Size 3.38 oz|
Store & Pickup Availability
Nioxin Diamax, Hair Thickening & Breakage Protection Treatment For Thinning Hair increases the thickness of each hair strand for visibly fuller-looking hair.
How to Use
Rated 4.35 out of 5 stars
For those of you who have 'skimpy' hair, use this on towel dried, wet hair. It thickens those skinny strands and when you blow dry, you hair looks a little fuller.
This product is not for me. Didn't like alcohol was listed in top ingredient. Second it contains niacin, which can cause flushing. Can interact with certain meds, ask your doctor. This product made my scalp itch, and gave me terrible headaches.
Sophie from Arlington Heights, IL
I use this product every other day. My always get compliments on my hair and I attribute the compliments to this product.
Debra from Kansas City, MO
Easy to use and helps my hair feel easier to manage, strands feel a little more volume. Product is pricey but will buy it again for sure. Only need to use a little so will last a long time. Good value overall since it works!
REBECCA from The Villages, FL
Nothing negative to report. It's outstanding. I've built considerable volume to lmy fine, imp hair. Started using it twice a week and after three months, I'm using it only once a week. I apply it to dry scalp and hair, after using a styling product. It was definitely worth the investment for me. I've even given up salon hair coloring since this product gives me the same result.
Jo58 from California
I bought this product (through another website) to try, thinking it would end up sitting on the shelf unused. THIS PRODUCT WORKS! I have long fine hair, and with age the low hair density has become more noticeable. After only ONE use it looked like I had twice the head of hair. I will always use this as part of my hair routine!
Alex from Boston
Nioxin has done it again! Noticed a difference after only one use. My hair has more volume at the root. Excellent product, would recommend!
Bush from Holland, PA
I've used this hair thickening gel and it is GREAT!
OAM from Norwalk CT
You have to really use it for at least two to three months to see results
Ellegirl from Troy, NY
Only used twice so far as I just bought it five days ago. It definitely does what it says it should do. So far very happy with this product.
MlWhip from York, PA
An Ulta hair specialist recommended this product to me when I approached her about severe hair loss and hair thinning and breakage. I do not lie; after one night, I woke up to tiny hairs that had grown in less than 12 hours! I am hooked! The product smells very nice and light. It's like a gel that you squeeze out in very small quantities, and it goes a long way. I will definitely recommend this to others, and I will continue using myself. So thankful!!
Chris the dog liver from Collierville tn
I use it after I wash my hair while it's wet and style as usual
Ally from Ohio
Upon reading the reviews for this, I was excited to try. But unfortunately it didn't yield any results for my hair :( It did a nice texture, but as far as thickening or making it look fuller, it did not.
nola from New Orleans
Suffering from an immune disorder that makes my hair fall out constantly. Makes my hair look fuller, almost how it used to look before my body starting wreaking havoc on my hair. Makes my hair manageable and fluffy at the crown without being greasy.
JG from Cali
Only two treatments before I started to notice the difference! It doesn't make your hair greasy or lay flat or feel like it's weighed down it gives you big hair it's crazy! I don't know how they do it or what the heck the secret is but I am in love I will buy it for the rest of my life I bought two get one free and I'm super happy I did it will be a go to product for me for life please don't ever stop making this product!
Jehrheheh from New York, NYC
I love it, it's the best thing that has happened to in a little bit.
Ally from Columbus, OH
I have thin flat hair and unfortunately noticed no difference when using this product every day :/
Cat from Houston
I highly recommended this to my sister and she also loved it!
Sharon from Stockton,ca
Love this product! I use it every time I wash my hair!
Dorothy from Prince George Virginia
After washing hair. Gave it volume.
Nioxin fan from Denver Colorado
I've had hair problems for years and I can say that I've tried so many products and only this one is the real deal after a week of using this product I saw the difference my hair almost stop falling and I see a lot of new hair on my scalp!
Bette from Fort Worth, TX
I don't really notice that it does anything. i wanted a product that would make my hair feel and look thicker. I do not notice anything different.
Laura B from Hutchinson, KS
Since I began using this product several years ago, my hair feels stronger, thicker and healthier.
Sherry from Mi
Too expensive returned
Ronnie from Enumclaw, Wa
Everyday after the shower.
Dimps55 from Old Saybrook CT
Hairdresser had used on my hair and for once it looked thicker..The price made me think but was 25% off. I am so pleased with this product..Usually when I use don't get same results but not this time..It's a winner.
Jaybird from Redmond, WA
Having very fine hair, I was looking for a product that would give my hair volume and texture. This product doesn't do that. I used it for several days and used a generous amount and my hair behaved as though I hadn't used a product at all.