Guides
Best-of, ranked on evidence
Every guide here is ordered by the published literature, with the criteria stated at the top and the exclusions listed with reasons at the bottom. Where a link pays us a referral fee, it is labelled.
Peptides by goal
- Best anti-aging peptides Longevity is where peptide marketing is least constrained by evidence. These are the compounds with a real mechanism and at least some human signal, ranked accordingly. Several famous names are in the excluded list with reasons. 5 ranked · 3 excluded
- Best HGH peptides Every compound here raises growth hormone. The differences are in selectivity, duration, and whether anyone has studied it properly in people. Ranked on the last of those. 6 ranked · 3 excluded
- Best nootropic peptides Most peptide nootropics are Russian pharmaceuticals with registration there and little Western trial data. That is not nothing, but it is not the same as an FDA approval, and the ranking reflects it. 4 ranked · 3 excluded
- Best peptides for fat loss Six compounds that have actually been studied for body composition, in the order the human evidence supports. Two are approved drugs with large trials behind them. The rest are research compounds, and we say exactly how thin the data is for each. 6 ranked · 3 excluded
- Best peptides for hair growth Hair is where peptide claims outrun evidence most badly. Two compounds have any human signal. The rest is extrapolation from skin biology or from a single mouse paper. If you want hair-loss treatment that works, the answer is finasteride and minoxidil from a telehealth prescriber, not a peptide. 2 ranked · 2 excluded
- Best peptides for healing and injury recovery This is the most searched peptide category and the one with the widest gap between popularity and proof. BPC-157 and TB-500 are everywhere and neither has an adequately powered human trial. GHK-Cu, which nobody talks about, has the best human data in the group. 5 ranked · 2 excluded
- Best peptides for joint pain Joint pain is where the healing peptides get sold hardest and studied least. One approved polysaccharide has real osteoarthritis research behind it. The famous peptides have rodent tendon data. 4 ranked · 1 excluded
- Best peptides for libido and erectile function This is one of the few peptide categories with an FDA-approved compound designed specifically for the indication. It acts centrally, which is why it is interesting where PDE5 inhibitors fail. For most men, though, a telehealth ED prescriber is the faster answer. 3 ranked · 1 excluded
- Best peptides for muscle growth The GH-axis compounds dominate this category, and the honest summary is that they raise growth hormone and IGF-1 reliably while the muscle-building outcome data in healthy adults is thin. The compounds below are ranked on how well their mechanism is documented in humans. 6 ranked · 3 excluded
- Best peptides for skin Cosmetic peptides are the one corner of this field where controlled human trials are common, because the cosmetics industry runs them. These are ranked on that data, and the ranking does not match the marketing budgets. 5 ranked · 1 excluded
- Best peptides for sleep Most peptides marketed for sleep are GH secretagogues taken at bedtime, where the sleep benefit is a side effect of the GH pulse. The one compound literally named for sleep has inconsistent human results. We rank on what is reproducible. 4 ranked · 2 excluded
- Safest peptides Safe means studied, not mild. A compound that has been through regulatory review has a characterised side-effect profile. A compound with no human data has an unknown one, however gentle it feels. This list is the former. 5 ranked · 3 excluded
Clinics by service
- Best biomarker testing companies Consumer biomarker testing now runs from one-off lab orders to annual memberships with 100+ markers and clinicians who can prescribe. The difference that matters most is not the biomarker count but what you pay in a year and whether anyone acts on the results. 11 ranked
- Best ED telehealth providers ED telehealth is the most commoditised category here. The medication is generic and the differences are in price, format, and whether anyone looks at the whole picture, including testosterone. 3 ranked
- Best GLP-1 telehealth providers The GLP-1 telehealth market changed when the FDA ended the semaglutide shortage listing and compounded supply tightened. These are the providers prescribing branded or legitimately compounded product, ranked on price transparency, labs, and prescriber model. 6 ranked
- Best hair loss telehealth providers Finasteride and minoxidil are the two treatments with real evidence, and every provider here prescribes them. The differences are price, formulation, and whether topical finasteride is offered for men who want to limit systemic exposure. 2 ranked
- Best menopause and HRT telehealth Menopause care is where telehealth has most clearly improved access, because the in-person system was failing women badly. These providers prescribe hormone therapy and non-hormonal alternatives online. 4 ranked
- Best online TRT clinics Telehealth clinics that prescribe testosterone replacement, ranked on licensed states, whether labs are included, who actually prescribes, and how hard it is to leave. Not on who pays us most. 7 ranked
- Best peptide therapy clinics A prescribing clinic can only offer compounds a pharmacy may legally compound, which after the FDA 503A Category 2 decisions excludes BPC-157, ipamorelin and CJC-1295. The clinics here work inside that, which is the point. 5 ranked
- TRT clinics with bloodwork included Lab work is where TRT telehealth pricing gets opaque. These clinics bundle the initial and follow-up panels into the membership so the headline price is the real one. 5 ranked
Research peptide vendors compared: lab testing, prices and shipping for the companies that sell peptides online.
Sources
Regulatory and primary sources
- FDA: Bulk drug substances that may present significant safety risks (Category 2 and withdrawn nominations) ↗ · content current as of April 22, 2026; checked November 5, 2026
- HHS: Enforcement Discretion Policy Regarding 503A Compounding Using Certain Peptide Bulk Drug Substances (Federal Register, 91 FR 68526) ↗ · interim policy published October 30, 2026; checked November 5, 2026
- FDA: Bulk drug substances used in compounding under section 503A ↗ · how the 503A categories work
- FDA: Unapproved drugs ↗ · status of products sold "for research use only"
- WADA Prohibited List ↗ · peptide hormones and growth factors, class S2
- PubMed (National Library of Medicine) ↗ · source of every literature reference on this site