Whether you keep a tub in your kitchen cupboard or need a sachet on the go, try the superior active collagen for enhanced fitness and joint support. This co-active nutrient formula contains vitamin C to aid collagen formation and healthy cartilage and manganese to support connective tissue function. Planet Paleo add other helpful compounds too: Celadrin is a patented blend of fatty acids that support healthy cell membranes throughout the body and promote flexibility and mobility. Glucosamine is a molecule used in the formation and repair of cartilage and other body tissues.