The main ingredients of sunscreen contain a variety of different types of sunscreen, usually divided into chemical sunscreen and physical sunscreen, chemical sunscreen usually contains dibenzoylmethane, dimethyloctyl, cinnamate, benzophenone and so on.
This kind of sunscreen sun protection index is very high.
In addition to this there are physical sunscreen, this type of sunscreen usually contains titanium dioxide, pearl powder, zinc oxide and so on.
The taste of this yellow cream will smell like a rusty iron.
The actual sunscreen can be spotted on different parts of the body, and then pushed with the fingertips.
Then painted in a wide range of circles to even out the sunscreen cream, and then finally reinforced by rubbing the tip of the nose easily sunburned parts.
For physical sunscreen, it is better to use the patting method, taking an appropriate amount between the fingers or palm, gently haloing it.
Then patting it on the parts that need sun protection and patting it evenly.
For girls, it is a question of which one to use first, foundation or sunscreen.
The first thing you need to do is to apply the sunscreen first and then apply the foundation, which often causes "mud-slinging" and destroys the sunscreen film.
This can be avoided by using a sunscreen foundation in one go.
What's more, it will not be like sunscreen because of the transparent "invisible", and the amount of too little, uneven application of the phenomenon.
The following points should be noted when applying sunscreen:
1. choose the appropriate factor of sunscreen
The higher the SPF value, the longer the sun protection time.
SPF value, that is, the sun protection factor, the average yellow skin can withstand the sun for 15 minutes without being burned.
Then the use of SPF15 UV light supplies, there will be about 225 minutes of sun protection time.
But accordingly, the greater the sunscreen index, the burden on the skin will be much heavier.
So we are choosing, not the greater the multiplier the better.
2. Use the appropriate time
Do not go out before applying sunscreen.
Sunscreen and general skin care products, it takes a certain amount of time to be absorbed by the skin.
So 10 to 20 minutes before going out should be coated with sunscreen, and 30 minutes before going to the beach should be coated.
3. SPF value is not cumulative
Apply two layers of SPF10 sunscreen, only one layer of SPF10 protection effect.
4. It is best not to mix different brands of sunscreen at the same time
Mixing them will increase the possibility of skin allergies.
The ingredients of each brand of sunscreen are inconsistent, and if mixed, overlapping on the skin.
It may cause the ingredients to interfere with each other or mutually exclusive, reducing the effectiveness of the sunscreen, and even cause skin allergies.
5. Do not reduce the effect due to improper preservation
If subjected to heat or direct sunlight for a long time, the effect of sunscreen may be reduced.
Do not use spoiled sunscreen cosmetics, because it is not only sunscreen effect decreased, and more likely to stimulate the skin.