Dr Todd Schlifstein on Instagram: "3 Signs of Bad Botox in the Forehead: When I say “bad botox”, I’m referring to poorly injected botulinum toxin. Obvious signs of poorly injected botulinum toxin. 1 Spock Brow - outer brow arches unnaturally high 2 Angry Bird - brows pulled too close together 3 Brow Drop - heavy, tired-looking eyes Botox injections to the forehead are one of the most common treatments in aesthetics, however they’re also among the most technically challenging. If not done correct