Size 3.38 oz|
Store & Pickup Availability
Nioxin Diamax Advanced, Hair Thickening & Breakage Protection Treatment For Thinning Hair is engineered to thicken existing hair strands instantly. Anti-breakage technology strengthens hair resilience, so hair can grow longer.
How to Use
Shipping & Coupon Restrictions
Shipping Restrictions : This item cannot be shipped via air.
Rated 4.35 out of 5 stars
I'm in my 50's and my hair is beginning to thin in certain areas. I've always had very thick, but fine, hair so I've never had to deal with thinning hair. This product actually made my hair feel thicker from the very beginning in the areas I was concerned about. It made my hair feel denser yet soft to the touch. Use both morning and at night - on damp and dry hair. Just rub it in and let it dry on your scalp.
The product information states that you will be able to see the difference after 1 use. I have used it 5 times and still cannot see any difference.
The product is easy to use, does not burn or cause any other scalp irritation but I also have not seen any evidence of it thickening my hair
TheCatsMew from Los Angeles
I've been using this for years! It is my secret to big thick hair. I apply this to my roots after I wash my hair and then I blow dry my hair up and over. Does not leave a residue, just naturally big and beautiful hair.
Unhappy User from MO
Nioxin was highly recommended to me and was supposed to assist with hair growth. However, after purchasing the Step 6 kit, the Diamax Advanced, and the Minoxidil drops, my hair was more dry and broken than I had started out with. I had not even gone through 1/2 the bottles of shampoo and conditioner and the Diamax drops and Minoxidil drops were more than 1/2 gone. In less than 2 weeks time. They should last much longer than that! Especially with not washing every day! Ulta would not even follow through with their return policy and refund my money. I am NOT impressed. I purchased "It's a 10" products from "It's a 10" website and the products have SAVED my hair! It's slowly coming back and was looking healthy almost immediately. Never had issues returning anything anywhere else. Frustrated with the quality of the 2 Nioxin products and the way Ulta handled it.
Kathryn F. from Massachusetts
Everyone's hair is different, so while what may work for me may not work for someone else. With that being said, this stuff worked wonders for my hair. I have been trying to heal my hair after a whole year of bleaching it, and it has been a struggle. I've tried so many products but this one actually makes my hair feel thicker and healthier! It's expensive but I think it's worth it.
Sara from LA
All of the positive reviews of this product baffle me. I have had thinning hair due to stress since Covid. I was using the Ordinary Multi-Peptide serum which really helped my hairline, but got this product for free through Octoly so I decided to try it. This made my hairline SO much worse than it already was!!!! I used this as directed but I got way more breakage in the shower, and any place I applied this was drastically thinner. Maybe I just had a bad reaction to this, but I seriously would NOT recommend this.
ldmcq from Arizona
I use the Nioxin System 4, though my hair is naturally grey and not colored, after shampoo and conditioning, I apply the Diamax Advanced at the roots, massage, then add Nioxin foaming mousse. Follow with blow dry. I no longer have to use a curling iron / straight iron. It's heaven! I think if you were to use Diamax Advanced with other products outside of Nioxin, you may not get the result that I'm seeing - super fine and fairly thin hair that looks full, shiny and amazing. ;-) I finish with Kenra's Volume Spray 25 (and not much of it is needed). Highly recommend!
Beauty enthusiast from Florida
I bought it during 21 days sale. I felt in love at the first use. I have pass shoulder medium thick natural black hair. I lost lots of hair recently so I need something topical to thicken my hair without clogging roots or greasy and my hair get oily quickly. I bought this after reading many reviews. I don't use all over my hair, after towel dry and partially air dry my hair (or just towel dry), I divide my hair from middle, sprit little/not full pump close to hair line right in the middle and one toward top of my head. Now from middle to my ear from each side, I divide 2 more row evenly and sprit with the same manor (1 front, 1 on the side toward the back). Then I message it in, I also fluff my hair from side to side to give it some air and loosing up the hair after message it in. Now I follow with the rest of my routine: heat protection/leave in condition, hair oil from mid length toward ends. I can leave air dry or blow straight on high speed with low heat. My hair turn out so soft (I have tried many things, nothing make my hair this soft), smooth and fluff. It did add little volume to where I sprit it but amazingly the hold head is soft. So only sprit on where you need volume, not the whole head then it will last much longer. Some said it dries out their scalp but not for me because my head sweat and get oily quickly (wash hair daily). My scalp and hair stay clean and soft longer than before. For helping with falling out, I didn't change anything except at the same time start using this, in the shower, I rinse my hair after conditioning with cold water to close the roots. My hair fall out extremely less now from using this and washing hair with cool water. I hope this help. I got it during 1/2 sale so I don't feel so bad if it doesn't work. I am glad it works!
