Among the various treatments available for reducing wrinkles, Botox works uniquely by relaxing muscles. It acts at the neuromuscular junction of striated muscles by blocking the release of acetylcholine, a chemical that triggers muscle contractions. By preventing the muscles from contracting, Botox helps smooth out wrinkles in the areas where it is injected.
The most commonly treated expression lines include :
- Forehead wrinkles : Horizontal lines that appear when you raise your eyebrows can be reduced with Botox injections.
- Frown lines : The vertical lines between the eyebrows (glabellar lines), which often give a tired or stern look, can be softened with Botox for a more relaxed appearance.
- Crow’s feet : The small lines around the eyes that form when smiling can be smoothed out, resulting in a more rested look.
- Bunny lines : Fine lines on either side of the nose that appear when scrunching the nose can also be reduced with Botox.
The position of the eyebrows is maintained by a balance between the depressor muscles near the brows (orbicularis, corrugator, and procerus muscles) and the elevator muscle (frontal muscle). Horizontal forehead wrinkles result from the frontal muscle’s contraction, while vertical frown lines are caused by the action of the depressor muscles. For optimal results, both muscle groups should be treated to maintain balance in the upper face.