Amazon.com : Alpecin C1 Caffeine Shampoo, 8.45 fl oz, Caffeine Shampoo Cleanses the Scalp to Promote Natural Hair Growth, Leaves Hair Feeling Thicker and Stronger : Beauty & Personal Care
Alpecin Caffeine Shampoo C1 Black Edition, Men's Natural Hair Growth Shampoo for Thinning Hair with Niacin, Menthol, and Castor Oil, 8.45 fl. oz. - Walmart.com
2xPacks Alpecin Caffeine Shampoo C1 Black Edition - 500 ml – Eurodeal.shop
Alpecin Caffeine Shampoo C1 - Original Formula For All Men – Alpecin USA