• Shampoo designed to reduce hair loss caused by breakage, allowing it to grow long and strong. • Formula enriched with biotin and strengthening proteins, with a Pro-V nutrient concentration three times higher than other shampoos. • Developed by experts with 75 years of scientific research, certified by the Swiss Vitamin Institute. • Ideal for dry, damaged, and breakage-prone hair. • For best results, use together with the conditioner, leave-in cream, and hair treatment from the Strength Growth line. • Product volume: 1 liter.