Bioidentical ketone fuel
Find your edge.
The same molecule your body makes during fasting, now in a bottle. Sustained energy and focus without the crash.
In partnership with
Why ketones
When you fast or exercise hard, your liver produces ketones for fuel. Tecton is that same molecule, R3HBG, wrapped in a patented liposomal shell so it actually absorbs.
Hyrox World Champion · 2025
Trained and raced on Tecton.
Every event of the 2025 season, fueled by R3HBG.
How R3HBG works
The first ketone supplement that actually absorbs.
Most exogenous ketones never reach your bloodstream. R3HBG is the bioidentical molecule your liver makes during fasting, wrapped in a patented liposomal shell so your body can actually use it.
01 / 03
You already make ketones.
When you fast or train hard, your liver produces beta-hydroxybutyrate — a clean fuel your brain and muscles prefer over glucose. Tecton gives you that fuel on demand.
02 / 03
R3HBG is that same molecule.
Scientifically developed, patent-protected, NDI No. 1354. Bioidentical to what your body produces, available without three days of fasting.
03 / 03
Liposomes get it absorbed.
Most exogenous ketones pass straight through. We wrap R3HBG in a liposomal shell so it survives digestion and reaches your bloodstream intact. No salt loading, no GI distress.
We've published the studies, the manufacturing details, and the third-party tests behind every claim.
Products
Clean energy that actually lasts.
Hydration that does more than hydrate.
Think clearer, longer.
Your metabolism, working with you for once.
Three jobs. One molecule.
Not sure which one fits?
Research & Updates
Read the research yourself.
June 23, 2026
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18 Mg Concerta: A Patient's Guide to the Starting Dose
Starting 18 mg Concerta? Our guide explains what it is, why it's a starting dose, side effects, and what to expect. Medically reviewed info for patients.
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Beta Hydroxy Ketones: Cognitive & Physical Power
Unlock the power of beta hydroxy ketones (BHB). Explore ketone types, fuel vs. signaling, and how to optimize them for cognitive & physical performance.
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Unlock Energy & Focus with Ketone Ester Supplement
Science-backed guide to the ketone ester supplement. Boost energy & focus, understand its benefits over salts, and learn safe, effective use for 2026.
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Exogenous Ketones and Weight Loss: A Science-Based Guide
Explore the science of exogenous ketones and weight loss. Learn how they affect appetite, energy, and metabolism, and get an evidence-based framework for use.
Measured performance
Go 28% farther on the same effort.
Cox et al., 2016 — Cell Metabolism