If you’re layering on serums and masks but your skin still looks dull, it may be time to work from the inside out.
Why topical skincare has limits
Creams and serums hydrate and protect the skin’s surface—but they don’t reach the deeper dermis, where collagen fibres determine firmness and elasticity. That’s why, even with a good skincare routine, fine lines and sagging eventually creep in.
How collagen changes with age
From your mid-20s, collagen levels decline 1–2% per year. Sun exposure, sugar, and stress speed this up. The result: thinner, less elastic skin.
In as little as 4–12 weeks, women taking collagen peptides daily noticed visible changes—smoother, more hydrated skin, better elasticity, and fewer fine lines. These results aren’t just anecdotal: controlled studies and meta-analyses show that oral collagen supplementation consistently outperforms placebo, giving skin the building blocks it needs to look and feel more youthful【5】【6】【7】
Why oral collagen works differently
When digested, collagen peptides release amino acids (glycine, proline, hydroxyproline). These circulate in the bloodstream and signal fibroblasts to produce more collagen—supporting structure and hydration from within.
How to build an inside-out glow routine
Take 2.5–10 g daily for best results.
Pair with vitamin C to support collagen cross-linking.
Stay hydrated for better absorption.
Support lifestyle factors: protect from UV, reduce sugar, prioritise sleep.
The balanced evidence view
Most studies on collagen supplementation point to encouraging results, with improvements in skin hydration, elasticity, and smoothness. While research is still growing, the overall evidence strongly suggests collagen is a valuable addition to your topical skincare routine—working from within to support a healthier, more radiant complexion.
Bottom line: Skincare creams matter, but real resilience begins deeper. A daily collagen habit helps restore elasticity and glow from within—so you can get more from the products on your shelf.
References:
5. IJDVL – Collagen Meta-analysis
6. MDPI – Oral Collagen Peptides Trial
7. RSC – Collagen Peptides & Skin Health
8. Harvard Health – Considering Collagen Supplements
