![How bad is it to use oxidised Vitamin C product? When do you toss it out? [Product Question] : r/SkincareAddiction How bad is it to use oxidised Vitamin C product? When do you toss it out? [Product Question] : r/SkincareAddiction](https://preview.redd.it/o44doi719bvx.jpg?width=640&crop=smart&auto=webp&s=15ccb3f1278034c653739ac38f2e6e483ebad967)
How bad is it to use oxidised Vitamin C product? When do you toss it out? [Product Question] : r/SkincareAddiction
![Foods | Free Full-Text | Different Effects of Vitamin C-Based Supplements on the Advance of Linseed Oil Component Oxidation and Lipolysis during In Vitro Gastrointestinal Digestion Foods | Free Full-Text | Different Effects of Vitamin C-Based Supplements on the Advance of Linseed Oil Component Oxidation and Lipolysis during In Vitro Gastrointestinal Digestion](https://pub.mdpi-res.com/foods/foods-11-00058/article_deploy/html/images/foods-11-00058-ag.png?1640683352)
Foods | Free Full-Text | Different Effects of Vitamin C-Based Supplements on the Advance of Linseed Oil Component Oxidation and Lipolysis during In Vitro Gastrointestinal Digestion
![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
![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
![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
![Ascorbic acid (vitamin C), along with having many other reputed properties, acts as an antioxidant. The following equation illustrates its antioxidant properties. H_2C_6H_6O_6 \to C_6H_6O_6 + H_2(g) What is an antioxidant? Assign Ascorbic acid (vitamin C), along with having many other reputed properties, acts as an antioxidant. The following equation illustrates its antioxidant properties. H_2C_6H_6O_6 \to C_6H_6O_6 + H_2(g) What is an antioxidant? Assign](https://homework.study.com/cimages/multimages/16/screenshot_2022-09-29_at_11.20.48_pm8960287144839258140.png)
Ascorbic acid (vitamin C), along with having many other reputed properties, acts as an antioxidant. The following equation illustrates its antioxidant properties. H_2C_6H_6O_6 \to C_6H_6O_6 + H_2(g) What is an antioxidant? Assign
![redox - Why is ascorbic acid (vitamin c) readily oxidised in the presence of oxygen? - Chemistry Stack Exchange redox - Why is ascorbic acid (vitamin c) readily oxidised in the presence of oxygen? - Chemistry Stack Exchange](https://i.stack.imgur.com/COScD.jpg)
redox - Why is ascorbic acid (vitamin c) readily oxidised in the presence of oxygen? - Chemistry Stack Exchange
![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
![Redox chemistry of vitamin C. As depicted, ascorbate can undergo two... | Download Scientific Diagram Redox chemistry of vitamin C. As depicted, ascorbate can undergo two... | Download Scientific Diagram](https://www.researchgate.net/publication/354346282/figure/fig1/AS:1064182719991809@1630732340150/Redox-chemistry-of-vitamin-C-As-depicted-ascorbate-can-undergo-two-sequential.png)
Redox chemistry of vitamin C. As depicted, ascorbate can undergo two... | Download Scientific Diagram
![Ascorbate oxidation by iron, copper and reactive oxygen species: review, model development, and derivation of key rate constants | Scientific Reports Ascorbate oxidation by iron, copper and reactive oxygen species: review, model development, and derivation of key rate constants | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-021-86477-8/MediaObjects/41598_2021_86477_Fig1_HTML.png)
Ascorbate oxidation by iron, copper and reactive oxygen species: review, model development, and derivation of key rate constants | Scientific Reports
![Amazon.com: Vichy LiftActiv Vitamin C Serum, Brightening and Anti Aging Serum for Face with 15% Pure Vitamin C, Skin Firming and Antioxidant Facial Serum for Brightness and Moisturizing Amazon.com: Vichy LiftActiv Vitamin C Serum, Brightening and Anti Aging Serum for Face with 15% Pure Vitamin C, Skin Firming and Antioxidant Facial Serum for Brightness and Moisturizing](https://m.media-amazon.com/images/I/71zjN--QysL._AC_UF1000,1000_QL80_.jpg)