Ludigol F is a mild oxidizing agent that helps to prevent dyes from decomposing during steam setting. It is a very important ingredient when working with deep shades, and it is essential when working on silk.
2 oz/56.7 g (CHM1011) pictured
1 lb/.45 kg (CHM2011)
5 lb/2.3kg (CHM3011)
Add 1 tsp of Ludigol per quart of dye solution and mix.