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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
In general it is best to use the Tone only test with the Tone once per day
850nm Near Infrared Light
DO NOT use the mask if you are pregnant
or not following the manual directions and precautions for use
You can take it with you on the go - it is lightweight
The Tone Device: Black & Gold In general it is bestHow The Tone Works The Tone Device measures breath acetone, a ketone produced during fat metabolism. Breath acetone has been widely studied as a non invasive indicator of nutritional ketosis, allowing users to track metabolic changes without blood testing. Tone provides a convenient way to monitor your progress while following ketogenic or low carbohydrate nutrition strategies. Results from wellness devices may vary between individuals and should be
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