ive almost completed a whole bottle of methylene blue and i am amazed at the results im seeing and feeling. brain fog is significantly less, energy and focus are super legit, mood feels more balanced, and i cant detect a single negative side-effect. im a homeschooling mom of 3 and this feels like an answer to a prayer. ill add i also workout hard 4-6 days a wk, take a whole food supplement, have good boundaries, and take cbd. i feel like blu was the missing factor to bring it all together. ill be ordering again.