iS Clinical 活性精華

After just two weeks, the dark spots on my cheeks have noticeably faded and my skin feels smooth without any irritation. It's lightweight enough to layer under moisturizer, which is exactly what I needed.

I've been using this serum for about three weeks and my acne scars are noticeably lighter—the glycolic acid really does the job without irritating my skin. It layers nicely under moisturizer and doesn't feel sticky at all.

Bought this to fade some sun spots on my forehead, and after four weeks they're noticeably lighter. The glycolic acid gives a nice tingle without being harsh — my other serums didn't work this fast.