Among my favorite ingredients for skin care (and there are many, niasinamide, peptides, retinoids, to continue?) Vitamin C is probably the most beloved. And for two reasons: The first is that it is truly multifunctional and has many beneficial properties (we will say in a little while). And for two reasons: First, it is a real multifunctional hero with countless benefits. Secondly, I have seen a huge difference in my skin, brighter, more uniform, healthier.

But that does not mean that I use any product with vitamin C I find in front of me. On the contrary, I am very selective with this and only a few vitamin C products have the honor of finding a place in my bathroom. I don’t do it because I’m curious (though maybe I’m), but because the right choice is important. And using it properly, too. Read below for one important detail that you need to know before using vitamin C.

The benefits of vitamin C

Let’s first talk about the benefits of vitamin C and how it works on the skin. Vitamin C is an antioxidant that helps reduce environmental damage. Simply put, it protects your skin from free radicals, that is, those harmful molecules coming from the sun, pollution, and even natural metabolic processes of the body. Free radicals destroy DNA and cause premature aging, such as wrinkles and fine lines.

But the best? Vitamin C also does something “magical”, it is the glitter in a bottle. With constant use, it reduces discoloration, panicles and dark spots, giving a brighter and uniform look.

Extra Tip: It works on all skin types, whether you have oily, dry or mixed skin.

What you need to know about vitamin C

As much as vitamin C is the ultimate antioxidant, it has a great weakness, it is particularly unstable. If it is altered or oxidized before it reaches your skin, it becomes useless. And not only if you use an oxidized product, it can cause irritation, even black spots. The color is a large indicator of vitamin C stability. If it becomes darker or brown, or if it has a strange smell, throw it away.

How to avoid it:

– Save it in a cool place, with no direct sun exposure or abrupt temperature changes.
– Check the expiration date and the formula recommendation. If it has changed color or smell, it’s time to leave.

How to properly use vitamin C

Tip: Vitamin C performs better in the morning before your sunscreen.

It is designed to protect the skin, so it works all day. However, antioxidants are beneficial at night, especially if you use a repair serum.

When not to use it:

– If your skin is irritated after aesthetic treatments.
– If you notice irritations or redness.

Vitamin C is a must-have if you want shiny, protected and uniform skin, but only if you choose the right formula and use it properly.