Adding vodka to shampoo will not strengthen hair. Dr Ekansh Shekhar, dermatologist in Lucknow, explains ethanol strips natural oils, causing dryness, breakage, and scalp irritation. Hair keratin cannot be 'reinforced' externally. Proven solutions like zinc pyrithione shampoos and proper hydration are safer and clinically backed for scalp health, unlike vodka-based social media hacks.