Garnier Ultra Doux Black Charcoal & Nigella Seed Oil Shampoo is a purifying and shine‑boosting formula that combines charcoal—known for its detoxifying properties—with Nigella seed oil (black seed), prized for soothing the scalp and restoring hair’s natural luster. Its creamy, lightweight texture gently removes excess oil, impurities, and buildup without weighing hair down, leaving it clean, refreshed, and visibly shiny