I have lost 58 kg's since using the herbex slimming drops and boosters since 2012. Can I continue to use these products safely - or should I stop?

It would be unwise to continue since you have already lost a lot of weight.

Their website says:

How long can I use HERBEX SLIMMERS products for?

The great news is that all HERBEX SLIMMERS products are completely non-addictive and have no side effects, as they are scientifically formulated and completely natural to not become toxic after long term use.

The key quote is "Natural" That gets them off the hook for FDA regulations and any needed approval unless they are actually proven to be dangerous later. As has been the case with a number of "Natural" supplements in recent years. At least in the USA.

The fact is they can make these claims... they aren't even required to prove them valid or true unless enough people complain. And even then its only going to apply to one country and not the others. Meaning on the internet they can claim they will let you crap turds of solid gold. And there is no authority out there that can make them stop.

If it's on the internet it has to be true, right?

:)

Yeah, just like Global Warming, Alien Abductions, Bigfoot, Nancy Pelosi being a pod person that's about ready to pop out of her cocoon... actually that last one is true. ;)