i ve been taking Lugols from J crows for over a year and it helped me.
i dont think they mix in anything weird.
J crows Lugols Solution is just distilled water and some mg.g of Iodine and iodide.
Iodine and Iodide if bought in bulk is SOOOOOOOOOO cheap.
Why would they even think about diluting it in any way.
Only thing i could imagine they put in less Iodide or Iodine as written on the bottle. But still... if ppl dont have success with J crows Lugols it will spread around the internet and ppl will just go for another brand.