How Long Does Botox Take to Work?

Botox Results Timeline: When You’ll See Changes

One of the first questions patients ask after treatment is: “How long until I see results from Botox?” Unlike dermal fillers, which give instant volume, Botox takes a little time to work. The treatment works by blocking nerve signals to specific muscles, gradually relaxing them so lines soften over days rather than hours.

Botox anti-wrinkle injections are a very popular way to soften lines and wrinkles with minimal downtime, but the results don’t appear instantly. Most patients notice results within 3–5 days, with full results appearing after 10–14 days. This is the normal timeline for Botox, whether you’re treating forehead lines, crow’s feet, or frown lines.

If you’re just looking for a quick overview of when you’ll first notice changes, my article “When does Botox kick in?” gives a simple, day-by-day explanation.

While Botox is taking effect over the first few days, good aftercare and sensible activity choices make a difference. If you’re unsure about workouts, my guide on when to return to exercise after Botox explains what’s safe and when.

At my cosmetic skin clinic in Wimbledon, patients from Raynes Park, Kingston, Surbiton, Richmond and across South West London often ask how long Botox takes to work and when they’ll actually see a difference. If you’ve just had Botox, don’t worry if you don’t see changes straight away — it’s working beneath the surface and will reveal itself gradually.

How Long Does Botox Take to Work on the Forehead?

Botox on the forehead usually starts to work within 3–4 days, with maximum results showing at around 10–14 days. Fine lines often smooth out quickly, while deeper creases may take a little longer to soften.

This is one of the most popular treatment areas, but it also requires careful balance. The forehead muscles are responsible for expression, so too much Botox can feel heavy or unnatural. With subtle, precise dosing, the result is a refreshed, natural look that keeps your expressions while reducing unwanted lines.

How Long Does Botox Take to Work Around the Eyes (Crow’s Feet)?

Crow’s feet typically soften within 4–7 days, with full results visible by 10–14 days. Because the skin around the eyes is thinner and more delicate, many people notice changes here slightly sooner compared to the forehead.

Patients often say this treatment makes them look less tired and more approachable, giving a brighter, refreshed appearance. When done correctly, the effect looks natural and expressive — you’ll still be able to smile, but with softer, smoother skin around the eyes.

Botox works at different speeds — forehead, eyes, and frown lines each show results on their own timeline.

How Long Does Botox Take to Work Between the Eyebrows (11 Lines)?

The frown lines between the eyebrows (often called “11 lines”) usually respond within 5–7 days. Some patients see an earlier softening, while others notice the biggest improvement closer to the 2-week mark.

Because the muscles here are strong and frequently used for frowning or concentrating, results can vary. For deeper lines, repeat treatments often give the best long-term smoothing effect, as the skin has time to recover and crease less deeply over time.

How Long Does Botox Take to Work on Other Areas?

Botox isn’t only for the forehead and eyes — it’s used in several other areas too, each with its own timeline:

• Smoker’s lines around the lips: Results usually appear in 5–10 days. Because the muscles here are small, the effect is often subtle but can make a big difference, especially when combined with complementary treatments like dermal fillers or skin boosters.
• Masseter (jaw slimming / teeth grinding): These are large, powerful muscles, so results take longer — often 2–4 weeks. Patients often notice their face looking slimmer and jaw tension easing, which can also reduce headaches from teeth grinding.
• Hyperhidrosis (excess sweating): Botox blocks signals to sweat glands. It takes 1–2 weeks to see the benefit in the underarms, palms, or feet, and the effect usually lasts 6 months or more.
• Migraines: Results begin around 10–14 days, with improvement often continuing over the first month. Many patients find both the frequency and severity of their headaches reduced.

Why Is My Botox Not Working After 10 Days?

It’s important to remember that Botox takes up to 14 days to reach full effect. At day 10, some patients may still be in the “developing phase.” Areas like the frown or jaw can take a little longer because the muscles are stronger.
If you feel your Botox hasn’t worked after 2 full weeks, it could be due to:

• Muscle strength – some people need slightly higher doses for optimal results.
• Metabolism – individuals process Botox at different speeds.
• Injection placement – precise technique is key for the most effective outcome.

At my aesthetic Wimbledon clinic, I always recommend a review appointment at 14 days. This gives us the chance to assess your results properly and, if needed, make small adjustments or top-ups to ensure your results look balanced, natural, and effective.

Can I Make Botox Work Faster?

No — there’s no safe way to speed up Botox results. The treatment needs time to bind to the nerve endings and relax the muscle, which is why results appear gradually.

The best thing you can do is follow Botox aftercare instructions carefully:

• Avoid strenuous exercise or heavy lifting for the first 24 hours.
• Avoid alcohol the day of the treatment.
• Skip hot saunas, steam rooms, or tanning beds.
• Stay upright for at least 4 hours after treatment.

Good hydration, a healthy lifestyle, and skincare that supports your skin barrier can also help your results look fresher and more radiant once they appear.

There’s no way to speed up Botox — patience and proper aftercare give the best results.

What Is the 4-Hour Rule for Botox?

The 4-hour rule means staying upright for at least four hours after Botox. This helps prevent the product from moving away from the injection site and ensures it works exactly where it was placed.

During this time, it’s also best to:

• Avoid rubbing or massaging the treated areas.
• Skip tight headwear, such as hats or headbands.
• Avoid applying heavy makeup over injection sites.

Following this simple guideline is one of the easiest ways to secure smooth, natural results.

If you are currently breastfeeding, you may wish to read my article on Botox and breastfeeding safety before scheduling treatment.

How Long Does Botox Last?

Most Botox results last around 3–4 months. Some patients enjoy effects for up to 6 months, while others may metabolise it more quickly. This variation depends on factors such as:

• Muscle strength – stronger muscles may break down Botox faster.
• Exercise level – very active people sometimes notice shorter durations.
• Stress and metabolism – lifestyle factors can influence how long results hold.

With regular maintenance treatments, Botox often lasts longer and results become more consistent over time. Many patients find a rhythm of booking every 3-4 months works best.

Botox typically lasts 3–4 months, with some patients enjoying results for up to 6 months.

Additional Questions People Ask

What Makes Botox Wear Off Faster?

High-intensity exercise, fast metabolism, and frequent use of the treated muscles can make Botox wear off sooner. Stress, smoking, and sun damage can also affect skin quality, making lines return more quickly.

Is 40 Units of Botox a Lot?

No, 40 units is a common dose for the forehead and frown lines combined. The “right” dose varies depending on your muscles, goals, and whether you prefer a softer or stronger look. A personalised consultation is always the safest way to plan dosage.

What’s the Best Age to Start Botox?

There is no single best age — it depends on your skin and goals. Many patients start in their late 20s or 30s for prevention, while others wait until their 40s or 50s to soften lines. For more detail, see our related post: Is 40 the Right Age to Start Botox?.

Final Thoughts on Botox Results Timeline

Botox is not instant, but it is reliable. Most patients begin to see results within 3–5 days, with the best effect at 10–14 days. Whether you’re treating the forehead, eyes, frown lines, or even medical conditions such as migraines or sweating, the timeline is reassuringly consistent.

📍 If you’re considering Botox in Wimbledon, Raynes Park, Kingston, Surbiton, Putney, or anywhere in South West London, I’d be happy to guide you through what to expect and create a treatment plan tailored to you.

During your free consultation, we’ll discuss your skin concerns, assess your facial structure, and decide together which treatment aligns best with your needs.

Book your free consultation here →
Or call me directly: 07702 389 636

Warm regards,

Dr Suresh Mohan