"Wash your face gently with soothing Palmolive Soap, massaging the lather softly into the skin. Rinse thoroughly, first with warm water, then with cold.
"If your skin is inclined to be dry, apply a touch of good cold cream - that is all. Do this regularly, and particularly in the evening."
This is the "rule" to follow with Palmolive, taken from this 1927 ad.