Protein Ladders

About

GoldBio’s BLUEstain™ protein ladders are high-quality, prestained protein standards that cover a wide range of molecular weights. These ladders are ideal for monitoring SDS-PAGE separation, verifying Western transfer, and estimating protein size with ease. From low-range to broad-range markers, each ladder is pre-formulated in loading buffer and requires no dilution, heating, or additive. Just load and go. Whether you're tracking small peptides or high-molecular-weight complexes, you’ll find a ladder that’s precise, reproducible, and shipping-stable. Get dependable performance at a price that supports your lab’s productivity.