NIOXINHair Fall Defense Intensive Daily Leave-In Hair Treatment | With Niacinamide, Caffeine, Lauric Acid, and Sandalore | For Thicker, Stronger Hair | 2.3 Fl Oz.

I've been using the Nioxin Hair Fall Defense Intensive Daily Leave-In Hair Treatment, and it has made a significant difference in my hair health. After consistent use, I've noticed a substantial reduction in hair fall and breakage. My hair feels thicker, stronger, and more resilient.The application is straightforward—just a few pumps massaged into the scalp daily. The formula is lightweight and doesn't leave any greasy residue, making it perfect for everyday use. The scent is mild and pleasant, which is a bonus.Overall, this treatment has exceeded my expectations. It's become an essential part of my hair care routine, and I highly recommend it to anyone struggling with hair thinning or loss.

I wanted to wait until 2 months after use before posting my honest review. I’ve been using Nioxin hair serum consistently for about 67 days. I apply it directly to my scalp (I part my hair into sections, then spray), I then use a scalp massager massaging my scalp for 3 minutes. I’ve been doing this twice a day. My hair is fairly healthy, but I’ve been having issues with shedding since summer. I have fine hair that’s low density. What I’ve experienced since I started using is little to no shedding- definitely shedding less than the normal 50-100 strands. In the 2 plus months I have about 2 inches of hair growth (I purchased one of those hair growth tracking tshirts). I find many serums/oils boast hair growth, but few talk about growth retention. My hair is stronger and most importantly thicker. Overall I love it and find it to be very effective!Now a very small minus is the smell which takes some getting used to. The product has a sandalwood smell which I am not a fan! What I did to “lessen” the smell is I apply 1-2 small sprays closely to my scalp then I spread the serum across my scalp using my finger- I don’t smell anything doing this. The serum doesn’t make your hair oily or greasy after applying. You can use sparingly (1-2 pumps) then use a scalp massager to spread it around. I purchased for 50 USD, but I feel like this will last me 4-5 months even applying twice a day. I don’t think it has protein in it which is great because I am protein sensitive and I find many of the popular hair oils contain protein. Overall it’s a great product and I will continue to use it.

I’ve been on the hunt for a good serum that contains both caffeine and niacinimide as those ingredients are shown to help with scalp health and hair loss. This product checks all the boxes for me, but my one problem with it is that it is incredibly heavily scented. I have to be careful how much I apply because one too many sprays will give me a headache.

I prefer using this than minoxidil. It does contain achoal but when I used the minoxidil it would burn my scalp and make my hair thinner but I learn to use this at night and then drink this one liquid form 2 table spoon in morning and my hair had thicken and became more healthy. Do recommend it doesn’t burn your scalp if you’re a man the smell is like a deodorant type smell it doesn’t smell bad tbh I use it in the night so it don’t bother me tbh doesn’t bother me if I used in day. Overall I recommend this

You should just check your expiration dates when you get the bottle. I purchased one on July 17, 2025. Expires January 2026. Okay. Then I checked the bottle I still had that was purchased December 2, 2024, and that expiration date was 08/2024.The product itself works pretty good, not great for me, but you need to keep using it every day. I'm willing to go along with pretty good, as long as I keep getting good expiration dates.

I don't know how well this product works because I simply could not get over its pungent fragrance. Gross. Listen, I love Nioxin. I've been an avid fan and daily user of its various leave-in products for years. YEARS. But, this is the first Nioxin product I had to throw out because it just smells SO BAD. The smell is not only pungent and strong, it's just straight-up bad. It smells like an incredibly offensive men's cologne - like cigars, tobacco, whiskey, smoke, and alcohol. It's so strong that it caused an eczema flare-up on my neck!! That was the final straw for me - if it hadn't triggered that eczema flare-up, I would've done my best to ignore the fragrance and I would've continued to use this product to test its effectiveness. But, after just three (3!!) uses, my neck became super red, itchy, scaly, and inflamed. Once I stopped using the product, my skin completely calmed down. I wanted to give Nioxin the benefit of the doubt so, after a long pause, I picked this up again. Bad idea. Alas, just three (3) uses in, once again, my eczema flared-up like crazy. This is definitely a NO-GO for me. Nioxin, can you PLEASE make this fragrance-free or with a lighter fragrance?!

I have been using this product consistently now for about 3 months, and I have to say I absolutely love it. My hair is definitely thicker and stronger than it was before. I am also very surprised at the people who are going on about the smell. It does have a scent, but it's a very clean & minty scent that I actually really like, and have received compliments on- so it's funny to me to see people saying the smell is horrible. I completely disagree. I will also say that I do not use this product alone. I use the Nioxin Night Density Rescue Serum, the Nioxin System 2 shampoo/conditioner kit, and I also take prescription Finasteride and Minoxidil. I have found that the best way to get amazing results is to do multiple things simultaneously that are proven to get results. Sure, I'm not exactly sure which of them is doing the most help, but I think together they all do the best job. Way to go, Nioxin!