T3.reverse [Mass/Vol]
Reverse T3 is the brake pedal of your thyroid system. Instead of activating your metabolism like Free T3, rT3 blocks it. Your body makes more reverse T3 when you're stressed, inflamed, sick, or under-eating — it's a survival move that slows everything down. High rT3 with normal TSH and Free T4 often means you’re converting thyroid hormone inefficiently, leading to fatigue, brain fog, or weight plateaus even when other labs look "fine."solve real problems with clean design and honest materials.
$43.75 USD