Mutagen Mass Farming

The most reliable way to get Mutagen Mass is from Invasions and Orb Vallis Bounties.

Alternative, a Mutagen Mass Blueprint can be purchased from the Bio Lab of the Clan Dojo. The blueprints costs 15,000 credits. Crafting the Mutagen Mass from the blueprint then costs you another 15,000 credits, 10 Mutagen Samples, 1 Control Module, 500 Salvage, 250 Plastids and 12 hours.