Goals and categories
What people research for common goals, and how much is actually known about each. Categories, not recommendations.
MaxHuman Editorial
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This is the question everyone arrives with: which peptide is for my goal? The honest answer is that this framing skips a step. Compounds get grouped by the pathway they act on, and within any group the evidence ranges from multiple human trials to a single rodent study.
So what follows is a map of what people research for each goal, with the state of the evidence attached. It is not a recommendation, and the order is not a ranking.
Metabolic and weight management
The most heavily studied category, and the only one where several compounds have full human trial programmes behind them. Semaglutide and tirzepatide are approved medicines with extensive human data. Retatrutide is investigational — real phase-2 human data, not approved, long-term picture incomplete.
This is also the category with the most consequential interactions, particularly with insulin and other glucose-lowering medicines. See Is this for you?
Recovery and tissue repair
Heavily discussed, thinly evidenced. BPC-157 and TB-500 dominate the conversation; the published work is overwhelmingly animal-model. No controlled human efficacy data exists for either at the time of writing. That is a Grade D position — interesting, unproven in people.
Skin and appearance
GHK-Cu is the common entry point. Some topical cosmetic research exists, which is a different question from injected use. Read the evidence state on the compound page rather than assuming the topical findings transfer.
Growth hormone pathway
A mixed group. Tesamorelin is approved for a specific, narrow indication and has human trial data behind it. Others in this group — such as ipamorelin and CJC-1295 — are not approved and have far less human evidence. The category label hides a very large difference in what is known.
Longevity
The least settled category. Compounds such as MOTS-c are studied mostly in preclinical models, and the outcomes people care about — living longer, ageing better — are exactly the outcomes that are hardest and slowest to demonstrate in humans. Treat confident claims here with particular scepticism.
How to actually use this page
Pick the goal that matches yours, open the compound pages linked above, and read the evidence grade on each claim before anything else. Then read Is this for you?, because suitability rules out more people than the evidence does. Neither this page nor this site will tell you what to take — that is a conversation with a qualified professional who knows your history.
This is educational information, not medical advice, and not a substitute for a qualified healthcare professional. Nothing here recommends a dose or a compound.