As Dr. Woolery-Lloyd explains, the most common cause of hair thinning in men is androgenic alopecia (aka male pattern baldness) and it’s typically genetic. However, even if you’re genetically predisposed to balding you can still fight this off by blocking a hormone known as dihydrotestosterone, or DHT. “DHT is a byproduct of testosterone and it binds to receptors in the hair follicles causing them to shrink and produce thinner, weaker hair over time,” Dr. Woolery-Lloyd says.

DS Labs’ Revita Shampoo is formulated with a collection of DHT blockers, including caffeine, biotin, antioxidants, and amino acids to help battle any incoming hair thinness. Of all the shampoos we tested, this is the one we saw the most immediate and significant improvement to our hair thickness and volume. It even made our hair feel soft—although not too squeaky—similar to some of the more high-end daily shampoos we’ve tested.

Its ingredients also include wheat protein, which Dr. Woolery-Lloyd confirms will help it appear fuller, as well as glycerin, a humectant that attracts moisture to the hair to help it stay hydrated and healthy overall.

Dr. Woolery-Lloyd adds, “DS Labs Revita shampoo is very effective and highly recommended by dermatology leaders in hair research.” She also notes that the included ingredient of taurine helps promote keratin production. This is in addition to the formula being 100 percent sulfate-free and paraben-free.

Simply put, there is no better option for thinning hair than the DS Labs Revita Shampoo.

Read More: Best Shampoos for Men