How I Spent 8 Years Engineering a Natural Deodorant That Works

I didn't set out to start a brand. I set out to solve a problem I couldn't buy my way out of.

I'm a father of five with the kind of skin that reacts to most deodorants, and the kind of body that actually sweats. Every natural option I tried failed one of those two tests, it either burned my skin or quit by noon. The conventional options worked, but they worked by blocking my sweat glands with aluminum, which I didn't want. There was no third door. So I built one.

Eight years. Sixty-eight formulations.


This wasn't a weekend project with a white-label supplier. It was eight years of formulation work and 68 distinct formulas, most of which failed, which is the point. Each failure taught the next version something specific: this active irritates at this concentration, this combination loses performance under heat, this pH range works and that one doesn't.

8
years in development
68
formulations, most of them failures

I wasn't mixing a deodorant. I was engineering a system, and the difference matters. Mixing is combining ingredients that sound good. Engineering is testing what actually holds up when someone sweats through a long day, then redesigning when it doesn't.

Go after the odor. Don't mask it, don't block it.


The principle the whole thing is built on: don't rely on fragrance to do the work, and don't block sweat with aluminum. Go after the odor itself, at the bacterial and enzymatic steps where smell actually forms.

I didn't mix a deodorant. I engineered one.

That became BioShield™, the zinc-based system behind our formulas, including Core, Max and Sensitive. It's not a botanical that smells nice and hopes for the best. It's a multi-active system designed for tolerance and performance at the same time, the two things I could never get in one product.

The proof I needed before I'd sell it


I wasn't going to ask anyone to trust a claim I couldn't back. So the formula went through independent dermatologist testing before it ever went on sale.

Dermatologist Tested. Since then, the people who try it keep reordering it, which, for a category built on disappointment, is the outcome I care about most.

Zaffré exists because the product I needed didn't. Eight years later, it does, and it works whether your problem is skin that reacts, a body that sweats, or both.

— Ami, Founder