Vitamin C delivers a healthy dose of antioxidants to the skin, making it an ideal anti-aging nutrient. And since the Measurable Difference Vitamin C Serum serves up a highly concentrated level, it's safe to say you've got some wrinkle-free days ahead of you. As well, added moisturizing ingredients lock in hydration and stimulate collagen production. 
Who's it for: All skin types, especially dry and aging 
Recommended use: Daily, can be worn underneath moisturizer or makeup 
Directions: 
Cleanse your face and apply toner as you normally do 
Squeeze several drops of the serum onto your fingers or hand
Rub the serum to warm it up and pat gently all over your face 
Finish with your favorite moisturizer 
Size: 30ml / 1oz 
Beneficial ingredients: Vitamin C