Dermatologists tell you how to whiten your skin effectively!

Has the skin color not changed? Perhaps these are the reasons

Half of winter has passed, have you whitened your tanned skin from summer? Has the whitening industry been put on the agenda? Today we will talk about the reasons why the whitening effect is not obvious and how to achieve efficient whitening.

I. Has the skin color not changed? Perhaps these are the reasons

1.Insufficient sun protection

This should be the easiest thing to think of. No matter how much whitening is done at night without sun protection during the day.

Especially for some products that have the property of exfoliating keratin, the newly exposed skin is very delicate and fragile. If sun protection is not done well at this time, the irritation to the skin will be greater.Don't think that whitening is not necessary in winter because ultraviolet rays are still strong. There is also the so-called "anti blackening" after medical beauty, inadequate sun protection is also an important reason.

2.Whitening ingredients do not match the Chinese zodiac sign

Everyone's individual differences are huge, and their reactions to each ingredient are also different, so the same whitening ingredient may have significant differences in its effectiveness on different people's faces.Just like niacinamide, it has a significant whitening effect on many people, but some people use it for a long time without any visible changes in skin color.So it's normal to encounter ingredients that are not suitable or effective. Try a few more and you will eventually find the useful ingredients.

3.Using high concentration VC products

Some sisters may be confused. It's a whitening product,why does my face turn yellow after I use it?

At this point, you can think about whether you have used high concentration VC products, which may really dye the stratum corneum yellow.

However, this yellowing is temporary, as long as it is stopped for a period of time, the yellowed stratum corneum will recover.

4.Food can also affect skin color

This situation is relatively rare but it can also affect skin color.

If you particularly enjoy eating vegetables rich in carotenoids such as carrots, pumpkins and spinach, you may really become a little yellow person. Some foods rich in carotenoids can also have a "color changing" effect when eaten in excess.

Coloring function

Carotenoids are an effective natural coloring agent with excellent coloring function due to their special conjugated structure in the molecule. The coloring range is yellow and orange red, with strong coloring power and stable,uniform color. They can coexist with elements such as potassium, zinc and calcium without changing color. Carotenoids mainly function as a source of vitamin A for nutritional metabolism in the body, while lutein mainly serves as a pigment with coloring function, carotenoids also have a certain coloring function.

However, these can all be metabolized and long-term consumption of these foods in large quantities is necessary for this situation to occur. Everyone can still confidently eat vegetables on a daily basis!

II. Understanding the principle of blackening is essential for efficient whitening

1.The principle of skin darkening

The darkening of skin tone is actually due to the accumulation of melanin in the stratum corneum. So where did it come from? The production of melanin is actually a form of self-protection for the skin. When the skin is stimulated by ultraviolet radiation, an enzyme called "tyrosinase" is activated, triggering a series of reactions that provide power to melanocytes in the epidermis, ultimately producing melanin.

The process of melanin production involves a series of complex reactions, but enzymes related to tyrosinase play the most critical role. The generated melanin gradually transfers upwards from the epidermal layer of the skin.When it reaches the stratum corneum, the skin color visually darkens.

It takes about 28 days for melanin to be manufactured and transported to keratin.

2.The most effective and fundamental approach

The vast majority of whitening products act on certain links in the pathway to achieve whitening effects. The most effective and fundamental approach is to inhibit tyrosinase and directly cut off the production of melanin.

On the one hand, it is possible to do a good job of sun protection to avoid skin irritation from ultraviolet rays and prevent tyrosinase from being awakened. On the other hand, by interfering with tyrosinase, its efficiency in producing melanin can be reduced.

Arbutin: The ingredient itself has a certain degree of irritation.Some scholars believe that it may produce hydroquinone during use (a banned ingredient in China with significant side effects and irritation).

Kojic acid: it is difficult to store, unstable, will fail under strong light, and can only be used at night.

377: At high concentrations, it can be more irritating and unfriendly to sensitive muscles.

Whitening is not a one-time effort, only by persisting can have good results.