Clinical Insights

PDRN and retinol are often compared, but they do different jobs. How each works, what the evidence shows, which suits which skin, and how to use PDRN and retinol together in one routine.

Vegan (plant) PDRN, salmon PDRN and Lacto-PDRN are all sold as PDRN, but they come from plant cells, fish and fermented bacteria. How each is made, what the research shows, and how to tell which one a product uses.

PDRN is a purified mix of short DNA fragments, usually from salmon or trout, now one of the fastest-growing skincare ingredients. What it is, what the research shows, and how to choose between a PDRN serum, cream and mask.

Marine spicules are microscopic silica needles from sea sponges that open thousands of microchannels in the outer skin layer. What the research shows, how they compare with microneedling, and how to use them.

PDRN and polynucleotides are both purified DNA fragments, but they differ in chain length and molecular weight. How each works, what the evidence shows, and what it means for topical skincare.

The stratum corneum is a lipid barrier, so water-soluble actives like vitamin C struggle to cross it. How liposomes, reverse micelles and microneedling change that, and what it means for topical protocols.