a pure source of melatonin

[Guest guest]

Hi All. I am new to this forum, but have been reading all the threads for a

while. Can

anyone recommend a pure (as in no flavours, fillers etc,) uk available source of

melatonin

for my 3 yrs 11 month son. I need to be able to disguise it in a drink so can't

use tablets. I

have been using a liquid that has a vanilla flavour which I am not sure he can

tolerate.

Many thanks, Sophie