Botox or filler: what is the difference and when do I need each?
Botulinum toxin and filler do not treat the same problem. Botulinum toxin reduces the activity of a specific muscle, so it suits lines caused mainly by movement. Filler adds volume or support, or improves a structural contour, depending on the product and area. In timing, botulinum toxin usually takes days to show and often lasts 3–4 months, while many hyaluronic acid fillers give a visible change straight after injection, but swelling makes it too early to judge the final result, and how long it lasts ranges from months to a year or more depending on the product and area.
Key numbers
- 3–7 days to the usual onset — Botulinum toxin
- Often 3–4 months — Botulinum toxin duration
- Volume change is usually immediate — Hyaluronic acid filler
- Depends on product and area — Hyaluronic acid filler duration
How do I choose between them?
- If the line appears mainly when frowning, raising the brows or smiling: ask first about the muscle's role.
- If the problem is lost support, volume or contour: ask about the structure and the right layer for filler.
- If the problem is skin quality, pigmentation or pores: neither botulinum toxin nor filler is the automatic answer; the treatment may be skin-directed, a device or a skincare plan.
- Some faces need a careful combination, but a combination should answer two different problems, not just stack procedures.
Key takeaways
- Movement = think of the muscle before volume.
- Lost support/volume = think of structure before botulinum toxin.
- Skin quality/color = do not make injections the automatic answer.
Botox, Filler, Biostimulators or Laser? How to Choose