Tartrazine or tartrazine is an artificial coloring widely used in the food industry, and can be used in soaps and cosmetics.    

Tartrazine yellow

INCI: CI 19140

CAS N ° : 1934-21-0
EINECS N ° : 217-699-5

Cosmetic dye soluble in water.    Color is one of the most important attributes in cosmetics and soaps, we only use those with a cosmetic quality, to avoid skin irritation, our cosmetic pigments and dyes have been subject to strict quality controls with order to be adapted to the legislation that regulates them.    Within the wide variety that we offer manufacturers have chosen only those who have an excellent tinting strength, great light reaction and a highly stable behavior in alkaline media.  In general we can say that our colors or migrate or discolor.  The offer powder, so they can be prepared very easily, mix some dye with a little oil or water (as appropriate) to make a thin paste and add more oil or water, mix and ready. Then add in the trace to the desired color.  For the preparation of cosmetics go añadiedo drops until desired color is achieved.  Our much powder dyes rife with 10 grams is possible to prepare 50 ml of the dye.