I put some of the biggest A-lister beauty trends to the test, including a so-called Vampire facial - you'll never guess what ...

The mixture was centrifuged at 8000 ×g for 10 min (4 °C). The supernatant was collected into a centrifuge tube of 10 mL, and the residue was extracted again with ultrapure water of 1 mL. The second ...

250 mL Vacuum filtration flask 0.22 μm (LPS CellPro, Cat# V25022). 50 mL Sterile-HV sterile centrifuge tube PVDF membrane, 0.45 μm, top filter unit (Milipore, Cat# SE1M003M00). Eppendorf tubes 1.5 mL ...