As I enter my 30s, I’ve become more aware of signs of aging not just on my face but also on my scalp. With thinning hair becoming a concern, I delved into research to find the best shampoos tailored for this issue. Consulting with dermatologists, hairstylists, trichologists, and contributors from esteemed publications like Glamour, I gained valuable insights into the world of hair loss solutions.
"Shampoos formulated for thinning hair are designed to combat hair loss and promote regrowth. Some also focus on enhancing hair thickness," explains Gretchen Friese, a certified trichologist at BosleyMD. These specialized shampoos work to increase the diameter of each strand, thereby improving overall hair density and volume. They may also boost circulation and blood flow to the follicles, stimulating growth. The ideal thinning hair shampoos cleanse the scalp gently without causing build-up, which can lead to decreased fullness.
While these hair growth products may not fully restore your once-luscious locks of your early 20s, they do contribute to a healthier and happier scalp, resulting in a fuller, more voluminous, and better-moisturized mane. Below, you’ll find a curated list of our favorite shampoos for thinning hair, rigorously tested by our team, including myself.
Top Shampoos for Thinning Hair
How we tested shampoo for thinning hair
After compiling a roster of dermatologist-recommended and bestselling thinning hair shampoos, we allocated products to individual reviewers for testing. Each reviewer used their assigned shampoo consistently for at least six weeks, as experts suggest this duration is necessary to observe any noticeable effects.
Reviewers were tasked with following the product’s instructions meticulously and evaluating aspects like hair shedding (did it decrease after regular use?), fullness, density (especially along the hairline), fragrance, lathering capability, cleansing efficacy, and overall value for money. Their feedback was pivotal in categorizing and determining the inclusion of each shampoo on our list.
Nizoral Anti Dandruff Shampoo with 1% Ketoconazole
Original image by Glamour senior commerce editor Jenifer Calle
What we like: Contains proven ingredient that fights hair loss; lathers easily; affordable
What could improve: Not suitable for extreme cases of dandruff; can be drying
Dandruff, a form of dermatitis, leads to an overgrowth of yeast on the scalp, resulting in flaking, inflammation, and hair loss. Nizoral shampoo’s key ingredient is ketoconazole, an antifungal compound that curbs this yeast overgrowth. Studies indicate that ketoconazole inhibits the enzyme responsible for converting testosterone to dihydrotestosterone (DHT), a hormone known to attack hair follicles. "Excess DHT is linked to androgenetic alopecia, commonly known as male and female pattern hair loss," explains board-certified dermatologist Brooke Jeffy, MD. Dr. Connie Yang, another board-certified dermatologist, recommends Nizoral as an effective, accessible option for milder cases of dry, flaky scalps. "We often prescribe a prescription version with 2% ketoconazole in the office, in contrast to the over-the-counter 1% version."
Tester review: Nizoral has been a game-changer for my flaky scalp. The shampoo offers a refreshing, medicinal scent and a cooling sensation upon application. It lathers superbly, leaving my hair feeling thoroughly cleansed. Since incorporating it into my routine last summer, I’ve gone through three bottles. I use it weekly, following up with a scalp serum to combat any potential stripping. – Jenifer Calle, Glamour senior shopping editor
Kerastase Densifique Thickening Shampoo for Thinning Hair
Original image by Glamour commerce writer Alanna Martine Kilkeary
What we like: Improves fullness and strength; doesn’t weigh down hair with residue
What could improve: Strong scent; product is tough to dispense from bottle; pricey
Kerastase, known for its hair growth masks and shampoos, presents this thickening shampoo enriched with hyaluronic acid for deep hydration and scalp ecosystem restoration, as per board-certified dermatologist Melanie Palm, MD. Gluco-peptides in the formula repair and enhance hair density. Our tester noted voluminous, thick hair after nearly a year of consistent use, emphasizing a clean, buildup-free outcome.
Tester review: This shampoo was a lifesaver during a phase of thinning hair around my crown. The formula’s consistency is thick, making it easy to distribute throughout the hair. After letting it sit for about five minutes during testing, I noticed increased fullness in previously sparse areas. My hair felt smoother, bouncier, and softer overall, without any weighed-down sensation. Although the scent is potent, I’d recommend this to anyone seeking a quick fix for thinning hair. – Alanna Martine Kilkeary, Glamour commerce writer
These shampoos offer a holistic approach to addressing thinning hair, incorporating unique ingredients and targeted solutions to combat hair loss and promote healthier, more robust hair growth. Whether you’re dealing with mild or severe thinning, finding the right shampoo can significantly impact the health and vitality of your hair. Discover a newfound confidence and a rejuvenated mane with these top picks for thinning hair solutions.