This is an okay serum.. Easy to apply however it feels oily at the same time.. the citrus scent is a bit different from what i used to.
I used this after toner step & before applying sunscreen/foundation..

It makes the foundation applies smoothly on the face.. But i don't like the oily feel on my face.. It does make your face dewy tho..
As for brightening, it doesn't do much on my skin.

But for the price, it's okay

Used it day and night after cleansing, only on dark spots on my face. Texture is slightly sticky with a faint citrus tingle when applied on my face, but leaves skin feeling hydrated. On my first bottle which lasted almost 2 months, but as it's dispensed via a dropper, it seems as if the product finishes faster than my previously used Melano CC serum. Some lighter "post acne" marks have faded, but there are still some dark spots that take a longer time. At the price range, it's an affordable item to try adding a light Vitamin C serum into your skincare routine. Be sure to only use one active at a time, and to wear sunscreen after using this product if going outdoors during daytime.