

🌿 Unlock fuller, thicker hair with science and style.
Dr. Groot Hair Thickening Serum is a clinically tested, award-winning Korean scalp treatment that reduces hair breakage by 82.2% in 2 weeks, improves scalp hydration by 30%, and cuts scalp oil by 46.42%. Featuring a precision roll-on metal tip and a refreshing menthol gel, it nourishes and strengthens hair with a clean formula free from parabens and sulfates—perfect for all hair types, including color-treated.














| ASIN | B0DK22L979 |
| Active Ingredients | salicylic_acid |
| Best Sellers Rank | #1,726 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #16 in Hair Regrowth Treatments |
| Brand | Dr. Groot |
| Brand Name | Dr. Groot |
| Customer Reviews | 3.1 out of 5 stars 193 Reviews |
| Hair Type | All |
| Item Form | Gel |
| Item Volume | 0.5 Fluid Ounces |
| Manufacturer | Dr. Groot |
| Number of Items | 1 |
| Recommended Uses For Product | Hair Thickening, Reduces Oil, Strengthening |
| UPC | 803954310108 |
A**C
Awesome product.
I have Lupus and RA, this product absolutely transformed my hair. So much of my hair fell out and it wasn’t growing. Not only is it growing. But my hair feels fuller. I now use it all the time along with the shampoo and conditioner.
A**R
Didn’t last long
I used this product for a week and it either ran out or isn’t working anymore as nothing comes out. I did not use a lot and I am so disappointed it ran out because I was hoping this would do the trick
T**A
Good
LOVE THIS PRODUCT. HAS MADE MY HAIR GROW AGAIN
C**L
Waste of money
This thing comes entirely basically EMPTY!!! Used it maybe a few times and it was out GONE!!!
A**E
Good
Good
D**E
Dont buy the Serum
I bought this one, shampoo , conditioner and the scalp treatment. This serum is expensive for .5oz you cant even tell if it effective brcause you dont have enough. Among all the four products I only like the scalp treatment, the shampoo and conditioner makes my scalp flaky unless I used the scalp treatment. I can tell though it stop my haiross esp when my hair gets long.
H**H
Runs out too fast
I have only had the product for two weeks (and not used it even once every day) and it is EMPTY. So it’s hard to even tell if it even works on your hair when it doesn’t last long enough to even try to find out.
R**C
Only a half/.5 ounce of serum in the roller!
I like the product itself but I was disappointed to discover there is only a half/.5 ounce of serum in the roller, which, unfortunately, only lasted about 2 weeks. I bought this serum along with both the clay & thickening shampoo’s, the shower treatment & scalp relief tonic, I like all of them, and was really looking forward to the results after using them together faithfully for at least 3 months. While I like the roller application & serum’s consistency which tingles my scalp a little, making me think it’s working/stimulating & doesn’t leave my hair oily or sticky, I can’t justify buying at 2-3 serum rollers per month, spending $50-75 monthly for just the serum, especially since I already spent about $100 for the other 4 products in the Dr. Groot thickening set.
Trustpilot
2 months ago
2 weeks ago