Sunday Riley Multivitamin Kit in Beauty: NA. Sunday Riley Multivitamin Kit in Beauty: NA. Sunday Riley has got your new go-to day and night regimen. Combining the power of Vitamin C and Retinol, the Multivitamin Kit will transform your complexion by instantly brightening the appearance of dark spots and discoloration while improving overall skin tone and texture.. Infused with 15% Vitamin C, C.E.O Serum rapidly brightens the appearance of the skin while tackling dark spots and discoloration at the source. Luna Sleeping Night Oil contains a powerful, yet gentle trans-retinol ester and moisturizing botanical oils to reduce the appearance of pores, fine lines, and sun damage whilst preventing flakiness and irritation. Includes: C.E.O. Rapid Flash Brightening Serum (0.27 fl oz) and Luna Sleeping Night Oil (0.17 fl oz). $40 retail value. On clean skin, apply C.E.O morning and night and Luna only at night. Due to presence of retinoids, Luna Sleeping Night Oil is not for use during pregnancy. SRIL-WU29. MULTIVITKIT07. Bold formulations, innovative technology, instant results - that's what Sunday Riley stands for. Every product reflects Sunday's belief that in order for results to count, they have to be visible and fast. Each Sunday Riley product is a powerful, targeted treatment designed to visibly improve the quality of your skin, including the signs of aging, dryness, oiliness, acne, dehydration, and the appearance of pores and discoloration. Each high-tech, carefully crafted formula delivers instant results with long term payoff, for truly game changing skincare.