Brand from South Korea: FULLight. Benefits:This serum with 50,000ppm PDRN in 95% purity helps boost firmness of the skin and offers it natural radiance, creating plump, clear skin complexion.Features Salmon Exosome PDRN in 1/300 size of a pore, which penetrates to the deep layer of skin quicker than other types of PDRN.Infused with 189Da small molecular Collagen to help improve skin firmness.Formulated together with Elastin, which aids Collagen Fiber production for restoring skin resilience, and Hyaluronic Acid, which keeps the skin moisturized.Skin irritation test completed.How to use:Apply a moderate amount of the serum to the entire face and pat the skin gently for absorption.