Biosense Breath Ketone Monitoring System
SKU: 2570391413

Biosense Breath Ketone Monitoring System

Sale price$135.00 Regular price$150.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Biosense Breath Ketone Monitoring SystemIf youve been intermittent fasting and or eating a low carb diet to get into ketosis, what you really want to know is, how far into ketosis am I and how badly did my last snack or meal kick me down the keto ladder? How many hours of fasting does it really take to get me into high fat burning mode? Imagine if you could measure your ketones an unlimited amount of times throughout the day, with near gold standard accuracy and no finger pricks! How much

If you’ve been intermittent fasting and/or eating a low carb diet to get into ketosis, what you really want to know is, how far into ketosis am I and how badly did my last snack or meal kick me down the keto ladder? How many hours of fasting does it really take to get me into high fat burning mode? 

Imagine if you could measure your ketones an unlimited amount of times throughout the day, with near-gold standard accuracy and no finger pricks! How much more willpower and motivation would that give you to take your keto goals seriously? 

Now imagine if those results were instantaneously uploaded to a smartphone app via your blue tooth device, where they were computed and optimized for you, so you could determine EXACTLY what foods are wrecking your results, EXACTLY how many fasting hours it takes to get you into high ketosis and EXACTLY what needs to be tweaked in order to reach your personal ketogenic goals? Can you imagine? 

If you’ve been intermittent fasting and/or eating low carb to get into ketosis, you’ve pretty much had to cross (or prick) your fingers that your methods are working. Until now….

The Ketogenic Game Changer 

Every couple of years a new product shows up on the sports nutrition scene that completely revolutionizes what we think is possible. 

The latest gadget making waves is a ketogenic game changer, not only for dedicated athletes, but for anyone who’s serious about getting into ketosis, whether it’s for weight loss, longevity, mental clarity or performance goals.   

It's called Biosense and it’s bringing a whole new level of high tech to the keto game…

As the first clinically backed, non-invasive and highly accurate breath ketone monitor, Biosense has cracked the code on how to measure ketones through breath samples and is reliable enough to be compared to the gold standard of blood measurements. 

For us die hard keto enthusiasts (and the keto curious) This. Is. Huge. 

Why not just pee on a stick or get a prick? 

Sure, urine strips give you a (very simplified) ketosis range and they’re dirt cheap. For basic and beginner keto dieters, that might be okay…

 But, if you’re serious about your ketosis progress, you need multiple, highly accurate readouts throughout the day and urine strips definitely won’t cut it. 

The other option (until now) is blood readings. Definitely more accurate than urine, they work out to be pretty expensive at $1 per test. With multiple tests needing done throughout the day (i.e. multiple pricks) to get full spectrum measurements, I'm going to say, no thank you.

Even if I did decide to draw my blood over and over  (um...  #ketocrazy) those  measures would still be missing the advanced technology to graph everything out for me.  

The Science👩‍🔬 Behind The Magic

BioSense uses a patent-pending, closed flow cell technology that only opens and captures the last 5% of your breath. This process, known as deep lung sampling, provides accurate and reproducible measurements by correcting natural variations in exhalation time and lung capacity of individual people. 

Similar to glucose, ketone levels are highly variable throughout the day, requiring multiple daily measurements to obtain an accurate picture of a person's metabolic state.

This precise technology provides near-instantaneous feedback, on a scale from 0-40, highlighting everything from light to advanced to deep ketosis.

 

 

Why Track Ketones? 

There are quite a few situations in which tracking ketones can be really useful. They are:

1.) Low carb diets (paleo, keto, etc) dieters or keto lifestyle for weight loss or management – low carb/high fat (interestingly, all diets, not just keto, put you into a state of fat burn (ketosis).

2.) Longevity/healthspan focused biohackers (typically those of us edging upwards of 40 and older- but this spills over to performance athletes also). Generally healthy, happy folks that want to live, well, forever (#goals)

3.) Intermittent fasting – eat what you want but in a time restricted window (12-6pm, for example). There is new evidence that indicates a level of ketosis (not hours) is the target for primary health benefits. Longevity and fasting go hand in hand.🤝

4.) Chronic disease – Epilepsy and autism have been treated with ketosis for decades. Type 2 diabetes can now be reversed with the ketogenic diet. There is early, but solid evidence that ketosis has a strong impact on neurological disorders like Alzheimer’s and cancer (where cancer cells need glucose).

5.) Performance athlete – anyone looking to improve body composition, stabilize blood-glucose levels, become more metabolically flexible, and improve mental acuity. At The Feed, we use ketosis as a performance hack to kickstart our winter base training.

We love the mental clarity that comes with being in nutritional ketosis. Shedding some extra winter (or quarantine) weight is an added benefit of achieving ketosis through morning fasting or low carb eating. 

Now you can track ketones with multiple real-time readings, calculate time in fat-burning state and adjust your diet accordingly. It's much more motivating to stay the course when you can literally see your progress. We love it when we get 'in the green' (advanced ketosis) and even turn it into a fun competition at The Feed to see who can stay there the longest!

