Serums penetrate the skin’s surface up to 10 layers deep, addressing damage and specific skin concerns, whereas moisturisers work on the surface layer. Serums such as niacinamide offer a host of benefits, ranging from improved texture to diminished dark spots and cleared-up acne, but as…
![Cosrx Niacinamide Serum](https://fabmumng.com/wp-content/uploads/2024/05/Cosrx-Niacinamide-Serum-1.jpg)