I got 75 units Botox. I see immediate results (almost overnight). Will the Botox last as long?

Botox longevity varies from person to person, based on injection technique, and based upon dosage.  Often first time patients experience a quicker onsets from botox.  Time can vary from injection to injection.  The longevity of the results has nothing to do with onset.  The best time to touch-up botox is when it begins to fade.  It is better to stop lines before they start creasing again rather than waiting for a specific timeline.

I personally note the immobilizing effect in my forehead the day following a Botox treatment, and it may show most potency over the first 72 hours. The complete effect is typically noted around a week following your treatment. Enjoy.Dr Joseph

The time to start seeing results varies by the individual.  For most people the initial onset after a first time ever treatment is 3-4 days.  Dysport tends to kick in a bit sooner, so for those who need a faster response, we will use Dysport.  75 units is a lot for an entire forehead!  If the amount you were given was truly 75 units, you will probably be good to go for up to 4 months or longer, particularly for the forehead and muscles between the brows.  Crows feet recover a bit sooner.  

Your results will last the same amount of time, it does not matter how fast it kicks in.  Our patients typically require the same amount of units, but it does depend on the area/areas being treated.  

Thank you for your Q.Just because Botox worked very quickly does not mean that the effect(s) will dissipate quickly.BestDr. Karamanoukian#RealSelf100

Hello and thank you for your results and questions. Botox will typically begin to "kick in" after 4-7 days, but some may see results earlier. Botox typically lasts 3-4 months despite how soon it "kicks in" and after that it begins to slowly wear off. Best of luck.Benjamin J. Cousins MDBoard Certified Plastic Surgeon

Botox typically lasts between 3.5-4 months, and sometimes longer if you've been doing it consistently for years. In some people, there is some immediate improvement, although in most people it takes 3-5 days to start working and full effect is in 7-10 days. Some people need fewer units and others more, depending on the size & strength of the muscles, and how many areas are being treated. No one can predict how long it will last in you, and the immediate effect doesn't say anything one way or the other.

I some people it will kick in faster than others. It has no relationship to how long it will last. After about 7 days, the full result will be appreciated in most people. You are lucky that it kicks in sooner. It takes about 7 days for mine to work!

Hello Rinea37,75 units of Botox is certainly on the high side for any treatment for cosmetic purposes.  It is not outside of the realm of what could be used when you combine several areas, but that is on the high side.  It would be quite rate to notice a benefit this quickly.  It's possible what you are experiencing is only from the small trauma to the muscle from the injection of Botox.  Regardless of when the results kick in, it should last for about 3 months.  Some people are a little less and sometimes a little more.  The amount you get at your next visit is up to you.  I usually start my patients at 20 units for the glabella (vertical 1s), 10 for the forehead, and 10 for each crow's feet.  But there is a range of up to 50 units for the glabella, 20 for the forehead, and 20 for each crow's feet.  Depending on where you were treated, you may consider fewer units at your next visit and see if you get the result you want.  If you don't, then you can have more injected until you get the result.  At that point you  know how many you would need in the future.  I hope this helps and good luck.  

The fact that Botox kicked in very fast is not at all an indication that it will not last long.  For the great majority of people it lasts for 3-4 months.  For some longer, for some it goes away faster.  The key to increasing intervals between your injections is maintenance.  Try to get re-injected on a fairly regular basis (3-4months apart) in the beginning and you will see that the more you use it the less frequently you will need it.  You simply get used to not using your muscles of facial expression as much as you normally do and your skin will stay smoother for longer periods of time, even after the product has completely worn out.