Lala from South Carolina
Used for the first time & instantly added volume! From roots to ends. I have tried so many products for my shoulder length fine thin hair & this by far is the best. I have used the shampoos only & are great as well. I dont have a lot of hair lose just breakage on the ends & this also did a great job for that as well!!! Well worth the money & only used a dime size.
Hair from San Francisco Bay Area
I bought this at a discount store to try it. I have long hair and it is really falling out. This product reduced the breakage. I am 72 and female
Concerned chemist from Australia
Really enjoy the whole line of nioxin products however when this came to me it doesn't work how it should. The product doesnt thicken but clumps up in gel like consistency throughout my hair and just feels like I have a bad batch. I had high hopes for this product but I doubt I will be risking it again.
Ethan from Australia
Apple Jacks Girl from Holly Springs, Ga
First time adding this to my other Nixon products, throughly impressed
Lvrofpretty from Carson City NV
At first I saw results in it giving my hair volume. But.. my scalp go do dried out and causing it to flake that it's not worth the subtle volume
Mona Mi from Chicago, Illinois suburbs
I have super fine, limp hair. But you'd never know it after I use this product!! Bouncy, healthy, beautiful hair!! It's worth every penny!! Fantastic product and I highly recommend it!!
Kim from Columbus Georgia
Georgia girl from Atlanta, Georgia
I was introduced to this product by my hair person who strongly recommended it.
dcwilliams0857 from C springs
I started having a big dandruff problem. I also suffered from losing a lot of hair and thinning. My hair is already really fine, thin, and gets greasy after a short amount of time. My wife suggested nioxin so I gave in and gave it a go. I first went to the website and took the assessment to find out which kit would work for me. I got the 3 starter kit with the shampoo, conditioner, and scalp treatment. I also got the diamax advance. I honestly don't know which product is making the difference, but my hair has never felt so healthy. My dandruff is all but gone. I am going days without needing to wash my hair. I was on day 3 of not washing and it felt as if it was day 1. NEVER used to be like that. I have honestly only used my nioxin products only 5 times and I'm having this much success already. Super happy with my purchase. I just hope that my hair doesn't get used to it and plateau like some experiences I have had with other products. The fact that the difference this product is making is so quick and astounding gives me hope that it's the real deal.
Phrance from Laredo, TX
My hair had been falling out due to a thyroid condition, menopause and medications. This is my third bottle. I use it every day along with rogain and I have a bunch of 1 inch hairs growing in
Carola from Silver Spring,
Incredibly amazing product.
MD Beauty from Chicago, IL
I use this to give my fine hair the appearance of added density and volume, and it works immediately after blow drying! Added benefits is make your hair stronger...love this product ❤️
Scottis from CO
I have very fine hair and this product, while expensive, is worth it to get the body I now get and yet it leaves my hair soft and smooth.
Gunnysmrs from Texas
I was skeptical. Boy, was I wrong! I use this in conjunction with Nioxin shampoo and I really notice a difference in my hair since adding Diamax! Doesn't dry out my hair nor make it greasy.
SgtArmstrongsMrs from East Texas
I like the product so far but I haven't used it nearly long enough to know if it helps with my temple area thinning. It smells good and doesn't make my hair greasy or sticky.
Leo from Fargo
After I wash and towel dry my hair I apply about three pumps to my scalp; I then comb it through my hair and finish styling my hair. This product makes my hair look and feel Fuller.
Bev from Fresno Ca
Nioxin gave fullness to my thinning flat hair. It is not going to give extreme fullness and body but you will see a considerable differences. I am very pleased with the results.
I use after I wash and towel dry my hair. I then blow dry my hair like I normally would. This product increases the thickness of my hair. It gives me more fullness and body.