Head-to-head · 2026 audit

Ameano Peptides vs Transition Biotech

Two top US peptide sources scored on the identical published formula: lab credibility, shipping, pricing, operating history, and transparency.

Ameano Peptides
7.80/10

Ameano Peptides

Transition Biotech
7.98/10

Transition Biotech

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Higher score · 0.18 ahead

Transition Biotech

7.98 /10

Strong

Factor by factor

Ameano PeptidesFactorTransition Biotech
  • 8.3Lab Credibilityweight 55%9.2
  • 8.0Shipping & Refundweight 20%6.0
  • 7.9Pricingweight 15%9.5
  • 2.9Operating Historyweight 5%1.8
  • 6.0Transparencyweight 5%4.0
  • 28Certificates confirmed at the lab10
  • 1Labs named on certificates1
Show as a table
Ameano Peptides vs Transition Biotech score breakdown by category
CategoryAmeano PeptidesTransition Biotech
Lab Credibility8.39.2
Shipping & Refund8.06.0
Pricing7.99.5
Operating History2.91.8
Transparency6.04.0
Overall7.807.98

Products both carry, price for price

Price per unit (mg unless marked) for products both Ameano Peptides and Transition Biotech carry
PeptideAmeano Peptidesper unitTransition Biotechper unit
BPC-157Guide →$4.40/mg$3.50/mg
TB-500Guide →$7.50/mg$4.50/mg
GHK-CuGuide →$0.53/mg$0.30/mg
CJC-1295Guide →$7.60/mg$4.50/mg
IpamorelinGuide →$4.40/mg$3.50/mg
RetatrutideGuide →$4.33/mg$3.50/mg
TirzepatideGuide →$1.93/mg$1.33/mg
Kisspeptin-10$4.80/mg$4.00/mg

How they compare: the verdict

Transition Biotech takes this matchup by a razor-thin margin, 7.98 to 7.80 on the published formula. Its biggest edge is pricing, where it scores 9.5 against Ameano Peptides's 7.9.

It isn't a clean sweep. Ameano Peptides actually edges ahead on shipping & refunds (8.0 vs 6.0), so if that factor matters most to you it's worth weighing.

On lab evidence, the heaviest-weighted factor, both Ameano Peptides and Transition Biotech have independently verified third-party COAs, so the gap comes down to the other categories.

Across the 8 peptides both carry, Transition Biotech is cheaper per unit more often (Ameano Peptides wins on 0, Transition Biotech on 8). 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.

Ameano Peptides vs Transition Biotech: FAQ

Ameano Peptides or Transition Biotech: which is better?

Transition Biotech takes this matchup by a razor-thin margin, 7.98 to 7.80 on the published formula. Its biggest edge is pricing, where it scores 9.5 against Ameano Peptides's 7.9. It isn't a clean sweep. Ameano Peptides actually edges ahead on shipping & refunds (8.0 vs 6.0), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both Ameano Peptides and Transition Biotech have independently verified third-party COAs, so the gap comes down to the other categories. Across the 8 peptides both carry, Transition Biotech is cheaper per unit more often (Ameano Peptides wins on 0, Transition Biotech on 8). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).

Do Ameano Peptides and Transition Biotech both use third-party testing?

Ameano Peptides: independently verified third-party COAs. Transition Biotech: 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.

More comparisons

Other head-to-heads featuring Ameano Peptides or Transition Biotech.

Age verification

Are you 18 or older?

Peptide Source Review covers research peptides: substances sold for laboratory and research purposes, not for human consumption. By continuing, you confirm that you are at least 18 years old and that nothing on this site is medical or legal advice.

I am not 18, leave

We use a one-time browser memory (localStorage) so you don’t see this again on this device.