The finder
Pick what you want to change. See who actually measured it.
Every other tool like this gives you a compound and a match score. Those scores are not measured. Ours does not exist. What you get instead is what was actually measured and where: trials in people first with the participant count, then the animal and cell work kept separate, then what people using it report, and the trials that found nothing, counted rather than dropped.
82 of the 444 compounds here have never been through a trial in people. That is worth knowing and it is not a verdict: a molecule nobody can patent has no sponsor to pay for a trial, so a thin human record is usually a fact about money rather than about the compound. Where that is the case, this says so and shows you what does exist.
What are you trying to change?
Pick as many as you like. The number on each one is how many people it has been measured in across the whole archive, so you can see where the evidence is before you choose.
Or start from the compounds
Somebody handed you a stack. What is actually known about it?
Add what you are looking at and you get every outcome those compounds have been measured for in people, and then the longer list of the ones they have not.
Tanning and pigmentation
Does it actually tan you?
Melanin density measured on the skin, which is one of the few cosmetic endpoints that is objective.
3 people · 2 human studies · 2 compounds
- 3 people1 study
Three male volunteers dosed subcutaneously for two weeks: increased pigmentation, mild nausea at most doses, somnolence and fatigue at 0.03 mg/kg, and spontaneous penile erections lasting 1 to 5 hours after dosing.
Life Sciences, 1996 · 3 people
- no headcount stated1 study
Randomised open-label crossover in healthy adults, 10 to 60 mg. Median time to peak 24 hours at 10 to 30 mg and 2 to 4 hours at 45 to 60 mg; mean terminal half-life 19.6 to 57.1 hours; dose-related falls in serum iron and transferrin saturation. Injection site erythema and pruritus were the treatment-related adverse...
Drugs in R and D, 2024 · no headcount in the line
- no headcount stated0 studies
How this is counted
Human studies only. Animal and test-tube work never enters this ranking, because the question you asked was about a person.
A compound is listed for an outcome only when a citation on its own page states that outcome and reports a result for it. Naming it is not enough: a paper that measures testosterone and reports a result about something else does not count as testosterone evidence, which is a mistake this tool made on its first run and no longer makes.
People counts are read out of the study lines themselves and are deliberate undercounts. Where a line states no number, the study still counts as a study and adds nothing to the headcount. Counts are never added across compounds, because the same person can appear in more than one trial.
Ranking is by people measured. That is a fact about the evidence, not a judgement about the compound, and it is the only ordering this site will defend. A compound at the top of a list is the most studied, which is not the same as the best.
Nothing here is advice, and nothing here is a recommendation to take anything.