Your shampoo has been lying to you. Product buildup, dead skin, and DHT residue sitting on the scalp block follicles and quietly kill hair growth — this charcoal-infused scrub clears all of it in one weekly use. Dermatologists call it the single most impactful addition to any hair care routine; sulfate-free, safe for colour-treated hair, and most users report measurably thicker growth within six weeks.