Hormone Health · Saliva-Based Diagnostics

A rapid, saliva-based lateral-flow assay for free testosterone.

BBBT is building a screening tool that brings hormone-level insight out of the lab and into the moments that matter — at home, at the clinic, or anywhere a finger-prick isn't the answer.

Semi-quantitative visual read Saliva matrix · no blood draw Monitoring-grade · not diagnostic ISO 13485 design controls
What we're building

Built around the biology that matters.

Saliva mirrors the free, biologically-active fraction of testosterone — the part that actually drives how someone feels and functions. We measure that directly, without the noise of total-hormone lab work.

01

Competitive LFA format

Antibody + testosterone-conjugate detection designed for the small-molecule regime (~288 g/mol) where conventional sandwich assays don't work.

02

Visual read, optionally fluorescent

Optimized first for naked-eye readout across the 80–350 pg/mL salivary range. Fluorescent chemistry is the upgrade path when sensitivity demands it.

03

Internal control built in

Every strip carries a control band so a negative result can never be confused with a failed test. The signal you read is the signal you trust.

04

Made for monitoring, not diagnosing

Positioned as a screening and monitoring tool — a faster regulatory and clinical path than a diagnostic claim, and the use case that fits the modality.

"
The free fraction is the one that does the work. Measuring it where it lives — in saliva — shortens the loop between "how am I feeling?" and "what's actually happening?"

— BBBT, on why the assay targets free testosterone, not total.

Where we are

Development status

BBBT is currently in feasibility and reagent selection with our development partner. Public updates will follow as milestones clear internal review.

Phase
Feasibility & reagent selection Active
Format
Competitive LFA · saliva matrix
Target range
80 – 350 pg/mL (salivary free T)
Read-out
Visual → fluorescent upgrade path
Regulatory posture
Monitoring / screening Pre-submission
Design controls
ISO 13485 · 21 CFR 820 In place
Get in touch

Partner with BBBT

We're selective about development and distribution partners. If you're working in men's health, clinical diagnostics, or direct-to-consumer hormone care — let's talk.

Partnerships
partners@bbbt.io
General
hello@bbbt.io
Headquarters
Sagle, Idaho · USA