If you want to conjure up a radiant complexion, you can use a vitamin C serum. Thanks to the brightening effect, the complexion becomes more even and has a fresh glow. But caution is advised when storing the beauty product – otherwise the serum will quickly lose its effectiveness. We’ll tell you how you can tell when the vitamin C serum belongs in the trash.
This is why vitamin C oxidation occurs
Vitamin C serums are very sensitive and should therefore be stored properly. Does it come with air, respectively Oxygen, light (UV radiation), heat and moisture or water comes into contact, oxidation occurs. During the oxidation process, L-ascorbic acid is reversibly converted to dehydroascorbic acid (DHA). If the product is too heavily oxidized, it loses effectiveness and the skin is no longer protected from free radicals. This could cause irritation, especially if you have sensitive skin.
How to recognize an oxidized vitamin C serum
If your vitamin C serum is oxidized, you should notice it directly by the color. A fresh serum is light or light-gold, in contact with air it can become yellow, orange or even brownish discolor. Then the anti-aging booster is ineffective and belongs in the trash.
With these 3 tips you can avoid oxidation
To ensure you can use your vitamin C serum for as long as possible, you should pay attention to the following tips.
- It is best to store your vitamin C serum cool and dark. Storage in the refrigerator is ideal.
- Try the vitamin C serum airtight closed so that it comes into contact with oxygen as little as possible.
- Pay attention to the packaging. Ideally, the vitamin C serum is in one opaque, dark bottle bottled.
These vitamin C serums are particularly popular:
Sources used: K-Beauty House, Beauty Punk
