Is zinc oxide a good SPF?

Zinc oxide is a stable sunscreen ingredient that is much less likely than chemical ingredients to break down in the bottle or on your skin. Zinc oxide does not irritate sensitive skin. Zinc oxide is not absorbed into your body; it stays on your skin where you put it and where it can protect you from the sun.

What is the SPF of zinc oxide?

For every 1% of each active ingredient, you get a certain amount of SPF units. As you can see in the chart above, 1% zinc oxide gives you 1.6 SPF units, while 1% titanium dioxide gives you 2.6 SPF units.

Is zinc oxide sunscreen good for skin?

“Zinc oxide is considered one of the best sunscreen ingredients we have access to. Not only does it block both UVA and UVB rays – which are responsible for causing burns, skin damage, and skin cancer — but it’s completely photostable and resistant to water.

Does zinc block UVB?

Zinc oxide is the only single active ingredient that offers excellent protection from UVA and UVB rays. When using zinc oxide in a sunscreen no other active ingredients are needed.

Is SPF 100 too much?

Sunburn protection that is only marginally better. Properly applied SPF 50 sunscreen blocks 98 percent of UVB rays; SPF 100 blocks 99 percent. When used correctly, sunscreen with SPF values between 30 and 50 offers adequate sunburn protection, even for people most sensitive to sunburn.