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Keratins are a group of tough, fibrous proteins that help maintain healthy joints and support skin, hair and nails. Keratins deliver an exceptionally high content of the amino acid cysteine, which is in itself an abundant source of sulfur molecules that nourish and strengthen cartilage tissues.
- Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.