Green lipped mussell capsules are they safe to take?

Probably.: Well, probably. Green lipped mussels are safe to eat if harvested at the right time of year and quite tasty if not over-steamed. Not sure what the benefit would be of taking a capsule extract, though.

Green-lipped mussel: Green-lipped mussel (perna canaliculus) is native to the new zealand coast, and is purported to have anti-inflammatory effects. It's a staple in indigenous maori culture, and has been studied because coastal maoris have been observed to have a lower incidence of arthritis than european or inland maori people. A patented extract was safe and effective. http://tinyurl.com/lwmf6ko.