Vendor and compound
Semaglutide from Good Science Bio
Good Science Bio lists Semaglutide at $6.50 per mg, level with the peer median. No third-party certificate for Semaglutide from Good Science Bio has been located, so nothing here establishes what is in the vial. The cheapest listed price for Semaglutide anywhere in the index is $4.20 per mg at Bench Grade Peptides.
All Semaglutide vendors · Good Science Bio profile · scores 69.2 of 100, rank 20 · 0 certificates for this compound · verified 28 Sept 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $65 | $6.50 | 0% | GLP-1S |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
No third-party certificate for Semaglutide from Good Science Bio has been located.
That is a statement about the public record, not an accusation. The vendor may test and not publish, or publish somewhere we have not read. What it means for a buyer is that the price above is the only thing established here, and price says nothing about what is in the vial.
Vendors whose certificates you can check yourself lists the ones where that gap is closed.
Other vendors selling Semaglutide
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Amino Club | 86.1 | $5.00 | 0 |
| Bench Grade Peptides | 79.4 | $4.20 | 1 |
| Hydro Research Peptides | 78.7 | $5.00 | 2 |
| Simple Peptide | 77.2 | — | 1 |
| Koi Peptides | 75.1 | $7.00 | 0 |
| Prime Peptides | 74.4 | $11.00 | 1 |
| Ascension Peptides | 74.4 | — | 1 |
| Evo Labs Research | 71.9 | $7.50 | 0 |
Ordered by overall evidence score. See every vendor listing Semaglutide.
Questions
Is Semaglutide from Good Science Bio third-party tested?
Not so far as this index can establish. No third-party certificate for Semaglutide from Good Science Bio has been located. The vendor may test and not publish; what can be said is that nothing public establishes the contents of a vial.
How much does Semaglutide cost at Good Science Bio?
$6.50 per milligram, from 10 mg at $65. The peer median across every vendor we price for Semaglutide is $6.50 per mg, so this is 0% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is Good Science Bio a good place to buy Semaglutide?
Good Science Bio scores 69.2 of 100 on the published rubric and ranks 20 overall, computed from its documentation rather than from opinion. For Semaglutide specifically no certificate is on file, which is the gap to weigh. Bench Grade Peptides lists it cheaper at $4.20 per mg.