LipSense is a pharmaceutical-grade cosmetic product with pure pigments and natural botanicals. It is the best blend of science and nature. LipSense is gluten-free, vegan, kosher, non-GMO, contains no lead and no animal by-products. SeneGence uses the highest quality ingredients and is made in the USA.
LipSense is NOT a stain; it doesn't penetrate the skin and go into the blood stream. LipSense is a patented molecular bond, meaning it sticks to your skin and that is why you have to have clean and dry lips (so that the pigment can "stick" to it with the patented technology).
The Tingle
SD40 alcohol is the delivery system for LipSense. It is thinner than water. After you apply LipSense, the SD40 alcohol dissipates quickly, only leaving the color in place. It also keeps the product bacteria-free for the life of the tube.
If you experience any burning or tingling, it means your lips are dehydrated; the skin is damaged, leaving nerve endings exposed... So heal those lips!!!