As skin ages, its structure weakens—the boundary between the outer and deeper skin layers flattens, and important proteins called collagen break down. Modern skin treatments are moving away from simply adding volume toward products that can actually help skin rebuild itself. A new dermal filler made from niacinamide and hyaluronic acid was tested to see if it could do multiple helpful things at once: stimulate collagen growth, fight bacteria, reduce inflammation, and stay safe in the skin. Researchers grew human skin samples in the lab and treated them with this new filler, then compared the results to untreated skin and a leading commercial filler.
They measured how much collagen formed, tested whether bacteria could survive, checked inflammation markers, and confirmed the filler wasn’t toxic to skin cells. The niacinamide-enriched filler improved skin structure, created denser collagen networks, killed a significant amount of both types of bacteria, sharply reduced inflammatory molecules, and proved very safe—skin cells thrived and showed no harmful reactions. This suggests the product could offer skin rejuvenation benefits beyond simple plumping, while also protecting against infection and inflammation. (Source: Eur J Pharm Biopharm, via PubMed.)
Source: PubMed — read the full article