Questions, answered.

Your first order ships in 3-5 business days. Your subscription continues monthly from the date your first kit ships. You can cancel, skip, or delay any shipment anytime through your account.

Your card is charged when you place the order. Subsequent monthly orders are charged 3-5 days before each shipment.

Yes. Cancel, skip, or delay anytime in your account. No portals, no auto-renewal traps, no friction.

Email us. We process refunds within 48 hours under the money-back guarantee below.

30 days from the date your first kit arrives. If Fenn Method does not work for you, we refund your first order. We cover return shipping.

Standard breath mints mask odor with flavor. Fenn Method is an oral probiotic, designed to support the bacteria your mouth actually needs.* 550mg of xylitol is disclosed on every label, well above what most oral care products offer. The probiotic strains (K12 and M18) are clinically studied, not just listed on a label.

Orders ship in 3-5 business days via standard shipping (included free). You receive a tracking number by email once your kit is on its way.

Yes. The ingredients are well-studied for daily use. Xylitol at our dose is well within established safe ranges. If you are pregnant, nursing, or taking medication, check with your dentist or doctor.

Four things justify the difference. (1) 550mg of xylitol per oral probiotic mint, printed on the label. Most products use trace amounts or do not disclose at all. (2) Two clinically studied probiotic strains paired together (K12 and M18), not a single strain. (3) Zinc citrate for an immediate freshening step the probiotic strains cannot deliver on their own. (4) Every claim on this site links to a peer-reviewed study.

V1 ships in a single mint flavor. We are testing variants based on customer feedback. Email us if you want a different flavor.

Four active ingredients: Streptococcus salivarius K12 (1 billion CFU), Streptococcus salivarius M18 (1 billion CFU), xylitol (550mg), and zinc citrate (3mg). No artificial colors or sweeteners.

The K12 and M18 strains are sourced from a specialist probiotic supplier in New Zealand. Xylitol is from non-GMO birch and corn cob extraction. Manufactured in the U.S. at a cGMP facility.

Yes. Every batch is third-party tested for potency, purity, and contaminants. Certificate of Analysis available on request.

Vegan and gluten-free, yes. Kosher certification in process.

Yes. Fenn Method is designed for daily use alongside any other supplement routine. If you are taking medication, check with your dentist or doctor.

U.S. shipping included on your first kit. International coming at launch.

United States at launch. Canada within the first quarter post-launch. International rollout dependent on regulatory clearance per market.

The ingredients are generally regarded as safe at our doses, but we are not your doctor. Check with your OB or midwife before adding any new supplement during pregnancy.

BLIS K12 has been studied in children specifically (Di Pierro 2016, upper respiratory health). We are not currently marketing the product to children. If you are considering it for a child, check with your pediatrician.

Probiotics are typically taken at different times of day from antibiotics. If you are on a course of antibiotics, follow your doctor's timing guidance.

Andy. The founder note on the About page covers the why, the how, and the honest skeptic frame.

Trust comes from citations, not founder photos. Photos are on the About page where the visitor specifically went to look.

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