Every supplier is scored on the same seven criteria, with the same weights, from public data you can check yourself. Peptide+ is included and scored exactly like everyone else. If a supplier leads, it is because it earns the score, not because the scale is tilted.
Public certificates of analysis from an independent lab such as Janoshik. The single best signal of what is actually in the vial.
A free pre-purchase consultation and written dosing or protocol guidance from someone who knows the research.
Real, attributable, proof-of-purchase reviews. We never count anonymous or on-site testimonials.
How fast orders actually arrive and how much of the area is covered, measured against stated windows.
A named support channel with a real response time, follow-up after the order, and help resolving any issue.
Breadth of the research catalogue and how reliably listed items are in stock.
Whether prices are public and upfront, with no surprise fees at checkout.
Weights add up to 100%. Each supplier scores 0 to 5 per criterion; the weighted total drives the ranking.
A score is only as good as the evidence behind it. So next to each score we show how confident we are in it, and the score itself follows that confidence.
We checked the evidence ourselves, for example we opened a public third-party COA or saw the live price list. Full points.
The supplier asserts it in their own marketing, but we have not been able to confirm it independently yet. Partial points.
Not offered, or no public evidence found at the time of review. No points.
Every supplier here, including Peptide+, is scored with the exact same seven criteria and weights, from public data you can check yourself. Peptide+ is affiliated with this site and is held to the identical method as everyone else; it ranks first in the regions where it operates because it leads on lab testing, guidance, verified reviews and delivery, not because the scoring favours it. Competitor scores are checked against each public website; where we cannot open the evidence, we mark a criterion claimed or none rather than assuming it is true.