Layers of LVL lash lift jelly are painted on, each applied over another drying layer. As these layers dry, they seal naturally to your lashes, and lock out the elements that can damage them. They lock out sweat and water, too. You can swim with your thick lashes, without a care in the world. You can stick to your routines at the gym or cry at the movies without worrying about mascara flaking or smearing. Your lashes go where you go, and the thick keratin jelly seals itself off from what would otherwise break your mascara down. It locks elements into your lashes, too, including moisturizers that make your natural lashes healthier.