Can I alternate the oil cleansers with the Treatment Cleanser?

Absolutely. As your skin fluctuates with seasons, geography, hormones, etc. it can be really beneficial to have both on hand. Use the oil cleanser for a thorough, nourishing cleanse; when feeling dry, depleted, or to remove makeup. Alternate with the Treatment Cleanser when you are needing gentle exfoliation and/or experiencing breakouts. You can also layer them for a double cleanse, oil first, then follow with the Treatment Cleanser.