SPECTRO TAR™ Antiseptic Shampoo Spectropharm Dermatology Chlorhexidine Gluconate--Coal Tar Psoriasis--Seborrhea Therapy   Availability And Storage: Each mL of foaming shampoo, stainless and virtually devoid of tar odor after rinsing, contains: chlorhexidine gluconate 1% w/v, and a special solution of coal tar 7.5% w/v in a soapless, biodegradable vehicle. Plastic bottles of 200 mL.