Head-to-head · 2026 audit

LabFirst Peptides vs Luv 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

Luv Aminos
7.90/10

Luv Aminos

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

Factor by factor

LabFirst PeptidesFactorLuv Aminos
  • 8.9Lab Credibilityweight 55%8.3
  • 7.5Shipping & Refundweight 20%8.0
  • 6.3Pricingweight 15%9.5
  • 0.7Operating Historyweight 5%1.1
  • 7.0Transparencyweight 5%5.0
  • 26Certificates confirmed at the lab17
  • 1Labs named on certificates1
Show as a table
LabFirst Peptides vs Luv Aminos score breakdown by category
CategoryLabFirst PeptidesLuv Aminos
Lab Credibility8.98.3
Shipping & Refund7.58.0
Pricing6.39.5
Operating History0.71.1
Transparency7.05.0
Overall7.737.90

Products both carry, price for price

Price per unit (mg unless marked) for products both LabFirst Peptides and Luv Aminos carry
PeptideLabFirst Peptidesper unitLuv Aminosper unit
BPC-157 + TB-500$4.50/mg$5.00/mg
BPC-157Guide →$5.90/mg$3.00/mg
CJC-1295 + Ipamorelin$6.75/mg$4.00/mg
GHK-CuGuide →$0.59/mg$0.50/mg
KLOW$1.69/mg$0.94/mg
KPV$4.90/mg$4.00/mg
Melanotan-2$3.50/mg$2.50/mg
MOTS-c$3.75/mg$3.00/mg
NAD+$0.16/mg$0.06/mg
PT-141$4.00/mg$3.00/mg
RetatrutideGuide →$3.57/mg$3.50/mg
Selank$2.63/mg$3.00/mg
Semax$2.30/mg$2.00/mg
Tesamorelin$7.50/mg$7.00/mg
TirzepatideGuide →$3.83/mg$2.00/mg

How they compare: the verdict

Luv Aminos takes this matchup by a razor-thin margin, 7.90 to 7.73 on the published formula. Its biggest edge is pricing, where it scores 9.5 against LabFirst Peptides's 6.3.

It isn't a clean sweep. LabFirst Peptides actually edges ahead on transparency (7.0 vs 5.0), so if that factor matters most to you it's worth weighing.

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

Across the 15 peptides both carry, Luv Aminos is cheaper per unit more often (LabFirst Peptides wins on 2, Luv Aminos on 13). 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 Luv Aminos: FAQ

LabFirst Peptides or Luv Aminos: which is better?

Luv Aminos takes this matchup by a razor-thin margin, 7.90 to 7.73 on the published formula. Its biggest edge is pricing, where it scores 9.5 against LabFirst Peptides's 6.3. It isn't a clean sweep. LabFirst Peptides actually edges ahead on transparency (7.0 vs 5.0), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both LabFirst Peptides and Luv Aminos have independently verified third-party COAs, so the gap comes down to the other categories. Across the 15 peptides both carry, Luv Aminos is cheaper per unit more often (LabFirst Peptides wins on 2, Luv Aminos on 13). 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 Luv Aminos both use third-party testing?

LabFirst Peptides: independently verified third-party COAs. Luv 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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