Does anyone know or has anyone had any experience with blueblood treatment ? This was used once used by nobels makink their lips and gums blue.

New to me, although the celts used a plant extract to die their skin blue before a battle. Is that what you are referring to ?

No I'm referring to an alternative therapy,infusion,elixir in use by some alt practitioners today.

Water with silver init the Brits used that turned their gums and tinted the skin blue.

Thanks for the info, boutier, but I still haven't found anything on your treatment. Google it and see what you come up with.