Spf 50. But for high-SPF sunscreens theory and reality are two different things. And an SPF 45 product blocks about 98 of rays.
According to Spencer an SPF 15 product blocks about 94 of UVB rays. And an SPF 45 product blocks about 98 of rays. Neutrogena Beach Defense Sunscreen Spray SPF 50 Water-Resistant Sunscreen Body Spray with Broad Spectrum SPF 50 PABA-Free Oxybenzone-Free Fast-Drying Superior Sun Protection 65 oz 48 out of 5 stars 6256.
What the SPF Number Means.
The SPF Sun Protection Factor scale is not linear. The average persons skin begins to burn after 10 to 20 minutes of sun exposure. The same idea applies to SPF 50 sunscreen although skin doctors warn that the overall protection from the suns ultraviolet rays arent substantially higher blocking only an extra 1percent of UVB rays. That may seem like a small difference until you realize that the SPF 30 is allowing 50 percent more UV radiation onto your skin.