The single-molecule field has progressed to triple agonism (retatrutide)
A study using ten consecutive days of sham-controlled cTBS (600 pulses) delivered bilaterally over the posterior cerebellum of 20 patients with cervical dystonia led to a small (15%) improvement of the Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) and the recovery of the motor map responsiveness measured as a reduction of the heterotopic PAS M1 potentiation, i.e., only APB and not FDI excitability was responsive to PAS post-intervention [170]
10.1038/d41586-022-01988-2
However, most of these are limited to bruising and bleeding at the injection site, headache, and dizziness
According to a 2012 study on a serum containing barley bioengineered epidermal growth factor, "clinical evaluations showed statistically significant improvement in the appearance of fine lines and rhytids, skin texture, pore size , and various dyschromatic conditions apparent within the first month of use, and continuing improvement trends for the duration of the study" (which was 3 months)
Most researchers report initial subtle improvements within 7 to 10 days, with significant changes in sleep quality emerging over 3 to 6 weeks