

🌿 Unlock your hair’s full potential — don’t let thinning hold you back!
This 1oz Biotin Oil Serum by Hair Thickness Maximizer is a vegan, all-natural hair growth treatment designed to strengthen, hydrate, and protect thinning, dry hair. Formulated with biotin, vitamin E, and hydrolyzed proteins, it nourishes hair follicles and scalp without harsh chemicals or greasiness. Made in the USA under GMP standards, it’s ideal for men and women seeking healthier, thicker hair with a lightweight, fast-absorbing formula.








| ASIN | B07JLKCY2V |
| Best Sellers Rank | #103,881 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #1,254 in Hair Regrowth Treatments |
| Customer Reviews | 4.0 4.0 out of 5 stars (2,855) |
| Is Discontinued By Manufacturer | No |
| Manufacturer | Hair Thickness Maximizer |
| Product Dimensions | 1.65 x 1.73 x 5.12 inches; 1 ounces |
| UPC | 850066089316 |
M**H
absorbs well into scalp easy scent smooths hair works!
I'm having hormonal hair loss due to an imbalance but only in my 30s. My edges were coming off badly and my hairline was receding more and more with gobs of hair in my hands every time. This is my second time dealing with bald and thinning spots from hair loss. I've been using it off and on for about 2 months, and my edges are thickening back up pretty nicely. It won't be filled in 100% because when i lost hair back when i was 19 it never grew back in all the way. It's good to use on the hair itself to strengthen it and stop breakage. I take vitamins as well but i started to notice a bigger difference when I added this into the mix to focus on specific areas. My ponytails are shiny and thick and I will continue to use this to reduce my hair shedding and breakage. I apply 2-3 times a week, but can go a few weeks without it. Absorbs well and it's not greasy or smelly. I knocked my first bottle over 2 times and lost half the product, so I bought more. You can also add it to other products you use on your hair to maintain thickness and reduce breakage. The first few times i used i did get a headache, but it went away so test it for a bit first. I recommend it however.
G**L
Satisfied with this product
It's taken me almost a month to notice a difference, but I think that's to be expected because your hair just can't get magically get healthier and thicker right away with any product. We have well water and it has been damaging me and my daughter's hair big time! I use this twice a week (and even after a month I still have tons left, so it's worth the money) because you only put a few drops in various parts of your scalp (I also take a couple drops in my hand and rub my hands together and run it through the ends of my hair as well). There is no greasiness or build up. This is seriously the first product I have bought that doesn't make my hair greasy by the end of the day. It's like putting water on your hair. I have noticed my hair getting healthier, and it might be my imagination, but it seems to be growing faster too. It was at the same length for several months (which was why I bought this, my hair used to grow so fast and I was concerned that that didn't seem to be the case anymore), but now it seems to be growing again, lol. I will keep buying this product as it runs out.
D**D
Achieving a healthy scalp and hair
I have to go in the middle of rating this product as it's only been a week or so since receiving it and using it. I like the results so far because I feel that achieving the pH balance of our skin is essential for the best results. Research results: Achieving pH balance for your skin, scalp, and hair helps maintain moisture, prevents dryness and irritation, and supports overall health. A balanced pH can also protect against harmful bacteria and promote a healthy appearance, reducing issues like acne, dandruff, and frizz.
D**L
Great organic clean
Loved it and feels like it cleans my scalp better than regular shampoo! Also the bar last a good while and smells good as well!
A**J
Amazing bar soap!
The lather is amazing! My hair feels so soft after. I bought this plus supplements because I noticed a lot of thinning for my 35 year old self. I've noticed between the two I've had a lot less breakage. Will definitely buy again. Great value too!
G**R
Does not work
I have applied this daily to my eyebrows since Oct 20 2021.I have no thyroid and take levothyroxine.Its been 6 years and my hair on my head has thinned excessively for 3 years My eyebrows barely visible.I take collagen, d3,biotin,b12 daily and I have had no growth of scalp or eyebrow hair IM 57 menopause was 15 years ago so its not that Recent blood work I'm good at tsh t4 t3 levels Iron is good. So after apply this twice a day morning and night there is absolutely no new hair nothing grew in eyebrows and nothing changed except more fell out looking worse Wanted so bad to have this work 😫
J**L
Highly recommended!
It lathers really well and my hair falls out way less! I had almost given up on shampoo bars after trying several products from other brands—they made my hair feel stiff and caused a lot of hair loss. But this one is super gentle and soft, I love it! I bought a few different types and once I use them up, I’m definitely sticking with this one. I wanted to switch to shampoo bars for the planet, and now I finally can make the change completely!
T**0
Excellent product
I have been using this product for a couple of years, and it works wonders. I had hair loss because of Cancer and this has made my hair grow back beautifully. My daughter in law had thinning hair and no edges. I told her to start using it, and after eight months her hair is longer and she has hair growing on the edges. I give your product a Ten. Thank you. I have 3 more people using it because I recommended it.
O**A
Not sure if it worked or not
Trustpilot
3 weeks ago
1 month ago