How Long Do The Effects Of Botox Last?



Botox is one of the most popular non-invasive procedures for its effectiveness in reducing expression wrinkles. Its aesthetic use is indicated for the muscles of the upper third of the face (forehead, between the eyebrows and crow’s feet). But how long do the effects of Botox last? Complete paralysis of these muscles is not sought, but a selective relaxation (neuromodulation) of certain areas. The results are usually very satisfactory for patients, as they achieve a more relaxed and youthful face without losing the natural expression of the face.

Botulinum Toxin. How Long Does Its Effect Last?

The use of botulinum toxin in aesthetic medicine in millions of patients has increased medical knowledge about their behavior. Therefore, more precise information can be given than can be expected in each particular case. There are hundreds of studies and thousands of published articles regarding this product. One of the most studied elements is the chronological aspect of its action.

Many people wonder how long the effects of Botox last. Botulinum toxin is a protein that stands between the nerve endings and the muscle, preventing its contraction. This lock is selective and reversible, making your application very secure. The effect begins to be appreciable at 4 or 5 days and reaches its maximum at 12-15 days after treatment, so there is no sudden change.

Subsequently, there is a period of about six to eight weeks in which the results are maintained. From now on, most patients notice a slow but progressive recovery of contractility in the treated areas.

Does This Mean That The Effect Of Botox Has Been Completely Lost?

No. It means that the transmission of the nerve to the muscle is regenerating. This process finishes completing at 4-6 months.


The intervals between treatments should not be less than three months. It has been demonstrated that the application of the Botox with a lower interval than the recommended one increases the possibility that the body forms antibodies against this substance, reducing or canceling its effect in subsequent uses.

Clinical practice, supported by different studies, shows that the use of Botox for one or more years prolongs the duration of the results. Initially, its use may be indicated every 4 or 5 months, but as usual and after the second year, it is applied every six months.

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