1, look at the color: Pearl powder itself is not pure white, pure white and snow white are mostly made of bleach or talcum powder, which is harmful to health after long-term use. In addition, pearl powder and shell powder will have fluorescence, so this powder is not suitable for use.

2. Smell: Pearl is produced by shellfish and has an inherent biological smell. Pure natural pearl powder must have a faint smell.

3, skin smear: the finer the pearl powder, the higher the absorption rate, the more significant the effect.

Extended data:

Precautions:

1, pearl powder should not be eaten with oxalic acid foods (such as spinach) to avoid stones.

2, pearl powder is cool, so women should stop using it during menstruation, pregnant women and those with spleen and stomach deficiency and cold should use it with caution.

3. People with allergies, especially those who have been found to be allergic to pearls, should avoid using them, otherwise it will lead to allergic reactions of users, which is very harmful to users' health and needs to be careful.

Baidu encyclopedia-pearl powder

Baidu encyclopedia-pearl layer powder