Do I still need to apply moisturizer after the serum?
It depends on how dry your skin is. Generally our serum will hydrate, moisturize and protect your skin. For those with extra dry skin, you might find our serum is not enough to give you the added moisturizing you need. We recommend that you first try a few nights without any additional cream and moisturizer. If you then still find your skin a little dry, then proceed to apply moisturizer and/or day/night cream.
How long can the serum last?
If used twice daily, it should last for 1 to 1.5 months.
Can I apply the serum after using the collagen mask?
No you don't need to apply any serum or moisturizer after using Taut Collagen Mask.