مصل فيتامين C 5.5% Jumiso All Day Vitamin Pure C 5.5 Glow Serum

After cleansing and applying toner, use the serum. Follow with a moisturizer and sunscreen. Before first use, perform a patch test to check for sensitivity and gradually introduce the product into your skincare routine. When using a vitamin C serum with an acidic form, some irritation may occur until your skin adjusts. It's recommended to use the product within 3 months after opening to prevent the vitamin C from oxidizing.