First, most trials have only followed participants for up to 2 years
You want to know what is legal, what is evidence-based, what requires a prescription, what can go wrong, and how a careful clinician would approach the subject
By the time the serum is applied, peptide activity may be 4060% of what the label claims
While experimental peptide drugs are not approved for human use, you can easily purchase them online from numerous companies and Canadian compounding facilities creating and selling the drugs for research use only. Health Canada cracked down on this last year, seizing 42 unauthorized injectable peptide drugs sold by the company Canada Peptide
There is no clinical trial data specifically studying this approach, but some prescribers report anecdotally that patients maintain better long-term responses with periodic dose reductions