Quick Answer
- Typical duration: 3 to 4 months
- First effect: 3 to 5 days after treatment
- Full effect: Around 2 weeks
- First-time patients: Results often fade sooner
- Repeat treatments: Usually every 3 to 4 months
- Jaw treatment: Often lasts 4 to 6 months
How Long Do Anti-Wrinkle Injections Last?
Anti-wrinkle injections usually last 3 to 4 months. The botulinum toxin relaxes the treated muscle. Your nerves then grow new connections to the muscle, and movement returns gradually.
What Does the Timeline Look Like?
| Time After Treatment | What to Expect |
|---|---|
| Day 1 to 2 | No visible change. Small bumps at injection points settle within an hour. |
| Day 3 to 5 | Muscle movement starts to soften |
| Week 2 | Full effect. Review appointment for any adjustment. |
| Month 2 to 3 | Results hold steady |
| Month 3 to 4 | Movement returns gradually. Lines start to reappear. |
How Long Do Results Last by Area?
| Area | Typical Duration |
|---|---|
| Forehead lines | 3 to 4 months |
| Frown lines between the brows | 3 to 4 months |
| Crow’s feet | 3 to 4 months |
| Jaw muscle for clenching or slimming | 4 to 6 months |
| Underarm sweating | 6 months or longer |
What Affects How Long Results Last?
- Dose: Lower doses keep more movement and fade sooner
- Muscle strength: Strong muscles break through sooner
- Metabolism: Active people and fast metabolisms often see shorter results
- Treatment history: Regular treatment often extends duration over time
- Sun and smoking: Both age the skin and make lines return faster
How Often Should You Repeat Treatment?
Most people repeat treatment every 3 to 4 months. Doctors avoid top-ups sooner than 12 weeks apart. Short gaps raise the chance of your body forming antibodies to the toxin, which reduces the effect over time.
What Aftercare Helps Results?
- Stay upright for 4 hours after treatment
- Avoid rubbing or massaging the area for 24 hours
- Skip intense exercise, saunas and steam for 24 hours
- Avoid facials and face-down massage for 24 hours
Frequently Asked Questions
Why did my anti-wrinkle injections wear off after 2 months?
Strong muscles, a low dose or a fast metabolism shorten results. Your doctor adjusts the dose at your next treatment.
Do wrinkles get worse after anti-wrinkle injections wear off?
No. Lines return to their earlier state. Regular treatment often softens lines over time.
Do anti-wrinkle injections last longer with repeat treatment?
Often yes. Muscles used less over time weaken, so results often last longer.
Related Guides
- Anti-Wrinkle Injections vs Dermal Fillers
- Jaw Slimming Injections for Clenching and Grinding
- How Long Do Lip Fillers Last?
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This article is for general educational purposes and does not replace a personalised consultation with a licensed medical aesthetics provider. Individual results vary.