Neurotoxins are purified proteins that have been used for years to treat dynamic wrinkles that form from excessive small muscle contraction. These proteins have been used to smooth and relax frown lines, crow’s feet, forehead wrinkles, upper lip wrinkles, neckbands, and “gummy smiles.”
These toxins are highly purified and dilute, and have proven to be extremely safe to use. The toxin is injected directly into the desired area and takes effect by decreasing the contraction of the muscle, ultimately softening and in some instances eliminating the line. Relaxation is gradual, usually starting after 48 hours with Dysport and 72 hours with Botox, progressing over 2 weeks. The treatment lasts on average for three and a half to four months.

GlamDerm - Gramercy Laser and Medical Dermatology