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We use AOB as our core measurement for testing biome-friendliness. AOB are one of the most sensitive microorganisms on our skin. Because of this, we believe that testing against AOB is a great measurement for the overall impact on the skin biome. If an ingredient or product is friendly to AOB, then it will also be friendly to the other delicate microorganisms of the biome as well.

We've developed a patent pending assay to screen ingredients and the final formula to ensure that they are A-OK for AOBs.

Early on we found that preservatives have a negative affect on AOB. This shouldn't be surprising because preservatives exist for the sole purpose of preventing bacteria and other microorganisms from growing in products. No wonder AOB didn't do well with preservatives, and why you won't find them in current biome- friendly formulas.

Historically, the motivation for including preservatives is a good one, but we didn't know until know what potential effect preservatives have on our skin biome. This is a new factor to consider in product formulation.
The Biome-Friendly ingredient selection process starts long before the screening process above. It starts when sourcing ingredients. Many raw materials on their own come with a preservative. We have to actively seek out unpreserved raw materials to test and use in development.
All Biome-Friendly products come with a unique label. This label verifies that its been tested, but also includes important information about the expiration date and the lot number for the product.

Because Biome-friendly development is for products that nurture and feed a living ecosystem, without ingredients meant to inhibit or kill. This is why all biome- friendly products come with an expiration date that's counted in weeks, not years.