Is There Any Benefit to Using Glycolic Acid in the Morning and Retinol at Night? Or Should I Just Stick to One or the Other?

You can certainly use a retinol at night and glytone (glycolic acid) in the morning. Both exfoliate the skin, leading a brighter, more even, smoother complexion. Using both together will have added benefits. But both agents can cause mild irritation and peeling at first (even more if the products are used together). This should subside in time or by using a lower dose of the products. "This answer has been given without seeing the patient and cannot be held as true medical advice, only opinion. Seek an in-person evaluation with a trained medical professional for appropriate care and advice."