Understanding Collagen — Why It Matters for Your Skin

Last updated: 5 March 2026

Collagen is the most abundant protein in the human body, accounting for approximately 30% of total protein content. It provides structural integrity, elasticity, and hydration to the skin — making it the foundation of youthful appearance.

Types of Collagen in Skin

Over 28 types of collagen have been identified, but three are most relevant to skin:

• Type I (90% of skin collagen): Provides tensile strength and firmness
• Type III: Found alongside Type I, important in wound healing and skin elasticity
• Type IV: Forms the basement membrane zone, supporting skin structure

The Collagen Decline

From our mid-twenties, collagen production decreases by approximately 1–1.5% per year. By age 50, we have lost roughly 25–30% of our skin collagen. Post-menopause, women experience accelerated collagen loss of up to 30% in the first five years.

Factors That Accelerate Collagen Loss

• UV radiation (photoageing — the number one cause)
• Smoking (reduces collagen synthesis and increases degradation)
• High sugar diet (glycation damages collagen fibres)
• Chronic stress (cortisol inhibits collagen production)
• Poor sleep (growth hormone for repair is released during deep sleep)

Boosting Collagen

Professional Treatments

Microneedling, RF microneedling, HIFU, and Profhilo all stimulate significant new collagen production — the most effective approaches available.

Skincare

Retinoids, vitamin C, and peptides all support collagen synthesis when used consistently.

Lifestyle

Daily SPF 50, adequate sleep, antioxidant-rich diet, and not smoking are the pillars of collagen preservation.

Book a collagen-boosting consultation at Axiom Aesthetics.

Medical Disclaimer: This article is for informational purposes. Reviewed by the Axiom Aesthetics Clinical Team, February 2026.