Collagen types – which one is the best?


There are many types of collagen. The difference between them lies in their structure and in the functions they are supposed to provide in the body. Thanks to this diversity, each type is adapted to the specific needs of our body, which allows it to maintain its properties and functions in tissues and organs. The different variants are usually identified by Roman numerals from 1 to 28, depending on their location and role in the body. Therefore, it is difficult to answer which type of collagen is the best, but in this article we will take a closer look at the three most popular varieties – type I, type II and type III.

What is collagen and why is it important for the body?

Collagen is a protein substance that plays a key role in connective tissue. It occupies a leading place among the proteins found in the human body, accounting for as much as about 30% of their total content. Collagen is found in a variety of tissues – skin, bones, joint cartilage, tendons, ligaments, muscles and blood vessels. Regular collagen supplementation has a beneficial effect on, among other things:

  • skin firmness and elasticity,
  • strong bones and joints,
  • beautiful and shiny hair,
  • strong nails.

Moreover, collagen plays an important role in the body by taking part in the wound healing process, protecting the body from oxidative stress, as well as regulating growth and supporting the immune system.

Type I collagen

It is estimated that type I collagen accounts for up to 90% of the total collagen content in the human body. It is a structural protein – it plays an important role in the structure of skin, bones, ligaments of tendons, as well as other connective tissues. Being the main component of the skin, it is responsible for its firmness, elasticity and ability to regenerate. When the production of this protein decreases with age, the skin loses elasticity and wrinkles appear on it. 

Type I collagen is also important for maintaining strong bones – its deficiency can lead to weakened bones, and this increases the risk of fractures and can cause osteoporosis. What’s more, type I collagen strengthens joints, so it helps prevent the development of diseases such as arthritis. Because of its unique properties, type 1 collagen has for years been a popular ingredient in dietary supplements and cosmetics that are designed to strengthen bones and joints, improve skin condition and retard the aging process.

Type II collagen

Type II collagen is the main building block of joint cartilage, making up to 50-60% of its mass. It plays a key role in ensuring the elasticity of joint cartilage, and its deficiency in the body can lead to degeneration of this tissue and joint diseases. One of these can be osteoarthrosis, which causes pain, stiffness, mobility limits and joint discomfort. Supplementation with type II collagen helps reduce these symptoms, which is why it is recommended not only for the elderly, but also for anyone with an active lifestyle, including athletes who are exposed to heavy joint stress.

Type III collagen

Constitutes about 10-15% of all collagen proteins in the body. It is found primarily in blood vessels, skin and smooth muscle. It is particularly important for the normal development of fetuses and infants, as it is a major component of the extracellular matrix in the skin and internal organs. The role of type III collagen in the body is mainly to maintain the elasticity and resilience of the tissues in which it is found. It is important for the condition of the skin, as it ensures its firmness, but also for the health of blood vessels, where it takes care of their elasticity. 

Regular use of supplements with type III collagen supports the condition of the skin and has a positive effect on the regenerative processes taking place in the body. Type III collagen can also have a positive effect on the digestive system and help reduce the symptoms of irritable bowel syndrome.

Other types of collagen

Collagen is a protein found in the body in different types, the most important of which are collagen types I, II and III. The others (IV to XXIX) are present in minor amounts, but are still important for the proper functioning of the body. For example:

  • collagen type IV – is important for the structure of basement membranes that play an important role in blood filtration and immunity,
  • Type VI collagen – plays an essential role in muscle structure,
  • Type X collagen – is crucial for the development of growth cartilage, which enables bone growth in children and adolescents, 
  • Type XXVII collagen – is involved in the processes of nerve network formation.

These are just some of the many examples that allow you to understand how many types of collagen are present in the body, and each of them plays an important and unique role for health, beautiful appearance and well-being.

What type of collagen to choose?

Choosing the right type of collagen depends on the purpose of supplementation and the individual needs of the body. It is worth paying attention to the quality of the supplement, and choose products from reputable companies that offer collagen in a form that is easily absorbed by the body.

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