oxidant

O2 isn't flammable and doesn't provide fuel unless the oxidant is something very electronegative like fluorine.

Anti-oxidant supplements are now generally believed to provide no real benefit, and might even have detrimental effects.

For reference, it takes over 10 times of propellant and oxidant mass to put something in LEO.

The filler consists of a pyrotechnic metal-oxidant mix of magnesium or aluminium, and an oxidizer such as ammonium perchlorate or potassium perchlorate.

Although NAC is an anti-oxidant, the benefit in CF is thought to be from the ability of NAC to break down thick mucus.

Coconut oil is perhaps the best with its anti oxidant and microbicide properties.

In case you are serious though, NaClO (aka Chlorox) is an oxidant too.

It was related to the oxidant/anti-oxident craze of the past decade or two.

Oxygen may be the most popular oxidant, but not the only one.

Here's a link to a metastudy about gastro-intestinal cancer and anti-oxidant supplements.

Tire wear right now is worse, because tires contain an anti-oxidant that gets oxidized into a compound that is highly toxic to aquatic life.

I drink it several days a weak, in part for the general anti-oxidant health benefits, in part for the caffeine boost.

There was a pop-sci article around a decade ago, still within the "fight free radicals by buying our anti-oxidant products" craze, that posited that breathing flatulence could also help fight cancer because hydrogen sulfide damaged cancer cells.

I can recommend Ben Goldacre's "Bad Science" - I read this in book form, any time I see "anti-oxidant" in the context of nutrition I also start to engage full skepticism mode.