Brand from Japan: TUNEMAKERS. A serum that thoroughly cares for aging signs around the eyes by mixing the stock solution.The developers who are most familiar with the characteristics of the undiluted solutions carefully selected 5 types of undiluted solutions for eye troubles (lack of firmness, dullness, dryness) and formulated them with a unique eye care ratio.Permeates to the stratum corneum and plumps up the eyes.Care for dryness at the same time.Eye care ratio: 5 Retinol : 3 Vitamin C : 3 Vitamin E : 2 Ceramide : 1 Hyaluronic AcidFormulated with penetrating and stable retinol that encapsulates unstable retinol for easy penetration.How to use:Take an appropriate amount (one eye: 1-2 drops) and gently apply it to the eyes with your middle and ring fingers.For the lower eyelid, massage from the outer corner to the inner corner of the eye, and for the upper eyelid, massage from the inner corner to the outer corner of the eye.One bottle can be used for about 75 days. (2 drops at a time, when