What is a good cleanser to use at night with differin or a retinol. i use creave acne foaming cream cleanser with benzoyl peroxide in the morning?

Before you apply differin or retinol at bedtime just washing your face with warm water. You can use benzoyl peroxide acne foam in the morning.

Dove or Ivory liquid soap, or anything similar, works just fine -- you don't need expensive fancy cleansers. But let your face dry for half an hour before applying differin or retinol to avoid excessive drying and irritation.