...three to four months, however, I've found in my practice, that with consistent treatment, effects will last longer because the muscle will be trained over time to be less active. If you come back in four months, the next treatment will probably last longer, and this increases each time. It's like muscle atrophy. If you don't use any muscle for a long time, it gets weaker and weaker. The converse is also true. If you have have Botox, then wait a long time, the muscle has had an opportunity to regain its strength, and the process of weakening that muscle starts over again.
