https://www.tga.gov.au/news/media-releases/referring-cosmetic-injectables-advertising
According to the TGA doctors must not even allude to S4 treatments on a website
First described by Carruthers and Carruthers in 1992; today’s split-face trials confirm that tailored, low-dose protocols can soften the “11s” without brow heaviness.proceedings.ageditor.ar
I've offered this treatment to my patients since 1998.
True “Duchenne smiles” engage the outer orbicularis; careful dosing here preserves warmth while smoothing radiating lines. An under-correction is safer than over-paralysis.
Horizontal lines across the forehead can be readily reduced with treatment, but if not careful some brow drop might eventuate. We go for the "Goldilocks zone": not too mobile, not too frozen, but just right. Dose, and treatment pattern, must be highly individualised for each patient: more than for any other treated area.
These are the lines on each side of your nose. Patients who have just the frown lines treated will often get exaggerated bunny lines - a "give away" that treatment has occurred. Treating these lines will often help improve a "gummy smile" as well.
The muscle "depressor anguli oris" or "DAO" is responsible for pulling down the corner of your mouth. Treating it can reduce that sad look and improve the marionette lines on either side of your chin. Ultrasound studies show average lift angles of 4–6° at three weeks.SpringerLink
People who grind and clench their teeth a lot often get jaw pain/"TMJ" pain, and develop a masculine-looking squareness to the jaw's appearance. Treatment into the masseter muscle can relieve the pain and soften the jawline. Placebo-controlled trials report meaningful reductions in nocturnal clenching, pain scores and jaw width within one month, lasting 4–6 months.BioMed Central
Judicious and small doses of treatment around your mouth can help your lips pout and reduce so-called "smoker's lines" (caused by pursing lips moreso than smoking). But doses have to be very careful or you will lose mouth control.
Treatment can have a number of other uses. Treating migraine and treating sweating are two more examples. Explore your options in a consultation.
Peach Cosmetic Medicine