Collagen constitutes ca. 25% of the body structure and participates in vital functions of almost all systems, organs, and tissues. With age, the organism loses the capacity for collagen reconstruction. Collagen synthesis disorders occur also in situations of its intense destruction, with permanent overloads (physical activity, high-performance sports) and autoimmune diseases (osteoarthritis). Collagen metabolism impairment is manifested not only by dysfunctions within the musculoskeletal system (rigidity, periarticular pain) but also within the tissues and organs for which collagen and similar substances play strategic functions. Collagen deficiency leads to senile body changes: wrinkles, cellulite, skin dryness, nail and hair lustrelessness, and hunched silhouette. The most dangerous for health and life are immune system disorders as collagen plays a very important role in immune defence – it limits the penetration and dissemination of pathogenic factors – environmental toxins, micro-organisms, and cancer cells. All these symptoms can be prevented or delayed by collagen supplementation. OLIMP KOLAGEN ACTIV PLUS tablets is a product based on easily assimilated collagen hydrolysate with added calcium, magnesium, vitamins C and B6, limiting the decomposition and enhancing the reconstruction of collagen structures of the body, intended for supplementation of everyday diet. The product is recommended for persons exposed to overtaxing of the musculoskeletal system, performing heavy physical work, undergoing physical rehabilitation, for recreational athletes and high-performance athletes, as a prophylaxis of musculoskeletal system disorders, preventing the development of degenerative arthritis, osteoporosis, fractures, and sports traumas, for convalescents after surgical procedures, sports traumas, and fractures, in the period of intense growth – for children aged 6 years and more and adolescents, for the improvement of condition of skin, nails, hair, for all people in the second half of their life, in order to delay the changes in appearance and health associated with the ageing process. In order to increase the effectiveness of action, particularly in musculoskeletal system dysfunctions, we propose the combined use of OLIMP KOLAGEN ACTIV PLUS and OLIMP OSTEOBLOCK. Revolutionary formula for strengthening joints and tendons, excellent as an addition to dietary programmes at mass and strength building.