4Flex Complex is a dietary supplement in capsule form intended to supplement the diet of adults. The formula combines collagen, vitamin C, vitamin D, manganese, and copper. 4Flex Complex – get to know the ingredients Collagen – This supplement contains UC- II® collagen, undenatured—meaning it retains its natural structure—sourced from chicken cartilage. It has an intact triple helix structure that is resistant to enzymes that digest peptide bonds. C – helps in the production of collagen to ensure the proper functioning of cartilage. Vitamin D – helps maintain healthy bones and proper muscle function. Manganese – contributes to the maintenance of healthy bones and helps in the proper formation of connective tissues. Copper – helps maintain the proper condition of connective tissues. Additionally, vitamin D and copper help maintain the proper functioning of the immune system. The beneficial effect resulting from the declared action occurs when consuming the recommended daily portion of the product, i.e. 1 capsule. A package containing 30 capsules allows you to supplement your diet with the active ingredients of the preparation for 1 month.