I got a glabellar nerve block at a BL Plastic Surgery clinic. I've had it twice since last year, but the cost-effectiveness doesn't seem that dramatic... I recommend maintaining it with botox for those who still respond well to botox... Glabellar nerve block is used as a last resort, and the cost of a glabellar nerve block is around 100, but they recommend something like a collagen injection, and if you add that, you can quickly go up to 130.