• Prevents hair loss with its unique formula that combines caffeine, zinc, and niacin, supporting natural hair growth. • Alpecin is the leading brand in Germany for preventing hair loss in men, with scientifically proven effectiveness. • Stimulates hair roots during washing. Caffeine penetrates hair follicles in just 120 seconds, strengthening fine and weakened hair. • Silicone-free treatment for easy styling, avoiding the use of softening silicones. • For best results, use the shampoo daily, leaving it on the scalp for at least 2 minutes before rinsing thoroughly. • Product dimensions: 9.6 cm wide, 23 cm high, 6 cm long.