Question: Why are Vouray Skincare Users seeing a dramatic improvement in their  skin?
Answer: Several Vouray products contain effective  levels of Niacinamide (Serum K1, Night Repair Cream, Day Defense  Cream)
_____________________________________________________________________
Skin care manufacturers are now discovering that  Niacinamide treats acne, hyperpigmentation and redness.  
This derivative of Niacin, also known as vitamin B3, has  been found to “improve skin  tone and texture, reduce many signs of skin aging, and diminish  acne”, according to researchers. 
It also strengthens the stratum corneum, or outermost  layer of skin, and increases the rate of skin surface renewal to help reverse  the appearance of past damage such as discoloration or the look of enlarged  pores. 
Benefits are also said to include restoring and  increasing skin's elasticity and hydration from aging and sun damage.  
A study organized by Proctor & Gamble found that  not only is niacinamide well-tolerated by all skin types, but also reduces the  appearance of hyperpigmentation, redness, yellowing, and blotchy spots on the  face. 
A group of 50 women between the ages of 40 and 60  participated in a double-blind, placebo-controlled study with randomized testing  over a 12-week period.