Brand from South Korea: Goodal. Benefits:A powerful sheet mask infused with vitamin C from Jeju green tangerine, designed to diminish the appearance of dark spots.The Vitamin Serum Mask offers intensive blemish care for flawless, clear skin.Naturally derived tangerine extract and highly concentrated vitamin C help fade existing and newly formed blemishes and dark spots, restoring bright, clear skin.The mild formula and hypoallergenic mask sheet make it suitable for daily use.How to use:1. After facial cleansing, adjust skin texture with toner.2. Take out the sheet mask and place it on your face, avoiding eye and lip areas.3. Remove the sheet after 10-20 minutes and massage the remaining essence on your skin until fully absorbed.