There are thousands of different proteins across several different classes in biology, each with a distinct purpose. In your research environment you need tools that help you identify and classify your proteins with confidence. GoldBio’s BLUEstainTM ready-to-use protein ladders offer high band resolution across a wide range of molecular weights, and our electrophoresis gels and dyes like ponceau S help you separate and visualize your protein sample. GoldBio’s commitment to quality and affordability assures you the best products for the best price.