[Set Contents] ・RMK W Treatment Oil (50mL/full size) ・RMK W Treatment Lotion (160mL/full size) ・RMK W Treatment Oil-in Cream (pouch sample 0.5g x 2 uses) ・RMK Serum Cleansing Oil (40mL/mini size) This set includes the No. 1 best-selling* oil and the lotion from the same series. *2025 RMK skincare category shipment results This set is also recommended for those who want to try oil-based beauty products. It comes with a cream (pouch sample) from the same series and a new cleansing oil (mini size) released in March. RMK W Treatment Oil A pre-care treatment oil that combines an oil layer that softens the skin and a moisturizing layer that replenishes the stratum corneum. By using it at the beginning of your skincare routine, it prepares the skin so that subsequent moisturizing lotions and other products can easily penetrate the stratum corneum. RMK W Treatment Lotion: Provides a deeply moisturizing feel, as if you're wrapped in a veil of water, and a captivating* hydrating sensation that circulates moisture throughout your skin. *Reaches the stratum corneum, leading to plump, soft, and radiant skin free from dryness and roughness. RMK W Treatment Oil-in Cream: Formulated with a balanced blend of "moisturizing ingredients" and "emollient ingredients." Its high moisturizing power protects the skin, leading to moisturized, firm, radiant, and soft skin. RMK Serum Cleansing Oil: A cleansing oil that uses RMK's unique formula to combine powerful cleansing that removes makeup in an instant with just a gentle application, and a moisturizing feeling like you've just finished skincare. No emulsification process with a small amount of water is required, and it removes makeup quickly while reducing the burden on the skin.