This serum contains 13% Vitamin C to improve skin condition and achieve an even skin tone. - Brand: COSRX - Product Name: The Vitamin C 13 - Ingredients: Super Vitamin E + Hyaluronic Acid - Volume: 20 mL - Effects: Improve skin condition, Even skin tone Purchased in September 2025. This product arrived from Korea on September 7th. I bought 3 and am currently having a flash sale on one! If you'd like to purchase at a great price, please take advantage of it. The flash sale is only once! There will be no sales after that, so please follow me and enjoy! Price is firm for single items. Discounts are available only for bulk purchases. The product will be shipped without the box. Shipping with the box will require an additional fee. Thank you for your understanding. Thank you for viewing.