Most natural deodorants do one of two things: cover odor with fragrance, or raise your skin's pH with baking soda until bacteria struggle. Fragrance evaporates. Baking soda irritates a lot of people. Either way you're relying on a single lever.

Zaffré's BioShield™ formulas run several actives in parallel, led by a zinc mineral that binds the odor molecules bacteria release and holds onto them. Nothing is masked, and nothing has to be tolerated.

An antiperspirant uses aluminum salts to form temporary plugs in your sweat ducts, so less sweat reaches the surface. A conventional deodorant usually covers the smell with fragrance.

Zaffré does neither. You sweat normally, and the odor is handled at the chemistry instead of at the nose.

Yes, and the how is worth knowing. Sweat itself is nearly odorless. The smell comes from skin bacteria breaking sweat down into small, volatile compounds, mainly thioalcohols and short-chain fatty acids.

Zinc chloride hydroxide works by adsorption: it binds those compounds and converts them into larger molecules that can't become airborne, with a secondary effect of limiting the bacterial growth producing them. A molecule that can't evaporate can't reach your nose. Full detail in How Zinc Deodorant Works.

No. There's no aluminum in any Zaffré formula and nothing that blocks a sweat gland. You keep sweating and cooling normally. If your goal is dry underarms rather than odor control, an antiperspirant is the product you want, and we'd rather say so than sell you the wrong thing.

Because it isn't the same chemistry. Tea Tree runs on tea tree and sage botanicals with zinc oxide, on a baking soda base. It doesn't contain the zinc chloride hydroxide the other three share, so it keeps its own name rather than borrowing one it hasn't earned.

Max is the bigger formula: more of the zinc active, magnesium in support, a four-oil base and a dry-touch slip agent. Twenty-six ingredients.

Core is the everyday one: magnesium-forward with the zinc alongside it, a single apricot kernel oil base, fifteen ingredients, and a drier, more matte finish. It costs less because it's made of fewer things, not because anything was held back.

Same price, different chemistry. Max uses magnesium hydroxide to neutralize the acidic compounds behind the smell. Sensitive leaves magnesium out entirely and uses triethyl citrate, which works inside your skin's own acidity rather than raising it. Choose on your skin, not your budget.

Sensitive. It's the only formula we make with no alkaline active at all, no baking soda, no magnesium, no alcohol, and it's Dermatologist Tested. For skin that reacts, the safest amount of an alkaline ingredient is none.

Core and Max contain magnesium hydroxide, well tolerated by most people but still a mineral base. Tea Tree contains baking soda. If your skin has reacted before, start with Sensitive.

No. Scent is preference; the odor control comes from the actives underneath it and doesn't change between scents.

• Clean Slate, a classic powder-fresh note. Soft, familiar, and built to fade rather than linger. On Core, Max, and Sensitive.
• Fragrance-Free, with no scent blend added at all. On Sensitive.
• Tea Tree Fresh, clean and green with a balanced botanical profile. On Tea Tree.

All of them stay close to the skin by design.

The comparison page puts all four side by side in about a minute, and the buyer's guide walks through it as four questions.

That's what it was built for. Because several actives work in parallel rather than one carrying the whole load, the formula has depth when conditions get harder, heat, movement, a long shift, instead of a single point of failure.

What it won't do is stop the sweat itself. Nothing without aluminum does.

Because performance isn't a stopwatch, and those numbers are marketing rather than measurement. We design for consistency through real conditions and say All-Day Protection, which is a claim we're willing to stand behind.

A thin layer on clean, dry skin, once a day. Applying at night works well, it gives the formula hours to settle on still skin and it's still working in the morning. More in how to apply natural deodorant.

Shaving leaves micro-abrasions, and anything applied immediately after can sting, even a gentle formula. We'd suggest shaving at night and applying in the morning, or simply giving it a few minutes.

On feel: Sensitive is the gentlest thing we make. No sting, no burn, no grit.

Our formulas are aluminum-free, and aluminum is the usual cause of the yellow underarm staining people associate with antiperspirants. Zaffré applies invisibly and dries down without transferring. More in does natural deodorant stain clothes?

A little goes a long way, and most people find one 3.2 oz stick runs two months or more depending on how much they use.

Not to our formulas. If you're coming off an antiperspirant, your sweat glands go back to normal output for the first few days, which can feel like more sweat, and your skin bacteria rebalance over a week or two.

But the miserable “detox” people describe is usually baking-soda irritation, not adjustment, and there's no baking soda in Core, Max, or Sensitive. More in do you need to detox your armpits?

It means the BioShield formulas, Core, Max, and Sensitive, went through independent dermatologist testing before going on sale. It's a tolerance standard, not a performance claim, and it's the only dermatologist language we use.

Yes. No animal-derived ingredients, and we never test on animals.

Our scent blends comply with IFRA standards and are used at low levels, built to fade rather than linger. If you'd rather have none at all, Sensitive is offered fragrance-free with no scent blend added.

On the ingredients page, which carries the complete INCI list for all four formulas and explains what each ingredient does. That page is our single source of record; if anything anywhere disagrees with it, it's right and the other thing is wrong.

Higher-cost actives, more complex ingredient architecture, and tighter formulation tolerances, across eight years and sixty-eight iterations. Cheap formulas are easy to scale. This one wasn't.

Core exists at $22 for people who want the same zinc system on a simpler base.

Yes. Formulated and manufactured in the USA.