Why Does Botox Take 5 Days to Work. It takes 5 days for botox work because the botox need to reach the cellular level of the muscle to be able to block the neurotransmitters in the nerve. This is what causes the muscle to paralyse. How Long Does Botox Last? The results of botox injections will typically last for six months to a year. 2 Botox Effects can be seen 3 to 5 days after treatment: Botulinum Type A. 3 You should notice the Botox starting to work in 2-3 days and becoming more apparent over the next few days or weeks. By four to six weeks post-treatment, most people see a noticeable decrease in wrinkle percent and thickness. Botox in Masseter area, 12 months. What does masseter Botox do? Injections of Botox into the masseter muscle will work to slim and contour the jawline. Botox is a neurotoxin, consisting of botulinum toxin type A, which relaxes the masseter muscles and can occur from hypertrophy or overuse. Botox works on dynamic wrinkles - meaning wrinkles caused when muscles contract. If your "11s" are severe enough that they are also there at rest, then you may have dermal atrophy requiring treatment with a dermal filler such as Juvederm. For static wrinkles - wrinkles at rest - Botox will not be effective during the first few rounds of treatment. It's not a permanent procedure, and usually lasts up to four months. But it can take a while to see the effects, as one doctor demonstrated on his social media pages, with his post amassing more With traditional Botox treatments, doctors inject Botox into the muscle layer. But mesobotox isn’t injected into the muscle. Rather, it’s injected into a deeper level of the skin, or dermis But in order for the drug to work properly, the timing needs to be right. According to Dr. Dadvand, "Botox typically lasts three months. This can vary by a few weeks from person to person. It can take up to seven days to fully work, but most people begin to notice the effects after two to three days." The best results typically show up in about a week. Sometimes it may take up to two weeks for the full effect of Botox to show, but this is rare. You can see some benefits such as decreased wrinkles after the first day or so, but the full result usually takes about a week. How long does it take for Botox to work? You won’t see any changes straight away. It takes about 2 to 3 days for Botox to start working, and two to three weeks to take full effect. The results will last about 3 to 4 months. Related: What is muscle scraping? Benefits + how to do it at home. Can you exercise after Botox? For jawline reduction and facial slimming, Botox patients may need to wait up to 4 weeks to see the full effects of the injections. On the other hand, if you received Botox for TMJ, you may notice mild improvements in symptoms in about 1 to 2 days after the procedure and complete relief after 2 weeks. 1EluhO.