One Thing Niacinamide 10%, 5.07 fl oz (150 ml)

One Thing Niacinamide 10% is a simple yet effective toner that delivers on its promise of brighter, smoother skin. It's fragrance-free and gentle, making it suitable for most skin types. The generous size and affordable price make it a great value. Some users may experience a slight flushing sensation, but it subsides quickly.

I cannot recommend using this along with the vitamin C serum enough. It's great value due to the large size for the cost. My skin never had too much trouble with the occasional blemish, but I would always break out around the chin/jaw area whenever I hit the gym consistently. With these two items, I've literally never had a blemish. I'm basically sold for life. It's inexpensive too! I have ordered my second one.