(4). Vitamin B3 serum(per bottle for two weeks 10ML)

Vitamin B3 serum: Aqua, Plant hyaluronice acid, Glycerin, vitamin B3, Urea

Apply Vitamin B3 serum for moisturising. Using the tube from the container to suck in about 1 inch long volume of B3 serum and drop it onto your palm and warmed by frictionless of your hand. Apply onto your face generally and then spank until fully absorbed and feel no sticky. 

Caution:  

A. just can apply vitamin C at night as it will darker the freckles under the sunlight. You may only apply vitamin B3 serum as moisturiser at daytime. 

B. Don't apply any serum onto your eye area as the eye cream is enough nutrition.