Collagen
Collagen — the most abundant structural protein in the body and the main building block of the dermis, forming a fibrous network that gives skin strength and support. Produced largely by fibroblasts, it works alongside elastin to keep skin firm and resilient.
Key points
- Collagen provides the tensile strength and structural scaffolding of the dermis.
- There are many types of collagen, with types I and III being the most prevalent in skin.
- Natural collagen production tends to decline with age and is further affected by sun exposure and other environmental factors.
- Collagen in skincare is often included for its moisturizing and film-forming properties on the skin's surface.
Frequently asked
Does applying collagen to the skin replace lost collagen?
Topical collagen molecules are generally too large to penetrate deeply and mainly act as surface moisturizers rather than directly replacing collagen in the dermis.
What causes collagen to break down?
Collagen breakdown is influenced by natural aging along with factors such as ultraviolet exposure, pollution, and lifestyle habits that promote oxidative stress.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
