"At first glance ... and not in great lighting I thought it was a dead ringer for Sangre. So I made test beads to compare them. Both are made with red cores, encased in Effetre 006 and decorated with dots. Like Sangre, Hemoglobin went clear with heat and easily struck to a beautiful rich red. And as the red was small it kept it's transparency! It melted well with no issues in a moderate heat. I also made a plain slightly larger bead with Hemoglobin, and while not transparent it did not go as opaque as Sangre did. It's hard to capture in a picture, but it almost has a transparent top layer which made it shine."