Malibu Lashes Smart Bond adhesive is the fastest drying adhesive on the market taking only 0.5 seconds for a long-lasting, minimal fume bond for both classic and volume lashes.  Smart Bond adhesive has a medium viscosity, great for both beginner and veteran lash technicians. The flexible nature of Smart Bond adhesive makes it ideal for creating volume fans. Retention time is 8 weeks. Formaldehyde-free