Collagen is a key ingredient in the world of beauty and skincare, often mentioned for its anti-aging and restructuring properties.
But what exactly is collagen and how is it used in cosmetics?
This precious protein is truly essential for skincare: that’s why today we want to clarify its actual functions and how to ensure that our body produces the right amount of it over time, resorting - when needed - to the best natural supplements!
There are different types of collagen: let’s understand together which one is right for you!
What is collagen?
Collagen is a fundamental structural protein that makes up about 30% of the total proteins in the human body.
It is particularly abundant in connective tissues, such as skin, tendons, ligaments, and bones, and plays a crucial role in ensuring skin elasticity and strength.
As the years go by, the natural production of collagen tends to decrease, leading to the unfortunately well-known signs of aging, such as wrinkles, less elastic skin, and loss of tone.
Where is natural collagen found?
Collagen is naturally found in many animal-based foods, especially in the parts rich in connective tissues, such as cartilage, bones, and skin.
Foods like bone broth, meat, and fish actually contain good amounts of collagen, but unfortunately, a significant portion is usually lost during cooking.
For this reason, despite collagen being a natural element that can also be obtained through diet, the only way to ensure significant intake and achieve the desired benefits is through the use of targeted supplements and cosmetics specifically for skin care.
What’s the difference between hyaluronic acid and collagen?
Collagen and hyaluronic acid are often mentioned as allies in skincare, but they have different functions.
Collagen is a protein that provides structure and resistance to tissues, while hyaluronic acid is a substance that helps maintain hydration by holding large amounts of water in the skin.
When working together, these two components can further improve skin elasticity, firmness, and hydration, though they operate through different mechanisms.
Let’s focus a bit more on collagen...
What is collagen used for?
Collagen serves multiple functions within the human body, especially concerning the integumentary system, i.e., the skin.
It is thanks to collagen that the skin has elasticity and firmness, maintaining a youthful and toned texture.
In cosmetics, collagen is used to:
- reduce the appearance of wrinkles;
- increase skin elasticity;
- improve skin hydration;
- strengthen hair and nails;
- accelerate tissue regeneration.
But the point is not so much to "add" collagen, but to ensure that our body continues to produce it in the right quantities.
What stimulates collagen production?
The natural production of collagen can indeed be stimulated through various factors.
First and foremost, a proper intake of Vitamin C is essential for promoting collagen synthesis, as it plays a role in stabilizing the protein.
Proteins from the diet are also indispensable for providing the amino acids necessary for collagen formation.
Additionally, some cosmetic products, such as those containing retinol or peptides, can stimulate collagen production in the skin.
Finally, treatments like microneedling or laser can "mechanically" induce collagen regeneration.
Okay, we are starting to understand more about collagen and why it’s so important, but often it is not simply referred to as "collagen," and confusion can arise.
There are different types of collagen...
Collagen Type I, II, or III?
The choice of collagen depends on the specific goal you want to achieve, as there are different types of collagen, each with specific benefits.
- Type I Collagen
Source: fish (marine collagen) or bovine
Benefits: it is the most abundant in the human body and mainly helps improve the health of skin, nails, hair, and bones.
Ideal for preventing and reducing wrinkles, improving skin elasticity, and promoting wound healing.
- Type II Collagen
Source: chicken or bovine cartilage
Benefits: found in joints and cartilage. It supports joint health and reduces inflammation and joint pain.
Ideal for those suffering from arthritis or joint issues, or for those who practice sports that place strain on the joints.
- Type III Collagen
Source: often found together with Type I collagen, derived from bovine or porcine sources.
Benefits: supports the structure of organs and muscles and contributes to the health of the skin and blood vessels.
Ideal for skin elasticity and muscle strengthening.
Hydrolyzed Collagen
Hydrolyzed collagen is a form of collagen that has been broken down into smaller fragments called peptides to facilitate absorption by the body.
It is often used in dietary supplements and cosmetic products to improve the health of skin, hair, and joints.
Thanks to its hydrolyzed form, collagen is more easily absorbed by the body and circulated more rapidly to regenerate tissues.
Marine Collagen
Marine collagen is a type of collagen derived from fish skin and scales.
It is particularly appreciated in cosmetics for its high bioavailability, meaning it is absorbed quickly by the body.
It is particularly rich in "Type I" collagen, the most abundant in human skin, and is often preferred by those seeking a cleaner and more sustainable alternative to bovine collagen.
Plant-Based Collagen
Unfortunately, there is no plant-based source of true collagen, but there are plant-based supplements that can stimulate collagen production (such as Vitamin C, silicon, amino acids, etc.).
This solution is therefore suitable for vegans and vegetarians who want to support the natural production of collagen in the body.
Can collagen have side effects? Who should avoid taking collagen?
Collagen is generally considered safe and hypoallergenic, but like any supplement or cosmetic ingredient, it’s always possible that, in rare cases, side effects may occur.
Possible adverse reactions may include mild gastrointestinal discomfort, especially after taking a large dose of the product.
Those who are allergic to animal products may need to avoid collagen derived from these sources.
Finally, individuals with severe kidney conditions or those following very restrictive diets should obviously consult a doctor before taking collagen supplements.
Collagen Properties and Benefits for Skin
Collagen improves skin elasticity, helping to maintain a firmer, more resilient structure.
Collagen is a natural anti-wrinkle agent, as stimulating the production of new collagen can reduce the signs of wrinkles and skin aging.
Collagen hydrates the skin, helping to maintain softer, healthier skin.
Collagen brightens the skin, thanks to its regenerative properties, it helps create a more even and radiant complexion.
Collagen and Skin Care: Its Use in Cosmetics
Based on what we’ve discussed so far, it’s easy to see why collagen has found such widespread use in cosmetics in recent years.
Collagen is used in a wide range of cosmetic products, such as serums, creams, masks, and supplements.
It is often combined with other anti-aging ingredients like hyaluronic acid, retinol, and peptides to maximize its effects.
However, collagen absorption through the skin can sometimes be limiting, so many products focus more on stimulating collagen production rather than directly providing collagen.
Cosmetics with Collagen: What to Look For
When choosing collagen-based cosmetics, it is important to pay attention to several factors:
- Choose products that contain hydrolyzed collagen for better absorption;
- Look for products with complementary ingredients like Vitamin C, which supports collagen synthesis;
- Consider products with retinol or peptides, which can stimulate collagen production.
Conclusions: Collagen as an Essential Ingredient for Skincare
Collagen is a crucial element in maintaining the youthfulness of our skin, ensuring its elasticity, hydration, and firmness.
With proper care and the right use of supplements or collagen-enriched cosmetics, it is possible to preserve the integrity of the skin for longer, keeping it toned and youthful even as time passes.