A serum is always applied after facial cleansing , but before your day or night cream. The serum acts as a catalyst and strengthens your other skin care, which makes all subsequent products more effective. There are many types of serum for different needs and skin types. When choosing a serum, you should start from what you want to treat. If you choose a moisture serum, it will help the skin bind moisture and plump the skin, while a vitamin C serum will strengthen the skin's collagen, even out the skin tone and help protect against harmful UV rays. If you want to work on minimizing lines, wrinkles and pigmentation, you should use a retinol serum instead. We have serums for all different needs and skin types - find the serum for you in the range below!