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Amazon.com : Alpecin C1 Caffeine Shampoo 12.68 fl oz, Promote Natural Hair Growth and Thickness, Energizes Hair and Scalp, Leaves Hair Feeling Stronger : Beauty & Personal Care
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Amazon.com : Alpecin C1 Caffeine Shampoo, 8.45 fl oz (Pack of 2) Men's Natural Hair Growth Shampoo for Thinning Hair with Niacin and Castor Oil : Beauty & Personal Care
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