects and stopped and lost all growth. I was recommended this, and after about 6 week of fairly regular use I'm pretty much back to where I was with the other stuff. I'll keep ordering it!