With the change of weather comes the time for a change in skin care . Tired of the sun, heat and salt, she must be prepared for the cold months. But how?


Keratinocytes are skin cells that make up most of the outer layer of the skin, known as the epidermis. They are the only cells in the human body that can make vitamin D from its precursor, 7-dehydrocholesterol (7-DHC), and convert it so that the body can use it.


Vitamin D plays an important role in skin barrier function and skin cell growth. It supports the skin's immune system, which acts as the first line of defense against harmful pathogens. Therefore, taking the vitamin is a great preparation for autumn. 


The same goes for collagen, the most abundant protein in the human body, accounting for 75% of the skin's dry weight.


Some research shows that taking collagen supplements can have a number of benefits for the skin, including reducing the depth of wrinkles and increasing hydration.


The next step on the way to healthy skin is getting enough vitamin C. It acts as a powerful, skin-protecting antioxidant and is essential for collagen production .


The skin itself contains very high levels of vitamin C - some studies have found a concentration of up to 64 mg of vitamin C per 100 grams of the epidermal skin layer.


Not surprisingly, studies show that increasing vitamin C through supplementation can improve many factors of skin health, including skin hydration.


Vitamin C can improve skin barrier function and help reduce water loss, which in turn prevents skin dryness.


Another good helper in skin care is fish oil . It contains docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), two essential fatty acids that have powerful anti-inflammatory and healing properties. Fish oil supplements can also help increase hydration.


8 Best Vitamins and Supplements for Dry Skin. Healthline - https://www.healthline.com/nutrition/vitamins-for-dry-skin