Should I spray the sunscreen spray half an hour in advance? How much sunscreen spray should I spray to get enough?

Compared with sunscreen, sunscreen spray is easier to carry and use. When using it, you only need to open the product and spray it on the skin. Sunscreen also needs to be applied in a certain environment. So, does sunscreen spray, which is so convenient, need to be used half an hour in advance?

Should I apply sunscreen spray half an hour in advance?

need. Sunscreen products are generally used 30 minutes before going out, so that the best effect can be achieved.

If you are going to go out, it is recommended to use sunscreen products about 20-30 minutes in advance. The same applies to sunscreen spray, because sunscreen spray needs a buffer time. Spraying it some time in advance can allow the sunscreen spray to better fit the skin, so that it can have a better sun protection effect.

How much sunscreen spray should be applied?

About three laps.

When using sunscreen spray, it is generally necessary to spray the sunscreen spray around the entire face three times to achieve the sun protection standard. To be more precise, the standard dosage of sunscreen is 2 mg per square centimeter, and the human face is about 350 square centimeters. The calculation result is that about 700 mg of sunscreen should be applied at a time, so as to achieve a better sun protection effect. And if the ultraviolet rays are strong, you need to reapply in time.

Introduction to PS value of sunscreen spray

1. Classification based on sun protection index SPF

SPF value, which is what we usually call sun protection factor, is the abbreviation of Sun Protection Factor. The coefficient after SPF refers to the time range within which ultraviolet radiation will not harm the skin, and is calculated based on the minimum erythema dose. Generally speaking, the higher the SPF index of a sunscreen, the longer it protects the skin. This is a concept of the duration of sun protection. Low-level sunscreen products have a sun protection index of less than SPF20 and are suitable for indoor use. Intermediate sunscreen products have a sun protection index of SPF20~30 and are suitable for outdoor use where the sun is not strong, and are mostly used for daily sun protection. High-strength and ultra-high-strength sunscreen products have a sun protection index of SPF50 and are suitable for strong sunlight, and are mostly used for seaside vacations.

ps: 1 times the sun protection can protect for 15 minutes, based on this calculation, SPF 30 times = 15 times 30 times divided by 60 minutes = 7.5 hours

2. According to the defense effect PA, ultraviolet rays that cause damage to human skin are divided into UVA and UVB. UVB can cause sunburn and redness in a short period of time; UVA can penetrate the surface of the skin, causing wrinkles and causing skin aging. The PA value of a sunscreen product is an index that indicates how well the product blocks long-wave UVA in sunlight. The protective effect of PA is divided into three levels, namely PA+, PA++, and PA+++. PA+ means light sun protection, PA++ means moderate sun protection, and PA+++ means strong sun protection.

ps: The more + signs there are, the stronger the ability to resist UVA, and the stronger the ability to prevent tanning and ultraviolet rays.

Sunscreen spray is better to use and does not make you look whiter

Naris Up Sunscreen Spray

Its sun protection index is SPF50 PA++++ SPF protection SVB PA protection UVA ~ The smell is a fresh rose scent. It has a good moisturizing effect, a high sun protection value, and is safer to use without any burden on the skin. Another great advantage of Naris sunscreen spray is that it does not require the trouble of makeup before and after. You can spray it anytime, anywhere, and it will not smudge your makeup or make it greasy.

Thai milk whitening sunscreen spray 150ml

It can be used on the face and body. It doesn't dry out the skin or make it look pale. It looks very natural. Are there trial packs in the store?

A must-have when traveling, a secret weapon for girls to avoid getting tanned. SPF50+ Effective sun protection for 12 hours PA+++ Delays skin tanning by 8 times More than 60 kinds of natural skin care ingredients 12 hours strong makeup locking 360-degree rotating spray, recommended by many Douyin influencers.

Shiseido Anessa Gold Sunscreen Spray

If you need to add sunscreen, you need a spray type. It is also very convenient to use on the whole body. This is the new version of the gold bottle spray. It does not contain mineral oil and has a stronger sun protection ability than the old version. It is waterproof and sweat-proof. It feels cool when sprayed on and is super comfortable.

NARISUP Lavender Spray Limited Edition 80G

Compared with the pink version, lavender extract is added to make the skin more moisturized and transparent, and also has a whitening effect. Not only does it protect against the sun, it can also soften pores, dullness and other uneven skin tones, increase transparency, create healthy skin with a natural glow, and also has a beautifying effect. Combined with 10 moisturizing ingredients, it is absolutely moisturizing. Shake before spraying, the lavender purple spray can be spread by hand, it is very dry. It can be used on both the face and body, and it is OK to apply sunscreen with makeup on.

BBL Nude Sunscreen Spray

(The same sunscreen as the Resurrection Herb Mask brand) It is colorless, delicate and refreshing, can be used after makeup, is completely sufficient for outdoor use, forms a film quickly and is very refreshing, and can be re-sprayed with makeup on.

JM Sunscreen Spray

JMsolution sunscreen spray new technology! Using the latest technology! Different from other sunscreen sprays! Its technology uses DEM! And traditional sunscreen spray! Including Japan's Naris, which was popular in the purchasing industry last year, it also uses LPG. This Jm sunscreen spray not only protects against the sun, but also nourishes the skin and has the effect of whitening! Sun protection, nourishing and lasting up to 12 hours! No shine, dries quickly! No tanning! This is the biggest feature of this product!