It’s my favorite and most cherished among Celigin skincare products. With a high concentration of Cosco ingredients, the effects are top-notch. I use the silver ampoule five times a week and the gold ampoule twice. Layering it with the cream, my skin looks amazing the next day – what more can I say? Celigin keeps making me look younger the more I use it. It’s a game-changer! 👍