Onion Shampoo Stress, pollution & unhealthy lifestyle choices can lead to many hair troubles, hair fall being the most common one. Mamaearth's onion hair shampoo helps you combat that. Onion oil, rich in sulphur, potassium & reduces hair fall & accelerates hair growth. Plant keratin replenishes and strengthens hair, repairing its natural structure. It makes hair smooth & frizz-free. Safe for coloured & chemically treated hair, This shampoo is free of harmful chemicals & toxins such as sulphates, silicones, parabens, mineral oil & dyes. Men and women above 15 years of age can use this shampoo.