Refeyn has introduced the MyMass™ mass photometer, a compact benchtop system designed to quickly evaluate biomolecular sample quality. The instrument measures purity, homogeneity, and oligomerization state in solution, helping researchers determine whether a sample is suitable for downstream structural and biophysical workflows. With an integrated display and computer for data analysis, and dedicated consumables, the system provides a streamlined way to assess samples before committing to resource intensive methods such as cryo EM, native mass spectrometry, bio-layer interferometry, and surface plasmon resonance.