Mini Brow and Lash Boost Serum There is now no excuse for great brows and lashes with our mini brow boost. Glass Dropper Bottle 3ml For use on Brow lamination and Lash lifting Vegan | Cruelty Free | Natural Mini Version of London Brow Lamination Set and Go. Full Size Options Available This mini serum is the small sample version of London Brow Set and Go. Each bottle comes with a double ended brush for application.