What it is: A set of pre-glued, these self-adhesive lash clusters that are perfect for beginnings, easy to apply and mess-free.​ Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also gluten-free and cruelty-free.What Else You Need to Know: Handmade with lightweight and natural-looking fibers, these Self-Stick Lash Clusters are applied underneath your natural lashes for a seamless look. Use three clusters per eye for a full lash extension look or one to two clusters to create a half lash.