Vitamin C is a water-soluble antioxidant and a natural component of healthy skin.
Skincare products with a high concentration of Vitamin C are extremely hydrating, including the ability to even out skin tone and diminish the appearance of fine lines and wrinkles.
Vitamin C can be used twice daily, both morning and night. After cleansing, toning, and exfoliating.
Why Vitamin C is important?
Vitamin C is one of the most potent antioxidants in the skin.
It neutralizes the oxidative stress, caused by sun exposure.
Moreover, Vitamin C is equally effective against both UVB (290-320 nm) and UVA (320-400 nm).
In addition to UV damage caused on human skin, sunscreens block only 55% of the free radicals produced by UV exposure.
To optimize UV protection, it is important to use sunscreens combined with a topical antioxidant.
Although, vitamin C does not absorb UV light but exerts a UV-protective effect by neutralizing free radicals, while this effect is not seen with any of the sunscreens.
What is important when choosing vitamin C serum?
Vitamin C is available in a number of active forms and concentrations.
Among all forms, L-ascorbic acid is the most biologically active.
In most cases, for a product to be powerful enough to protect skin cells, it needs to have a vitamin C concentration higher than 8%.
Besides that studies have shown that a concentration above 20 % does not increase its biological significance and, conversely, might cause more irritation.
How to add vitamin C into your skin routine?
Most of the skincare products in higher than 8% Vitamin C concentration will be found as serums or lightweight moisturizers.
In that case, it is important to follow the usual: thinnest to thickest or water-soluble to oil-soluble, skincare product order.
Additionally, vitamin c products can be used daily in the morning and/or evening. However, it must be followed with sunscreen or tinted moisturizer if you choose to use it in the morning.
Can vitamin C cause an irritation?
Vitamin C is one of the safest skincare ingredients, considering all the other active components.
However, Vitamin C can cause irritation to people who have allergies or are intolerant to Vitamin c.
We recommend starting slowly, within the lower concentration, and increase it within time.