LabFirst Peptides vs Modern Aminos
Two top US peptide sources scored on the identical published formula: lab credibility, shipping, pricing, operating history, and transparency.
- LabFirst Peptides
- 7.73/10
LabFirst Peptides
- Modern Aminos
- 7.88/10
Modern Aminos
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Factor by factor
- 8.9Lab Credibilityweight 55%8.7
- 7.5Shipping & Refundweight 20%7.0
- 6.3Pricingweight 15%7.8
- 0.7Operating Historyweight 5%4.9
- 7.0Transparencyweight 5%5.5
- 26Certificates confirmed at the lab32
- 1Labs named on certificates3
Show as a table
| Category | LabFirst Peptides | Modern Aminos |
|---|---|---|
| Lab Credibility | 8.9 | 8.7 |
| Shipping & Refund | 7.5 | 7.0 |
| Pricing | 6.3 | 7.8 |
| Operating History | 0.7 | 4.9 |
| Transparency | 7.0 | 5.5 |
| Overall | 7.73 | 7.88 |
Products both carry, price for price
| Peptide | LabFirst Peptidesper unit | Modern Aminosper unit |
|---|---|---|
| AOD-9604 | $7.50/mg | $7.80/mg |
| BPC-157Guide → | $5.90/mg | $5.40/mg |
| CJC-1295 + Ipamorelin | $6.75/mg | $5.20/mg |
| CJC-1295Guide → | $8.50/mg | $10.40/mg |
| GHK-CuGuide → | $0.59/mg | $0.64/mg |
| IpamorelinGuide → | $6.50/mg | $6.40/mg |
| KPV | $4.90/mg | $3.90/mg |
| Melanotan-2 | $3.50/mg | $3.80/mg |
| MOTS-c | $3.75/mg | $2.60/mg |
| NAD+ | $0.16/mg | $0.10/mg |
| PT-141 | $4.00/mg | $4.10/mg |
| Selank | $2.63/mg | $4.50/mg |
| Semax | $2.30/mg | $4.20/mg |
| Tesamorelin | $7.50/mg | $7.10/mg |
How they compare: the verdict
Modern Aminos takes this matchup by a razor-thin margin, 7.88 to 7.73 on the published formula. Its biggest edge is operating history, where it scores 4.9 against LabFirst Peptides's 0.7.
It isn't a clean sweep. LabFirst Peptides actually edges ahead on transparency (7.0 vs 5.5), so if that factor matters most to you it's worth weighing.
On lab evidence, the heaviest-weighted factor, both LabFirst Peptides and Modern Aminos have independently verified third-party COAs, so the gap comes down to the other categories.
Across the 14 peptides both carry, pricing is evenly split (LabFirst Peptides 7, Modern Aminos 7). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
LabFirst Peptides vs Modern Aminos: FAQ
LabFirst Peptides or Modern Aminos: which is better?
Modern Aminos takes this matchup by a razor-thin margin, 7.88 to 7.73 on the published formula. Its biggest edge is operating history, where it scores 4.9 against LabFirst Peptides's 0.7. It isn't a clean sweep. LabFirst Peptides actually edges ahead on transparency (7.0 vs 5.5), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both LabFirst Peptides and Modern Aminos have independently verified third-party COAs, so the gap comes down to the other categories. Across the 14 peptides both carry, pricing is evenly split (LabFirst Peptides 7, Modern Aminos 7). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).
Do LabFirst Peptides and Modern Aminos both use third-party testing?
LabFirst Peptides: independently verified third-party COAs. Modern Aminos: independently verified third-party COAs.
How was this comparison scored?
Both vendors are scored on the identical published formula: lab credibility 55%, shipping 20%, pricing 15%, operating history 5%, transparency 5%. When third-party testing cannot be independently verified, a testing gate holds the score under a cap that starts at 6.0 and rises by at most 2.5 points for operating history, shipping and reviews. Neither vendor can pay to change a score.
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