Expression lines

Different facial regions lose collagen and elasticity during aging, causing sagging skin.

Repetitive muscle contraction leads to the development of expression lines, predominantly in the glabellar (between the eyebrows), frontal and periocular (crow's feet) areas. Therefore, these areas have been the target of rejuvenation techniques, among which botulinum toxin type A is the most popular non-surgical treatment worldwide.

Botulinum toxin acts as a muscle relaxant, blocking the release of the neurotransmitter acetylcholine, a key messenger for muscle contractions, thereby reducing or eradicating the appearance of expression lines.

The popularity of botulinum toxin treatments is evidenced by the 80% to 90% of patients reporting satisfaction with their treatment, many of whom say they would recommend the treatment to others.