C in the morning
C stands for Vitamin C. Vitamin C, also known as ascorbic acid, is a familiar ingredient in many skin care products. What does it do?

Antioxidants are not anti-oxygen but anti-free radicals. When our skin is disturbed by ultraviolet light and air pollution, it accelerates the production of free radicals, damaging our skin. As a reducing agent, vitamin C can combine with oxidizing free radicals to reduce the damage of free radicals to cells. It can say that he sacrificed himself for his teammates! Blocking melanin Production Our skin’s melanin is produced by a series of reactions involving tyrosine, the enzyme tyrosinase. It is known that melanin deposition causes our skin to become dull. Vitamin C disrupts melanin production by, for example, inhibiting tyrosinase activity so that less melanin is white.
A at night
The main ingredient in skin care products is Retinol (Retinol), while retinic acid is mainly added to medicines. A stands for Retinol. In the vitamin A family, there are Retinoic Acid, Retinaldehyde, Retinol, andRetinyl Palmitate; the closer to Retinoic Acid, the better the effect and the stronger the irritation. Vitamin A, as the skin care industry “all in all,” not only has an anti-aging effect but also can stimulate the synthesis of new collagen to reduce fine lines but also can accelerate the renewal of epidermal cells to acne; it can be described as an indispensable little helper on the road to skin care.

Why do we need ‘C in the morning, A at night’?
The biggest challenge our skin faces during the day is “photoaging” caused by ultraviolet light. Because ultraviolet radiation will let our body’s free radicals surge, many free radicals will attack the normal cells in our skin, causing cell damage and oxidation. Dullness, roughness, uneven skin tone, fine lines, and other problems can arise when the damage rate is faster than our skin can repair. So antioxidants are essential for daytime skin. Vitamin C is the perfect antioxidant, which can fight free radicals in real-time while helping brighten and whiten the skin.

During the day, the skin has to resist the pressure of the external environment and cooperate to make a variety of expressions, so there is not enough time and conditions to complete the repair. So at night, our skin finishes repairing itself, and that’s when a solid supporting role is needed. That’s where the VA acid comes in, which speeds up the cuticle metabolism and makes the epidermis more water-locked. It also controls tyrosinase and reduces melanin production. I insist on using, wait for a problem to fine grain, coarse and color spot can have apparent improvement effect.
It is essential to establish tolerance in novices.
Although ‘C in the morning, A at night’ is good, but want the skin to adapt to VC, VA. This kind of significant guy level of composition also needs A slowly tolerated process. There is a lot of high-concentration VC essence on the market, but the tolerance requirement for the skin is very high. If the skin is not thick, it is recommended to start with a low concentration and choose VC derivatives, which can be effective and also ensure mild and not hurt the skin. And use at the same time to do a strict sunscreen.
VA components are the same; Retinoic Acid is difficult to control, and direct use is likely to cause skin redness, peeling, pain, and other side effects. Therefore, skin care products use indirect ingredients, such as Retinol. These ingredients convert the skin into Retinoic Acid, which can also play an anti-aging role. Novices are advised to establish tolerance starting at 0.1% to 0.3% and increase concentration after five to six weeks of complete skin adaptation. Of course, use VA ingredients simultaneously to do excellent moisturizing.
However, it’s not for everyone, and the following people are advised not to try it yet.
  • People with impaired skin barrier
  • Cannot undertake strictly bask in
  • People who can’t stick it out for long
  • Pregnant people and pregnant women should not use
Finally, I want to tell you that ‘C in the morning, A at night’ is a kind of skin care collocation, but it is not necessary to follow this formula for skin care. Some people use the effect as okay; others are not suitable. It’s all about choosing the proper skincare regime for you.