Invisible man and jekyll

This is during the last year of Satoshi is on the S.S. Raquaza, and he accidentally  makes the invisibility potion when he tries to get rid of Vampires' no reflections. Barry has intake the concoction and is now invisible. Right now Barry sees if eating something can be see, thankfully no, but Satoshi isn't pleased that he chosen an onion to do this with.