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🌿 Unlock your scalp’s full potential—because your hair deserves the VIP treatment.
Dr. Groot’s Award-Winning Hair Thickening Serum is a clinically tested, Korean-inspired scalp treatment designed to reduce hair loss by 82.2% due to breakage within two weeks. Featuring a precision roll-on applicator and a menthol-infused gel, it refreshes the scalp while improving hydration by 30% and reducing oiliness by 46.42%. Formulated with biotin, rosemary, salicylic acid, and caffeine, this paraben- and sulfate-free serum exfoliates, cleanses, and nourishes to promote visibly thicker, healthier hair.














| ASIN | B0DK22L979 |
| Active Ingredients | salicylic_acid |
| Best Sellers Rank | #2,393 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #18 in Hair Regrowth Treatments |
| Brand | Dr. Groot |
| Brand Name | Dr. Groot |
| Customer Reviews | 2.9 out of 5 stars 278 Reviews |
| Hair Type | All |
| Item Form | Gel |
| Item Volume | 0.5 fluid ounces |
| Item Weight | 0.06 kg |
| Manufacturer | Dr. Groot |
| Number of Items | 1 |
| Recommended Uses For Product | Hair Thickening, Reduces Oil, Strengthening |
| UPC | 803954310108 |
B**E
Barely anything in it!
Don’t be fooled by size!!! I never review things, but here I am. Listen to the other ppl saying it doesn’t last! Bc it doesn’t! I used this for 3 days! 3!!! It two small sections of my head-the front temple areas-morning and night. Went to use it this morning-completely gone. It did not leak. I have tried everything to get a drop out-nothing. It gave me one tiny pump and then nothing but dry. I really liked it bc it didn’t turn that section of my hair oily like others, and it didn’t leave a residue. But the amount of money it costs, for it to not even last a week, is extremely frustrating! I can’t imagine ppl using this long term!
N**A
A family favorite, especially for fine hair
I have fine hair, and had significant thinning around my temples due to styling and genetics. I've have tried a number of different products and this works the best. In 1 month, I've grown at least 1-2 inches of baby hairs. Although some of the new hair is gray, a win's a win! I have other family members that use the same solution and have seen similar changes. I also use this with Dr. Groot's Hair Thickening Shampoo, and Miracle In-shower treatment. When I was using only the Hair Thickening Shampoo, I didn't see much of a difference. However, when I added this serum plus the Miracle In-Shower treatment I saw an improvement with hair growth. Just fyi, it may take longer than 2 weeks to see a change. I'm not sure how folks are out of solution after a few uses. I wear this solution once a day and its lasted me a month already - and I still have plenty left. Perhaps to get the most of the product, when it's not in use, make sure that the pen stands upright and that you ensure the button to pump the is turned off to avoid spilling.
T**N
Great quality but Not enough product. Super sad that it ran out after my 3rd or 4th use.
It didn’t even last me a week. I didnt over use it just a few pumps. From the three or four times that I used it seemed great and easy application but again it was out after my 3rd or 4th time using it, it was empty. I switched to lilyeve. I would’ve loved to continue using the product but because it ran out so quickly and the price for it.. I can’t. Maybe if the company reached out to rectify I would switch back. Not sure if that’s normal. Thought it would maybe last me like three weeks to a month. Super upset because I really enjoyed it at first.
E**G
5/5 stars
I have a widows peak that was thinning, and it was an insecurity of mine when I put my hair up. Started applying for 1-2 months, and already see results!! It is working a bit too well and making my peach fuzzies on my forehead a bit thicker…. But I’ll take that over thinning hair
H**L
Very less serum
It’s almost empty not much serum in there.
J**E
Too little product for the price
Very little product for the price, I was using it bi-weekly unlike daily like most recommend. If I had used it daily I would have been out of product by the end of a week. Also should add, I’m not using a lot of product either, I’m using it on one specific spot on my head. So using that little of product and using it only twice a week and it runs out after a couple uses? Maybe I got a bad tube, but I’m not going to spend near 30 dollars every couple weeks to see results.
J**S
Small amount but works great
Great product but the price is rough for the amount inside. I am purchasing again just wish it was cheaper or came with more.
A**I
It’s too little
It barley lasted for 1 1/2 weeks. The product says you’ll see a different within 2 weeks but I didn’t even last 2 weeks. I don’t think I’ll be buying it again since it runs out to quick.
Trustpilot
2 weeks ago
1 month ago