Everyone has heard it before, but very few people know about the function of this anti-aging vitamin. How does vitamin C work in the skin? What does it have to do with our skin care? Does a cream or a serum work better against wrinkles? And above all: what properties does a vitamin C product have to be really effective?
Vitamin C supports the skin with essential functions and contributes to healthy, beautiful skin in various ways:
1. It is an effective antioxidant that eliminates free radicals.
2. It plays a key role in building collagen. It ensures smooth skin with fewer wrinkles.
3. It helps with blemishes, acne and pigment spots.
Vitamin C as an antioxidant
The metabolic processes in the body constantly generate new free radicals.  These species are unstable and destroy cell membranes, lipids and proteins in the search for reaction partners which are lipids, proteins and cell membrane. And these ingredients are essential for healthy skin. That is why free radicals contribute to skin ageing. By the way, environmental influences such as UV radiation, outdoor and indoor pollution and cigarette smoke also generate a lot of free radicals. 
In order to prevent free radicals from damaging the skin or the entire organism, we need antioxidants. These make free radicals harmless and can stop premature skin ageing.  Vitamin C is the best known antioxidant. In addition, the effect in skin care products has been scientifically proven.
There are many more antioxidants
Vitamin A is a classic in skin care and thus should not be missed in an anti-ageing product; and neither vitamin E. But there are also special antioxidants from nature. Resveratrol is known as a long-life molecule. Astaxanthin from red algae is considered one the ‘most effective antioxidant in the world’. I couldn’t find a study stating Astaxanthin is the most effective antioxidant. However, there are multiple studies that state it is a strong antioxidant thus, certainly worth to include in skincare. Overall, the key message is; our skin does n