Nioxin System 4 Cleanser Shampoo, 33.8 oz

I’ve been using the Nioxin System 4 Conditioner (paired with the matching shampoo) for a few weeks now, and the difference is impressive. My hair is color‑treated and has been thinning for a while—this lightly moisturizing formula feels gentle yet powerful. It leaves my hair feeling soft and manageable, without any heaviness or greasiness. The texture is lightweight, yet hydrating—from scalp to ends. It’s formulated with peppermint and wild mint oils that invigorate the scalp, while caffeine, niacinamide, and biotin help strengthen hair at the root and promote a healthier scalp environment. Since using it regularly, I've noticed less shed during brushing and shower drain buildup, which used to clog weekly—now it's only occasional. My hair feels thicker and fuller overall, although I didn’t expect a dramatic regrowth—more like restoration. It helped stop the progression of hair loss; not necessarily added growth.