California Naturals Men's Re:GRO Anti-Thinning Shampoo promotes thicker, fuller hair with every wash. This shampoo strengthens strands and supports scalp health with a stimulating blend of biotin, black cumin seed, rosemary oil, and saw palmetto. It nourishes follicles, reduces flakes, and helps block DHT, reducing breakage. The 99% naturally derived, vegan formula is sulfate-free, paraben-free, and features a "Torn Herbs" food-grade fragrance.