Excited to learn how the ketogenic diet can improve your body composition, metabolic health, mental acuity, and more? Until now, the thought of daily finger pricks and/or less than reliable breath ketone meters didn’t encourage the keto curious with open arms.  Biosense is the first clinically backed, non-invasive, highly accurate breath ketone monitor to hit the market. Similar to glucose, ketone levels are highly variable throughout the day, requiring multiple daily measurements to obtain an accurate picture of an individual’s metabolic state.


Listen to the Feed Podcast on Biosense: 

  

Included with each Biosense Device:

  • Bluetooth enabled Biosense Device with unlimited testing

  • Micro USB Charging Cable

  • 2 Replacement Mouthpieces

  • Protective Neoprene sleeve

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 2570391413

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 2123 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
sarah b
Draper, US
★★★★★ 4
Stick format is thick and difficult to rub in moderate climates
Style: SPF 50, Size: 1 count (Pack of 1)
I wanted to like it because the small stick format seemed very convenient to keep in my bag for emergency sunscreen reapplication with no chance of leaks. But I think I have learned my lesson about stick sunscreen - in order to hold together in a stick, it has to have a thick and chalky consistency. Which makes it hard to apply and hard to rub in. It's so thick that if I rub the stick over my entire face it feels like I'm applying way too much with a super heavy white cast, and if I dab here and there and try to spread it around, it's so thick it doesn't feel like it spreads into good coverage. The scent is fine. Update: I have found a specific use case for this - in extreme UV conditions like the equatorial tropics in midsummer, it's a good base layer under a more liquid mineral sunscreen, to add extra protection to the most exposed skin, like tops of shoulders, chest, nose and top of forehead. The thickness makes it protect better. It also softens a little and rubs in better in hot temps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
H
Verified Purchase
hilary
Los Angeles, US
★★★★★ 5
Needs to be warmed, but works great for quick face re-application
Style: SPF 50, Size: 1 count (Pack of 1)
I love mineral sunscreen, it really works the best. But I also do not love mineral sunscreen because it's hard to apply. I don't think it matters what you do, they're just always difficult to apply and always leaving the white. This one isn't much different. I'm a scuba diver and my face sunscreen is washed off quickly doing multiple dives. I also get a weird "mask sunburn" if I don't reapply... but since I'm a diver I can't bring myself to buy or wear sunscreen that's not reef safe into the ocean. I was unsure if this would work because it's pretty solid. I threw it in my bag and once the sun warmed it up a little, I was able to apply it fairly easily between dives. I don't think it works unless it's warmed a bit first, but I like it for this purpose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
T
Verified Purchase
Trevor Vicars
West Palm Beach, US
★★★★★ 5
Good sunscreen
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
It works and it's vegan what's more to say. I repurchase this often.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
N
Verified Purchase
nphoton
Lowell, US
★★★★★ 3
I Wanted to Like It
Style: SPF 50, Size: 1 count (Pack of 1)
I really wanted to like it because of the great reviews it gets with backpackers and generally with people that don't like "greasy hands syndrome" after applying sunscreen. But after using a stick I found that it's just not that good. The good: small, lightweight container. Not greasy. Good protection, I was in the sun all day hiking multiple days straight and only put on sunscreen twice per day and I didn't have any burning... and I burn easily. The bad: Value: the $12.53 sunscreen container only lasted about 8 days. And that was just my arms, neck, and half my face since I wore a shirt and long pants and a wide brim hat every day when hiking. I would expect this amount of sunscreen to last a lot longer than that on such a limited area. I'm not a big person either. Application, chafing: it's the opposite of greasy, almost chalky. You use the stick to apply to your skin in stripes, then you have to "blend it in" by rubbing with the backs of your hands so your palms don't get chalky. Since the stick is so dry this requires a fair amount of force and it chafes as you rub it around. When your skin a bit sandy it hurts. Application, crumbling: on a chilly but sunny morning, about 45 F, I applied sunscreen and small chunks of the stick crumbled off. I watched precious chunks of the already overpriced sunscreen drop to the ground. Residue: while it's not greasy, it's physical sunblock so it gives your skin the characteristic whitish sparkle. That's to be expected. But what I didn't foresee is it will rub off on anything your skin touches. My gear had white chalk-like marks (technically titania powder?) on my shirt collars, backpack straps, sunglasses, and a few other high-touch items. Overall I think it's a neat idea. I'm not overly disappointed with my purchase. But for $12.50 I expect sunscreen to be easier to apply and for the container to last longer than about 8 days. I can't burn $50/month in the summer months when a single container of chemical sunscreen will do the job. Pro tip: you can buy food-safe 3 oz TSA travel containers. Load one of those up with chemical sunscreen and you have something that beats this in every way except for the greasiness, which you can mitigate by picking a lower SPF sunscreen (the 30 SPF you wear is infinitely better than the 50 SPF you skip!).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2025
D
Verified Purchase
D. Collins
Draper, US
★★★★★ 5
sunscreen does its job
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
Works well. Took a little more effort to rub into skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

recommand products