--- product_id: 739831813 title: "Award-Winning Hair Thickening Serum for Hair Loss, Thinning Hair, Korean Hair Care, Scalp Treatment, Clinically Tested, Thicker, Reduces Oil, Roll On" brand: "dr. groot" price: "€ 82.74" currency: EUR in_stock: true reviews_count: 5 category: "Dr. Groot" url: https://www.desertcart.hr/products/739831813-award-winning-hair-thickening-serum-for-hair-loss-thinning-hair store_origin: HR region: Croatia --- # 30% improved scalp hydration 82.2% less hair breakage in 2 weeks 46.4% reduction in scalp oil Award-Winning Hair Thickening Serum for Hair Loss, Thinning Hair, Korean Hair Care, Scalp Treatment, Clinically Tested, Thicker, Reduces Oil, Roll On **Brand:** dr. groot **Price:** € 82.74 **Availability:** ✅ In Stock ## Summary > 🌿 Unlock your scalp’s full potential—because your hair deserves the VIP treatment! ## Quick Answers - **What is this?** Award-Winning Hair Thickening Serum for Hair Loss, Thinning Hair, Korean Hair Care, Scalp Treatment, Clinically Tested, Thicker, Reduces Oil, Roll On by dr. groot - **How much does it cost?** € 82.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/739831813-award-winning-hair-thickening-serum-for-hair-loss-thinning-hair) ## Best For - dr. groot enthusiasts ## Why This Product - Trusted dr. groot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Roll-On Design:** Metal tip applicator delivers targeted scalp care with zero mess or residue. - • **Clinically Proven Results:** Backed by science, reduces hair loss due to breakage by over 80% in just 14 days. - • **Clean & Potent Ingredients:** Formulated with biotin, caffeine, niacinamide, and salicylic acid—free from parabens, silicones, sulfates, and gluten. - • **Multi-Dimensional Scalp Care:** Exfoliates, cleanses, moisturizes, and balances oil for thicker, healthier-looking hair. - • **Refreshing Lightweight Formula:** Menthol-infused watery gel cools and hydrates without weighing hair down. ## Overview Dr. Groot Hair Thickening Serum is a clinically tested, Korean-inspired scalp treatment that reduces hair breakage by 82.2%, improves scalp hydration by 30%, and cuts excess oil by 46.4%. Featuring a precision metal-tip roll-on and a refreshing menthol gel, it nourishes and revitalizes thinning hair with a clean, potent formula free from harsh chemicals. ## Description An innovative serum treats your scalp with the same care you give to your facial skin. The roll-on design features a unique metal tip for precise spot care and a menthol-infused, watery gel texture for a refreshing, lightweight, and non-sticky finish. Enjoy total scalp care that nourishes your scalp and promotes thicker, fuller, and healthier-looking hair. Review: 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! Review: 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. ## Features - CLINICALLY PROVEN: In 2 Weeks:Reduces hair loss due to breakage by 82.2%*, Reduces scalp redness, Reduces scalp moisture loss by 39.52%, Improves scalp hydration by 30%. Reduces scalp oil by 46.42% - This innovative serum treats your scalp with care like skincare. Its roll-on design with a metal tip offers precise spot care, while the menthol-infused watery gel provides a refreshing, lightweight finish. Nourish your scalp and reduce hairloss due to breakage for fuller, thicker, healthier-looking hair. - EXFOLIATES, CLEANSES, AND MOISTURIZES AND HELPS SUPPORT HEALTHY HAIR. Formulated with biotin, rosemary leaf extract, salicylic acid, panthenol, niacinamide, caffeine and formulated without parabens, silicones, sulfates and gluten. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DK22L979 | | Active Ingredients | salicylic_acid | | Age Range Description | Adult | | Age range (description) | Adult | | Best Sellers Rank | #1,534 in Beauty ( See Top 100 in Beauty ) #2 in Scalp Treatments | | Brand | Dr. Groot | | Brand Name | Dr. Groot | | Customer Reviews | 3.0 out of 5 stars 264 Reviews | | Hair Type | Thinning | | Item Form | Serum | | Item Volume | 0.5 Fluid Ounces | | Item Weight | 0.06 Kilograms | | Item form | Serum | | Item weight | 0.06 Kilograms | | Manufacturer | Dr. Groot | | Number of Items | 1 | | Recommended Uses For Product | Hair Thickening, Reduces Oil, Strengthening | | Scent | rosemary | | Scent Name | rosemary | | UPC | 803954310108 | ## Product Details - **Active Ingredients:** salicylic_acid - **Brand:** Dr. Groot - **Item form:** Serum - **Item weight:** 0.06 Kilograms - **Scent:** rosemary ## Images ![Award-Winning Hair Thickening Serum for Hair Loss, Thinning Hair, Korean Hair Care, Scalp Treatment, Clinically Tested, Thicker, Reduces Oil, Roll On - Image 1](https://m.media-amazon.com/images/I/51T3WY2TQzL.jpg) ## Questions & Answers **Q: How does this serum help with hair loss?** A: It reduces hair loss due to breakage by 82.2% in just two weeks. **Q: What is the texture of the serum?** A: The serum has a menthol-infused, watery gel texture that is refreshing, lightweight, and non-sticky. **Q: How is the serum applied?** A: It features a roll-on design with a unique metal tip for precise spot care on the scalp. **Q: Does it improve scalp hydration?** A: Yes, it improves scalp hydration by 30% and reduces moisture loss by 39.52%. **Q: Can this serum reduce scalp redness?** A: Yes, it effectively reduces scalp redness, promoting a healthier appearance. ## Customer Reviews ### ⭐ Barely anything in it! *by B***E on 19 July 2026* 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! ### ⭐⭐⭐⭐⭐ A family favorite, especially for fine hair *by N***A on 4 May 2026* 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. ### ⭐ Great quality but Not enough product. Super sad that it ran out after my 3rd or 4th use. *by T***N on 28 February 2026* 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. ## Frequently Bought Together - Dr. Groot Hair Thickening Serum For Hair loss, Thinning Hair, Korean Hair Care, Scalp Treatment, Clinically Tested, Thicker Hair, Reduces Oil, Roll On - Dr. Groot Miracle in Shower Treatment for Hair Loss, Korean Hair Care, 5 Seconds to Smooth Hair, Rosemary Oil for Healthier-Looking Hair, Hair Rinse, Moisturizing Treatment,Scalp Revitalizing Solution - Dr. Groot Hair Thickening Shampoo, Korean Hair Care with Biotin, Rosemary Oil to Help Volumize Thinning, Damaged Hair, Hydrate Hair and Scalp, Biotin Shampoo, Scalp Revitalizing Solution --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/739831813-award-winning-hair-thickening-serum-for-hair-loss-thinning-hair](https://www.desertcart.hr/products/739831813-award-winning-hair-thickening-serum-for-hair-loss-thinning-hair) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-13*