January 27, 2025

Collagen in Cosmetics: Functions, Benefits, and Clinical Applications

Collagen is a fundamental protein that makes up about 75% of the dry weight of the skin. It is responsible for skin elasticity, firmness, and resistance. With age, collagen production decreases, leading to wrinkles and loss of tone. This article explores the functions of collagen, its applications in cosmetics, and the scientific evidence on the results that can be achieved.

What is Collagen and Why is it Important

Collagen is a structural protein found in the skin, tendons, and ligaments. It provides support and structure to connective tissues, keeping the skin firm and resilient.

Main Functions of Collagen

Elasticity and tonicity: Keeps the skin firm and smooth.
Cell phone repair: Promotes regeneration and healing.
Deep hydration: Improves the skin's ability to retain water.
Protection from environmental damage: Strengthens the skin barrier against free radicals.

Types of Collagen in Cosmetics

There are different types of collagen used in cosmetic formulations:

Hydrolyzed Collagen: Derived from animal or marine sources, it is fragmented into smaller peptides for rapid absorption.
Vegetal Collagen: Vegan alternative that mimics the structure of animal collagen.
Collagen Peptides: Stimulate the natural production of collagen in the skin.
Marine Collagen: Rich in essential amino acids, it is easily absorbable and biocompatible.

Benefits of Collagen in Cosmetics

Scientific Studies and Clinical Results

According to a study published in the Journal of Cosmetic Dermatology, the use of hydrolyzed collagen for 8 weeks improved skin elasticity by 20%.
Research conducted by the International Journal of Molecular Sciences shows that collagen peptides increase the synthesis of new collagen fibers.

Main Benefits

Wrinkle reduction: Improves firmness and reduces signs of aging.
Prolonged hydration: Increases water retention in the tissues.
Visible elasticity: Skin that is firmer and younger thanks to the regeneration of fibers.
Support for cellular renewal: Promotes turnover and repair of damaged tissues.

Applications of Collagen in Cosmetics

Creams and Serums

Formulations enriched with hydrolyzed collagen for an immediate firming effect.

Face Masks

Fabric or gel masks that release moisturizing and regenerating active ingredients.

Anti-Aging Treatments

Concentrated serums: They combine peptides and collagen to stimulate endogenous production.
Eye patches: Targeted for the eye area, they reduce puffiness and dark circles.

Oral Supplements

Hydrolyzed collagen supplements support internal production and improve skin health from the inside.

Routine Skincare with Collagen

An optimal routine to take advantage of the benefits of collagen includes:

Cleansing: Gently clean the skin to remove impurities and prepare it for treatments.
Concentrated Serum: Apply a serum rich in peptides and collagen to stimulate regeneration.
Firming Cream: Use a cream with marine collagen and antioxidants to nourish and protect.
Weekly Masks: Enhance treatments with collagen-based masks.
SPF 50: Protect the skin from sun damage that degrades collagen.

Collagen and Aesthetic Treatments

Collagen is often combined with aesthetic treatments to enhance their results:

Micro-needling: Stimulates the natural production of collagen.
Fractional laser: Renews the skin and improves texture.
Collagen-based fillers: Plump the skin by reducing wrinkles and fine lines.

Conclusion

Collagen is one of the most effective ingredients in cosmetics to combat skin aging. Thanks to advanced formulations and clinical studies that demonstrate its benefits, it is possible to incorporate this ingredient into a daily skincare routine for visible and lasting results.