Collagen: What Are We Actually Trying to Stimulate?

Collagen Is More Than an Anti-Ageing Buzzword

Collagen has become one of the biggest buzzwords in skincare. We are told to drink it, stimulate it, protect it and encourage our skin to produce more of it, but very little is actually said about what we are trying to achieve. Collagen is one of the main structural proteins within the dermis and forms part of the framework that gives our skin its strength, density and support.

Fibroblasts are the cells responsible for producing collagen, elastin and other components of the extracellular matrix. When we are younger, this system works incredibly efficiently, constantly maintaining and repairing the structure of the skin. As we age, that process naturally becomes slower while UV exposure, oxidative stress and chronic inflammation contribute to the breakdown of the collagen we already have. Eventually, we begin breaking it down faster than we can effectively replace it.

What Are We Actually Trying to Stimulate?

There are many different types of collagen throughout the body, but collagen 1 and collagen 3 are particularly important when we talk about skin. Collagen 1 provides much of the strength and structure of mature skin while collagen 3 plays an important role during early wound healing and tissue repair. When we deliberately stimulate the skin through a regenerative treatment such as microneedling, we create a controlled injury that tells the body repair is required. Fibroblasts become involved, new extracellular matrix begins to form and collagen production is stimulated.

But the collagen created during those early stages isn’t the finished result. Over the following weeks and months, that tissue continues to mature, reorganise and remodel. This is also why I don’t believe more trauma automatically means more collagen. We need enough stimulation to create the biological response we want, followed by enough time for the skin to actually complete it.

Collagen Banking, Not Chasing Ageing

For me, collagen stimulation is becoming less about trying to reverse ageing and more about collagen banking. Protect the structure you already have, minimise unnecessary collagen breakdown and periodically give the skin an intelligent reason to regenerate. There is very little point investing in treatments designed to stimulate fibroblasts if we are simultaneously creating constant inflammation, compromising the barrier or exposing the skin to UV without adequate protection.

Good regenerative skin therapy is as much about restraint as it is about stimulation. I want to know when to stimulate the skin, how much stimulation it actually needs and when to leave it alone and allow biology to take over. I don’t want to make a 50-year-old’s skin pretend it is 20. I want that 50-year-old skin to be the strongest, healthiest and most structurally supported version of itself.

Because ageing well isn’t simply about producing more collagen. It’s about protecting what we already have and keeping the skin capable of producing healthy, organised tissue for as long as possible.