![product question] when is vitamin C considered too oxidized that it's harmful? Details in comments : r/SkincareAddiction product question] when is vitamin C considered too oxidized that it's harmful? Details in comments : r/SkincareAddiction](https://preview.redd.it/f8d6yyu5u6j51.jpg?auto=webp&s=a14991d8e61bb33ce38f7e5c5bed75bb5d77d7fe)
product question] when is vitamin C considered too oxidized that it's harmful? Details in comments : r/SkincareAddiction
![product question] is this oxidized? It has been this color since I first opened it but it looks pretty dark? Ok to use? : r/SkincareAddiction product question] is this oxidized? It has been this color since I first opened it but it looks pretty dark? Ok to use? : r/SkincareAddiction](https://i.redd.it/product-question-is-this-oxidized-it-has-been-this-color-v0-pejbu25gtv6a1.jpg?width=3024&format=pjpg&auto=webp&s=bc8b4aa4d94bf32968fa2bd3a372fc43dd0af1a1)
product question] is this oxidized? It has been this color since I first opened it but it looks pretty dark? Ok to use? : r/SkincareAddiction
![Amazon.com: Vichy LiftActiv Suero de vitamina C, suero iluminador y antienvejecimiento para la cara con 15% de vitamina C pura, suero facial reafirmante y antioxidante para brillo e hidratación Amazon.com: Vichy LiftActiv Suero de vitamina C, suero iluminador y antienvejecimiento para la cara con 15% de vitamina C pura, suero facial reafirmante y antioxidante para brillo e hidratación](https://m.media-amazon.com/images/I/71zjN--QysL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Vichy LiftActiv Suero de vitamina C, suero iluminador y antienvejecimiento para la cara con 15% de vitamina C pura, suero facial reafirmante y antioxidante para brillo e hidratación
![Product Question] My Tia'm Vitamin C serum has oxidized - Is it still safe to use or should I throw it out? : r/SkincareAddiction Product Question] My Tia'm Vitamin C serum has oxidized - Is it still safe to use or should I throw it out? : r/SkincareAddiction](https://preview.redd.it/7tjjlmheg6r01.jpg?auto=webp&s=01ad94605c9b0177add15483dca6ad6762fbff5e)