Brand from South Korea: SOME BY MI. This bundle set comes with:Retinol Intense Reactivating Serum 30ml x 2 pcsBenefits:This serum helps reduce signs of aging with its mild formula for sensitive skin.Contains Retinol, Retinal and Bakuchiol to help boost skin elasticity with low irritation.Utilize patented technology of Elastic-Liposome to deliver active ingredients into the deep skin layer.Gives a non-sticky and moisturizing finish.Completed skin irritation testing and passed the vegan test.How to use:1. After washing the face, apply a moderate amount of the serum and gently spread it on the face.2. In the first 2 weeks, use a small amount of it once a day, and then increase the amount and frequency of using it after skin adaption.