I wouldnt use the drinking bowl supplements, A quick story,
I got 2 hatchlings last season, 1 is doing fine, the other one is still only 2 inches long.
I thought it was stress from the other and tried all sorts of things
He will only eat woodies if they drop at his feet and 4 only.
He was battling along until I noticed he had started to shed so I misted him.
This is when I realized the little guy had not been drinking from his water bowl whatsoever (full of clean water constantly for him).
He drank and drank and drank and I felt the cruelest mongrel and so sorry for the little guy thinking he must have been so thirsty.
This little beardie is as much work as my entire collection, but he is on the mend now and I spoil him.
I have learnt from my mistake to never assume an animal is drinking because it has a water bowl and I wouldnt recommend to anyone to try and supply vitamin supplements to an animal this way.
I think we all make mistakes and have learning experiences, please don't judge me for what I have done, but I would rather relay my error to avoid anyone else making the same mistake.