Protein ladders and MW markers for SDS-PAGE

New protein ladder choices!

By Douglas Hayworth

Get exceptional quality and convenience with our protein ladders and molecular weight markers for SDS-PAGE. Our protein MW markers provide superior performance for estimating protein sizes, monitoring progress of electrophoresis runs or checking protein transfer efficiency.

Choose from a variety of unstained, blue- and multicolor- prestained, and fluorescent protein ladders in broad-range, high-range and low-range mixtures.


  • Cost effective – high quality stained and unstained ladders without the high price
  • Performance – sharp protein band resolution and consistent migration patterns
  • Convenient – ready-to-load marker solutions; no heating required

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Protein Ladders (Molecular Weight Markers)

Protein Ladders (Molecular Weight Markers)