Compose your own stack.
10+ vials of an item unlocks bulk pricing · every order ships free.
Pick any combination of compounds at any size and quantity. Name it, save it, reorder it next month with one click.
How it stacks
2 vials → the cheaper is 25% off · 3 → the cheapest is half price.
10+ vials of an item → bulk pricing applies automatically.
Free domestic standard shipping on every order.
Stack & Save
The more vials on one order, the deeper the discount. Applied automatically at checkout — nothing to enter.
1 vial
Full price
2 vials
25% off the cheaper vial
3+ vials
50% off your cheapest vial, then 25% off the next-cheapest
Counts single research vials. Bacteriostatic water and supplies do not count, and lines already on bulk pricing keep their bulk rate instead — you always get whichever saves more.