Annyeong, Everyone~ and Happy Eid to my readers who are celebrating it! I am going to do a review on another Vitamin C treatment product. Spoiler: I don't use this anymore despite still having a lot of it left in the tube because it just sucked. I bought this on eBay from seller ryushindojapan earlier this year. It was my first time ordering something from Japan so I was looking forward to receive my first ever parcel from Japan haha. This product costs USD 13.23/20ml + free shipping at the seller's store. It took a month for it to arrive to Brunei. I bought this because I wanted to see whether if it will work as great as my favorite vitamin C treatment product which is the OST C20 Serum / Tiam Signature C-Source and also because I read positive reviews that this worked on lightening people's post acne marks. I don't have much details about this Japanese serum (lazy to research on it) but the product contains Vitamin C and E to lighten dark spots such a