From unknown to engineered, in five steps
Intake questionnaire
Before any testing, you tell us who you are as an athlete: body weight, sport, typical session duration and intensity, training climate, GI tolerance, and goals. This shapes how we interpret your test results.
The Sweatprint™ Test
The test itself captures two numbers: your sweat sodium concentration and your sweat rate. Choose in-person testing at a partner site, or an at-home kit you use during a normal training session. Sampling across a few sessions — cool, hot, and long — lets us build a response curve and predict your needs in conditions you haven't tested yet. TODO: finalize at-home kit fulfillment and partner site list.
Analysis by our engine
Your Sweatprint™ results and intake profile run through Solute's formulation engine, which calculates the sodium, maltodextrin, and fructose ratio that matches your measured losses and carbohydrate needs — and flags which optional additives your profile supports.
Your custom formula(s)
You may get more than one formula: a race-day version, a training version, and a heat-adapted version, since sweat rate and sodium needs shift with intensity and environment.
Adaptive re-testing
As you heat-acclimatize and move through training blocks, your sweat rate and electrolyte concentration shift. We time re-testing to those thermoregulation adaptation points — individually or across a whole team — so your formula tracks your physiology instead of drifting out of date. Performance-tier athletes get this cadence built in.
What your results look like
A simplified mock readout — your actual results page includes the full breakdown for each formula variant.
Sweatprint™ Results — Athlete #TODO
- Sweat sodium concentration
- 1,240 mg/L
- Sweat rate
- 1.6 L/hr
- Formula — sodium / hr
- ~750 mg
- Formula — carbohydrate / hr
- 68g (maltodextrin:fructose 1.5:1)
- Recommended additives
- Caffeine, extra electrolytes
Illustrative sample only — not a real athlete’s data.
One test is just the start
Multi-condition sampling, race-day scenario planning, and adaptive re-testing turn a single measurement into a predictive model of how you fuel. See where Solute is headed.