Hair, skin and nail support. Eat like your life depends on it I created Primal Kitchen because I believe flavorful food uplifts and empowers us. Made from real ingredients without compromise, our products add variety and flavor so every single bite is delicious. Never settle: make every meal exciting. - Mark Sisson Founder. Supports healthy hair, skin & nails: Collagen is one of the most abundant proteins in the human body. Natural collagen production declines with age.