From what i have read there are 3 levels of Biochem items:

Green which is the basic.

Blue which gives an extra effect (healing has a HoT, buffs persist through death, better etc)

Purple which is BoP (or requires biochem), reusable, but the same power as green.

So the blue ones that everyone can use are still the best.

Is it the same for Cybertech grenades? Are the purple reusable grenades the same power as green ones, while blue ones can be used by everyone and are the best?