I’m spring cleaning my beauty regimen, starting in the hair care department. To ensure I only treat my mane to the best of the best, I’m honing in on formulas with expert stamps of approval. That’s why I’m replacing products in my routine with those from Dr. Groot, the K-beauty brand that celebrity hairstylist Davey Matthew previously recommended I try. Thanks to Amazon’s spring sale, the prices on several fan-favorite Dr. Groot gems have been slashed—including this Hair Thickening Shampoo he called “great for growth.” 

The under-$25 hair care hero is formulated with caffeine to “deliver nutrients to your follicles,” along with rosemary oil to “regulate scalp health, reduce inflammation, and encourage blood flow,” according to Matthew. As a result, the fortifying shampoo promotes healthy, strong strands, impressive growth, and a thick, full feel. To experience its stylist-backed magic yourself, regularly use the revitalizing shampoo and prepare to spot growth in just two weeks, per the brand. 

Dr. Groot Hair Thickening Shampoo

Hair stylists and I certainly aren’t the only ones reaching for the Dr. Groot Hair Thickening Shampoo. The product is among Amazon’s top three best-selling hair growth shampoos, and more than 7,000 people purchased it in the past month alone, according to the retailer. One fan facing “hair thinning and loss” noticed “more hair growth” and “tons of baby strands” since adding the currently-discounted shampoo to their shower regimen. A second reviewer even deemed it “magic” since it effectively reduces hair loss while delivering “great bounce” and volume.

Shoppers with all hair types swear by the K-beauty hair secret. Someone with “dry and fine” strands confirmed the shampoo “does wonders” for their mane. Plus, another customer had tresses that were “damaged and losing volume,” but the formula “healed their hair” within two washes. Still on the fence? Take it from one shopper who assured the product is “worth the price” considering it made their scalp “feel so much cleaner,” and their strands “bouncy, less frizzy,” and “stronger.” I’m sold!

Run to score the Dr. Groot Hair Thickening Shampoo on sale now for $22, and shop more from the brand at Amazon, below. 

Miracle In-Shower Treatment

Hair Thickening Conditioner

Hair Thickening Serum