This naturally occurring tripeptide is derived from alpha-melanocyte-stimulating hormone (-MSH)
If you are curious about the practical details of using this medication, the guide on how fast semaglutide works covers the timeline comprehensively
doi: 10.1136/jnnp-2019-322338
And what they found was that the different groups, and here, again, I'm being very general with my description of these studies, but what they found is that the physiological response, the insulin response, the blood glucose response, and the subjective measures of whether or not people enjoyed something or not, were heavily influenced by what they were told were in these milkshakes
Hormones stimulate oil glands, which can increase sebum production and sometimes lead to acne