Are all burt's bees products biodegradable?

I'm going camping and will only be able to bathe in a lake. I'm wondering if burt's bees shampoos and conditoners are really biodegradable, i know they're mostly natural. Specifically the travel shower kitAre all burt's bees products biodegradable?
I looked on their website and not all are 100% biodegradable. It looks like their all in one shampoo is the only one the recommend for outdoor use.

healthy hair