Zinc topical

Zinc oxide cream is a topical skin protectant — a long-established, FDA-recognized active ingredient used in diaper-rash barrier creams, minor-skin-irritation products, and mineral (physical) sunscreens. The percentage listed on the label (commonly 10-40%) describes how much of the cream is zinc oxide by weight, which is a different kind of number from the elemental-zinc milligram dose on an oral supplement — the two aren't comparable, and this cream isn't swallowed.

What zinc oxide cream is used for

Zinc oxide's two main jobs on skin are forming a physical barrier that keeps moisture and irritants (like a wet diaper) off the skin, and reflecting/scattering UV light as a mineral sunscreen active. Both uses rely on the same property: zinc oxide is an inert, insoluble mineral that sits on the skin's surface rather than being absorbed into it. That's why it's the standard active in diaper-rash creams (often labeled 10-40% zinc oxide) and in "mineral" or "physical" sunscreens, as distinct from chemical UV filters.

What the percentage on the label means

A "zinc 40% cream" is 40% zinc oxide by weight in the total formulation — a higher percentage generally means a thicker, more opaque barrier, which is why some diaper-rash pastes run as high as 40% while everyday moisturizing sunscreens often use less. This is a formulation strength, not a dose the way an oral supplement's elemental-zinc milligram figure is — see how to choose a good zinc for how that oral-dose math works, since it doesn't apply here.

"Non-nano" zinc oxide

"Non-nano" describes the particle size of the zinc oxide used in a sunscreen formulation — larger mineral particles, as opposed to the smaller "nano" particles some sunscreens use to reduce the white cast on skin. It's a cosmetic-formulation and marketing detail specific to topical products, not a concept that applies to swallowing a zinc supplement.

Topical zinc oxide vs. an oral zinc supplement

These are two different products doing two different jobs. Topical zinc oxide sits on the skin's surface as a barrier or UV reflector and isn't meaningfully absorbed into the body the way a swallowed supplement is. An oral zinc supplement is measured in elemental milligrams against the adult RDA and upper limit, covered in zinc dosage. This page doesn't review the trial evidence on oral or topical zinc for specific skin conditions like acne or eczema — that's a narrower research question covered on its own page.

Questions people ask

What is zinc oxide cream used for?

Mainly as a diaper-rash and minor-skin-irritation barrier, and as the active mineral ingredient in physical sunscreens. It works as a surface barrier and UV reflector rather than something absorbed into the skin.

What is zinc oxide cream?

A topical cream or ointment containing zinc oxide, typically at 10-40% strength, used as an FDA-recognized skin protectant. It's a different product from an oral zinc supplement, applied to skin rather than swallowed.

Is zinc oxide cream the same as a zinc supplement?

No. Both contain the compound zinc oxide, but a topical cream is formulated to sit on the skin's surface and isn't dosed or absorbed the way an oral supplement is. The percentage on a cream label and the elemental-zinc milligram figure on a supplement label measure different things.

Is zinc oxide cream good for the face?

This page doesn't review evidence for specific skin conditions or cosmetic outcomes — see zinc and skin conditions: the evidence for what the trial evidence on zinc and skin conditions actually shows.

Related reading: what is zinc, zinc and skin conditions: the evidence, and how much zinc should you take a day.