Tretinoin with Co-Q 10 is one of our Custom Script, skincare products. This cream helps to increase production of collagen, stimulates cell renewal and penetrates the ski. It contains Vitamin E. Tretinoin with Co-Q 10 will be available for patients to order a refill. New patients will need schedule a consult with our staff t to discuss the product and to assess which % or dosage of ingredients would be best. Free shipping.