FYI, I had this on and off relationship with vitamin C serum. It’s not easy to find one that won’t cause breakouts, especially if it contains Ascorbic Acid. But, this comes in the right timing, when I was dealing with Cauter wounds (please scroll down for before-after pics). And I believe the older I get, the harder and slower it is for my skin to heal from any wounds. 

For those who avoid Ascorbic Acid, I do recommend you to try this as dark spots treatment. But if your skin can tolerate Ascorbic Acid, go ahead and use this as an anti-oxidant serum for morning routine. However, one very important thing that you have to remember when you use this serum, make sure you are using gentle facial cleanser and toner with no actives (read the ingredients carefully). It does contain vitamin C and Salicylic Acid already, so it’s best to keep your skin well hydrated pre-this serum. And if your skin can tolerate vitamin C, you can layer this with Hyaluronic Acid Serum.

Texture-wise: it is clear, watery with a subtle fresh scent (I believe it comes from White Birch & Peony extracts and Lavender oil from the ingredients’ list, so the scent is definitely not a synthetic fragrance). No worries, it won’t linger around, the scent only last while you’re applying. It glides evenly, it doesn’t clump under makeup and (seriously) works well with other Kiehl’s product:  Ultra Facial Oil-Free Gel Cream (try them both and you can thank me later). 

Unlike most vitamin C that will oxidize over time, this serum has a highly stable formula, even though the bottle is clear and exposed to light easily. It didn’t sting or give any warm sensation when applied, and it’s lightweight. This is the type of serum that won’t disappear on skin, you’ll feel it’s there, but it’s not oily nor heavily sticky. If you see my bottle is a limited edition this year, from “Made By Radio”. The only con is it doesn’t have stopper, so use it carefully. I believe because as a brand, Kiehl’s does have a mission to minimize plastic waste.

Please note that you won’t see immediate results, you have to be patient when using it, especially if the dark spots were there for the longest time already, or if you have mature skin. Give it time, using it twice a day as recommended, pair it with hydrating products, and you’ll see the difference.