N organic's popular vitamin C serum has been renewed with a power-up! With a concentrated vitamin C concentration, now doubled, it leads to firm skin and a brighter impression. It's a low-irritation formula with carefully selected ingredients that are gentle on sensitive skin. The concentration of vitamin C derivatives has been doubled, penetrating the stratum corneum with each use. Furthermore, by adding vitamin A and vitamin E, it addresses pores and dullness. Ingredients specialized for firmness have also been added, leading to firm skin with a bright impression. I have a subscription, but I have some extra, so I'm selling it.