Over time, the skin naturally loses collagen and grows thinners. The collagen stimulator stick might help your under-eye bags. It increases blood flow to the skin, helping your blood vessels tighten. The vasoconstriction or tightening decreases puffiness and darkening of the skin. This stick is more than just a cosmetic product that hides signs of aging and dark circles treatment. It is a breakthrough technology that reverses your skin’s aging process from deep within with clinically-proven techniques.