Has My Vitamin C Oxidised?

,

Welcome back to my quick fire questions serious. Today we are tackling Vitamin C oxidation and if you’re pondering this question I am going to take a wild guess and assume you’ve already researched and bought a Vitamin C product. Hence, I am not going to bore you with the benefits of Vitamin C and get straight to the point.

How do I know when my vitamin C is oxidised?

There are two ways: change of colour and lack of tingling when applying the product. If the serum was clear to begin with then it will turn to a brown or yellow colour when it has begun to degrade. However, as we know some vitamin c serums start off orange (like Drunk Elephants C-Firma) and while a colour change may occur it may not be as apparent to you.

In this instance I prefer to take note of how it feels on the skin. When applied to skin vitamin C should give you a slight tingling sensation and as it loses its efficacy it loses its tingle. This is how I determine whether it has oxidised or not.

Vitamin C oxidises very quickly once opened so it’s best to be consistent with use and a general rule is to try and finish the product within 3 months of opening.

Read more


Featured content.

Can You Use Glycolic Acid Everyday?

It is generally not recommended to use glycolic acid every day, as it can be irritating to the skin. It is typically used once or twice a week. However, the frequency of use may vary depending on the concentration of the glycolic acid and the specific product that you are using. It is important to…

Keep reading

Niacinamide Vs Hyaluronic Acid

If you’ve followed Science and Skincare for any amount of time, you’ll be aware of my posts on acids. Niacinamide vs Hyaluronic Acid will be the highly requested addition to the category that made this site popular. Depending on your skincare knowledge, choosing between the two will either be easy or incredibly difficult. However, one…

Keep reading

Mandelic Acid vs Retinol

Mandelic Acid vs Retinol? Which one is right for you? Can you use both? If these are questions that have crossed your mind lately, then you’ve come to the right place. I’ve covered the topic of acids extensively and will continue to do so (because it is incredibly confusing and you have to be careful).…

Keep reading
%d bloggers like this: