The 16-week, double-blind, placebo-controlled study investigated the effects of daily supplementation with 5 g of hydrolysed collagen (HC) and 80 mg of vitamin C, with or without 30 mg of hyaluronic acid (HA), in women with ageing skin.
Results showed a 16% improvement in dermal density after just 8 weeks, continuing to rise through the full 16-week period. Skin roughness was reduced by up to 9.9%, and wrinkle volume decreased by nearly 14%.
The improvements in skin texture and density were comparable to those seen in previous studies using higher doses of collagen, highlighting the potential of a lower daily dose over a longer timeframe.
With over 11,000 views, the response so far speaks to the growing interest in evidence-based beauty supplements.

The study also recorded measurable improvements in wrinkle depth and overall skin appearance, confirming the effectiveness of collagen in supporting visible skin regeneration.
This extended intervention period demonstrated that consistent, long-term collagen supplementation can result in significant structural changes within the dermis — the layer responsible for skin firmness and elasticity.
With results that reflect both efficacy and practicality, our study adds to the growing body of evidence supporting collagen’s role as a leading ingredient in skin health.
To read the full study, click here.