What it is: A set of two essential facial serums from Oak Essentials. Set includes:- Daily Vitamin C Serum (1 oz.): a lightweight, hydrating daytime serum that stimulates collagen and fades discoloration for a brighter, more even complexion- Nightly Retinol Serum (1 oz.): a potent yet gentle nighttime serum formulated to reduce signs of aging as it repairs a healthy, glowing tone $184 Value Paraben-free; phthalate-free; sulfate-free; synthetic fragrance-free; silicone-free