Every flavor we make, in one box. The best first order if you have never tried Night Shift Energy, and an easy pack to split with your unit.

Grapefruit, Blueberry, Citrus Tea, Raspberry Pomegranate, Ginger Blood Orange, and Kiwi Strawberry. 6-pack: 1 of each flavor. 12-pack: 2 of each.

The CircaFLOW™ blend pairs a solid 225mg of caffeine with Dynamine™ and TeaCrine® for a layered release of energy. Dynamine™ comes on first, caffeine carries the middle of your shift, and TeaCrine® extends the tail so the energy tapers instead of dropping off. Completing the blend: L-theanine, tyrosine, taurine, ginseng, inositol, adaptogenic mushrooms, huperzine A, and B vitamins. Zero sugar, 10 calories per can.

Made for nurses, physicians, medics, firefighters, police, and anyone working 12-hour nights, warehouse shifts, or long overnight drives.

Created by Dr. Thomas Jeider, an ER physician who has worked nights since 2010.

12 fl oz cans. 6-pack or 12-pack, $4.29 a can, shipping included. Subscribe and save. Order by 2 p.m. Eastern and it ships the same day (Mon to Fri).