After using the product for about 2 years, I developed a rash on both cheeks. I tried several over the counter medications to no avail. Once I stopped using the product, did the rash immediately disappear. I had three months of products but customer service would only refund one month. I went through the return process, step by step and sent it in to Saranghae (Means I Love you) but after 51 days after they received the product (save your tracking numbers) I sill had yet to receive my refund. Another call to customer service and a big runaround, it was finally processed. Not only did the product cause a rosacea type problem on my face, I had to work to get a refund and only on 30 days of product. I dumped 60 days worth into the trash. Think long and hard before you purchase from this company.