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Amazon.com: Vitamins Keratin Shampoo Hair Treatment - Biotin and Collagen Protein with Castor Oil for Curly Wavy and Straight Hair - Sulfate Free Product for Dry Damaged or Color Treated Hair :
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Shampoo's 'bad' ingredients: the truth about keratin, parabens, silicones and sulphates and what they really do when they're in your hair | South China Morning Post
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Luseta Keratin Shampoo and Conditioner for Color Treated Damaged & Dry Hair, Keratin Hair Treatment for Smoothing & Nourishing, Free of Sulfates, Paraben and Gluten 2 X 16.9Oz Keratin Smooth 16.9 Fl
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