What Is Collagen Synthesis?
Collagen is the most abundant protein in the human body and forms the structural framework of the skin, tendons, ligaments and joint tissues.
In the skin, types I and III collagen provide firmness, elasticity and tensile strength—properties closely associated with a youthful appearance and healthy skin.
Collagen synthesis, the process through which new collagen is produced, depends directly on adequate oxygenation. Dermal fibroblasts require oxygen as an essential co-substrate for the synthesis of hydroxyproline, the amino acid that gives collagen its characteristic triple-helical structure.
From around the age of 25, collagen production begins to decline. The process is initially subtle but gradually leads to visible changes, including thinner skin, the development of wrinkles, loss of skin firmness and reduced elasticity.
Stimulating collagen synthesis through biological intervention is one of the most targeted approaches to addressing age-related degeneration of the skin.
Collagen Production
Collagen synthesis follows a tightly regulated biochemical pathway in which oxygen is required at several stages. The hydroxylation of proline and lysine—essential steps in maintaining the structural stability of the collagen molecule—depends on oxygen as a co-substrate.
Under hypoxic conditions, this pathway becomes impaired and the collagen produced may be structurally deficient.
Natural ageing is also accompanied by increased oxidative stress, which damages existing collagen fibres. It disrupts their organization, promotes cross-linking between them and makes them less elastic.
The antioxidant effects associated with hyperbaric oxygen therapy may help protect collagen fibres from this process, while increased tissue oxygenation actively supports the synthesis of new, structurally healthy collagen.
Aesthetic Studies
The relationship between oxygenation and collagen synthesis is one of the most consistently documented principles in wound-healing science and dermatology.
Studies have shown that hyperbaric oxygen therapy significantly increases tissue hydroxyproline concentrations, a direct marker of increased collagen synthesis, and improves the structural organization of collagen fibres.
In aesthetic studies, participants who completed courses of hyperbaric oxygen therapy demonstrated objectively measurable improvements in skin elasticity and dermal thickness, both of which directly reflect enhanced collagen production.
The Role of Hyperbaric Oxygen Therapy
In supporting collagen synthesis, hyperbaric oxygen therapy provides dermal fibroblasts with favorable biochemical conditions for efficient function: increased oxygen availability as a co-substrate for hydroxylation, reduced oxidative stress that helps protect newly synthesized collagen and improved cellular energy production that enables fibroblasts to perform more effectively.
The simultaneous improvement in skin microcirculation helps ensure that the amino acids and growth factors required for collagen production reach the dermis in sufficient quantities.
After the first 10 to 15 sessions, patients may begin to notice firmer, more elastic skin with an improved structure. A typical treatment course consists of 15 to 20 sessions and may be incorporated into a comprehensive aesthetic care programme.