The difference between 30 times and 50 times sun protection is actually the difference

There are differences in texture, safety, sun protection durability and suitable places for 30 times and 50 times sun protection. The higher the SPF index, the greater the protection it provides to the skin.

The difference between 30 times and 50 times sun protection

SPF30 products are lighter and more breathable than SPF50 products, because the higher the SPF value, the worse the permeability. SPF30 products are safer than SPF50 products because the higher the SPF value, the more chemical sunscreen is added, and this type of sunscreen is corrosive. The more added, the more corrosive it is.

What does 30 times and 50 times sun protection mean?

30 times and 50 times sun protection generally refers to the sun protection index of sunscreen, and the sun protection index is a detection index that measures the defense ability of sunscreen against ultraviolet UVB in sunlight, indicating the sun protection effectiveness of sunscreen products. Assuming that without applying sunscreen, the skin starts to turn red after 10 minutes of sun exposure, a product with an SPF of 50 can protect your skin for 500 minutes, while a product with an SPF of 30 can protect your skin for 300 minutes.

Should I buy sunscreen for 30 or 50?

When purchasing sunscreen, it is best to choose products with 100% natural plant ingredients or physical sunscreen products with a single ingredient. The sun protection factor (SPF value) should be at least 15. SPF8~20 is suitable for daily use, SPF20~50 is suitable for outdoor use. PA+ is suitable for daily use, PA++ is suitable for outdoor use, and PA+++ is suitable for sunbathing. Most of the sunscreen products on the market are synthetic products of physical and chemical sunscreens. Physical sunscreen mainly reflects, refracts or scatters ultraviolet rays to prevent them from directly contacting the skin. Chemical sunscreen mainly absorbs ultraviolet rays. The principle is to absorb ultraviolet rays and then release them in a lower energy form to prevent ultraviolet rays from directly damaging the skin.

How to read the sunscreen index

When buying sunscreen, you will see UVA, PA value, UVB, and SPF index written on the bottle. UVA is a type of ultraviolet light. It can penetrate the skin, destroy the internal structure of the skin, cause wrinkles and fine lines, make the skin loose and accelerate aging. The PA value refers to the sun protection effect, and the number of "+" signs is used to distinguish the level of sun protection effect, that is, PA+ means effective, PA++ means very good sun protection, and PA+++ means very good. SPF is the sun protection factor, which indicates how long sunscreen products can provide protection from the sun. The sun protection index on the market now ranges from 6-40 times. The larger the multiple, the longer the sun protection time and the better the effect.