Lac – Lac (Laccifer lacca) extract comes from a scale insect known from antiquity throughout India, Southeast Asia, Nepal and China. The deep red colorant is extracted from a hard resinous crude shellac before it can be successfully used as a dye. So the resin is known as shellac. It is used for lacquer and in addition as a protective covering for wood. Lac dye was used to color silk and dye leather and was mentioned as early as 250 AD. Lac extract is an affordable alternative to obtain pinks, purples and burgundy reds on protein fibers using an alum mordant. However, you will need a small amount of citric acid to use with lac.