![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-n5jfq25gtv6a1.jpg?width=3024&format=pjpg&auto=webp&s=c53685dc976afea007c7474d3a241ce32479f8e1)
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
Q-Aesthetics Clinic - Vitamin C Serums - How to choose a good one? These factors are crucial: Stability of Vitamin C – Vitamin C (Ascorbic Acid) can be stabilised from oxidation by
![The oxidation-reduction (redox) reaction of vitamin C, molecular forms... | Download Scientific Diagram The oxidation-reduction (redox) reaction of vitamin C, molecular forms... | Download Scientific Diagram](https://www.researchgate.net/publication/306111617/figure/fig2/AS:403296855576577@1473164871264/The-oxidation-reduction-redox-reaction-of-vitamin-C-molecular-forms-in-equilibrium.png)
The oxidation-reduction (redox) reaction of vitamin C, molecular forms... | Download Scientific Diagram
![VITAMIN C SERUM 15% 1oz. 30ml Skin and Face | Tri-Blend Formula with C Ferulic and Glutathione | Powerful Anti Oxidant Repair Serum for Erasing Wrinkles and Blemishes VITAMIN C SERUM 15% 1oz. 30ml Skin and Face | Tri-Blend Formula with C Ferulic and Glutathione | Powerful Anti Oxidant Repair Serum for Erasing Wrinkles and Blemishes](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61sw-lQesyL.jpg)
VITAMIN C SERUM 15% 1oz. 30ml Skin and Face | Tri-Blend Formula with C Ferulic and Glutathione | Powerful Anti Oxidant Repair Serum for Erasing Wrinkles and Blemishes
![Is Vitamin Drop Safe from Oxidation in a Transparent Container? | KLAIRS FRESHLY JUICED VITAMIN DROP - YouTube Is Vitamin Drop Safe from Oxidation in a Transparent Container? | KLAIRS FRESHLY JUICED VITAMIN DROP - YouTube](https://i.ytimg.com/vi/dMKc1VoOQTA/maxresdefault.jpg)
Is Vitamin Drop Safe from Oxidation in a Transparent Container? | KLAIRS FRESHLY JUICED VITAMIN DROP - YouTube
![Mai on Twitter: "Once your vitamin C serum oxidised it will no longer be effective......the period if I'm not mistaken is up to 4 months after opening until the vitamin C serum Mai on Twitter: "Once your vitamin C serum oxidised it will no longer be effective......the period if I'm not mistaken is up to 4 months after opening until the vitamin C serum](https://pbs.twimg.com/media/DVr3JYsU0AEmN4h.jpg)
Mai on Twitter: "Once your vitamin C serum oxidised it will no longer be effective......the period if I'm not mistaken is up to 4 months after opening until the vitamin C serum
![PSA] Vitamin C serum - new vs oxidized. For anyone in doubt, here's what they look like! : r/SkincareAddiction PSA] Vitamin C serum - new vs oxidized. For anyone in doubt, here's what they look like! : r/SkincareAddiction](https://external-preview.redd.it/-G2I7m4LWioyEYHJsn9RdjIJjFcZUgKqni5s_cmkGLY.jpg?auto=webp&s=3068428e63b93e755e8a967f094ac688e69d5f5d)