

Breath Ketone Monitor & Mobile App
$299.00
- Bluetooth enabled Biosense Device with unlimited testing
- Micro USB charging cable
- 2 – replacement mouthpieces
- Free app with personalized ketone data and personalized fasting clock
- Protective neoprene sleeve
Better visibility. Better Results.
Introducing PrecisionFast: Real user data for personalized fasting
0-4 ACEs
Low Ketones

Still burning glucose as primary fuel.
Now in ketosis and burning fat for fuel.
Mental clarity and reduced inflammation, benefits galore.
Deeper ketosis, especially through fasting, driving cellular regeneration.
5+ ACEs
Weight Loss

Still burning glucose as primary fuel.
Now in ketosis and burning fat for fuel.
Mental clarity and reduced inflammation, benefits galore.
Deeper ketosis, especially through fasting, driving cellular regeneration.
11+ ACEs
Cognitive & Anti-Inflammatory

Still burning glucose as primary fuel.
Now in ketosis and burning fat for fuel.
Mental clarity and reduced inflammation, benefits galore.
Deeper ketosis, especially through fasting, driving cellular regeneration.
15+ ACEs
Health Span & Autophagy

Still burning glucose as primary fuel.
Now in ketosis and burning fat for fuel.
Mental clarity and reduced inflammation, benefits galore.
Deeper ketosis, especially through fasting, driving cellular regeneration.
REAL TESTIMONIALS
Hear From Industry Thought Leaders
Biosense enables behavior modification with accurate metabolic insights. Hear what biohackers, patients, and consumers have to say about their experience with Biosense.
HOW Biosense WORKS
Behind the Technology
Biosense provides proprietary accuracy to replace blood measurements to track your fat metabolism as it changes with food and activity. How? Through our patented deep lung sampling process, which provides accurate and reproducible measurements by correcting for natural variations in exhalation time and lung capacity across individuals while limited biosensing to the highest concentration of acetone.
Biosense is the only breath monitor to provide this patented technology. Our clinical data shows a high full-day correlation between blood and breath ketones with Biosense. The full story, all day.
- Features
- Technology
- Specification
Patented Deep Lung Sampling technology measures breath acetone levels from only the latter part of the exhalation to gain the most accurate breath acetone detection.
Its sleek design fits in the palm of your hand and comes with a protective neoprene sleeve, two replacement mouthpieces, and a micro USB charging cable.
Your daily ketone trends let you easily see the impact of different foods and exercise routines on your ketone levels. You can see how long and deep you were in ketosis on any given day.
The Ketone Score is a summary of the depth and duration of your nutritional ketosis each day. The deeper your ketosis and the longer you maintain it, the higher your ketone score.
Discover how different foods and exercises affect your metabolism by testing right before and then again 1-3 hours after eating or exercising.
Battery life depends on your testing frequency. With an average frequency of 3-5 times per day, your battery will last up to 5 days.
The BIOSENSE™ device uses patented Deep Lung Sampling technology to perform breath acetone measurements. The consistent sampling of only the latter part of the exhalation enables the most accurate level of breath acetone detection for nutritional ketosis monitoring. The required deep lung sampling process provides accurate and reproducible measurements by correcting for natural variations in exhalation time and lung capacity across individuals. BIOSENSE™ is the only breath monitor to provide this patented technology. Clinical data shows a high full-day correlation between blood and breath ketones.

