Coloplast Critic-Aid Thick Moisture Barrier Skin Paste 2-1/2Oz Tube, Zinc-oxide Base -1 Tube. Product is manufacturered and licensed by Coloplast . Product is categorized as a incontinent skin care . HCPCS: A4649 . Coloplast Critic-Aid Thick Moisture Barrier Skin Paste 2-1/2Oz Tube, Zinc-oxide Base. This paste provides temporary relief for irritation or burning in the perineal area caused by severe incontinence such as in chronic diarrhea, fistulas or drain tubes. Zinc oxide base provides occlusive protection. Helps relieve discomfort in the perianal area. Adheres to intact and eroded skin. Easy to apply and remove. CHG compatible. Suitable for neonatal use.