holland and barrats used to have a liquid one (between 10 and 15 quid depending on the offer) for a months worth, it was orange flavoured – i’ve tried many of them i felt that this had the most benefit – the cheap holland and barrett ones (own brand) in pill form did me no benefit thou.
my father in law had a dodgy shoulder and used to play a lot of golf and had to near enough stop – he had a lot of treaments on it, then tried glucosowotsit on my recomendation, and it’s done him the world of good – i didn’t think it’d work to be honest.
My advice – get good ones – make sure the dose is correct (i’ve heard there’s an issue with ‘sulphates’ or something and try it for at least a couple of months – i’ve noticed that it does have some postive effects in that if you go too much on your knees and stuff em up then they feel right again sooner on the juice.