How to Use Prozinc Shampoo? Poor sufficilent amount of Prozinc Shampoo onto on your palm, apply to wet hair,and lather, massaging in a circular mation for 2-3 minutes..Then rinse your hair with warm water.İt is recommended to use regularly. Help to regulate sebum secretion of scalp. Formulated with biotin to help prevent hair loss, and to promote regrowth of healthy hair. Suitable for dry hair. Suitable for everyday use.
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