Head-to-head · 2026 audit

Protide Health vs Southern Aminos

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

Protide Health
7.67/10

Protide Health

Southern Aminos
8.09/10

Southern Aminos

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Protide Health

7.67 /10

Strong

Higher score · 0.42 ahead

Southern Aminos

8.09 /10

Strong

Factor by factor

Protide HealthFactorSouthern Aminos
  • 9.1Lab Credibilityweight 55%9.0
  • 7.0Shipping & Refundweight 20%7.5
  • 5.4Pricingweight 15%8.5
  • 3.0Operating Historyweight 5%2.3
  • 6.0Transparencyweight 5%5.0
  • 22Certificates confirmed at the lab28
  • 1Labs named on certificates2
Show as a table
Protide Health vs Southern Aminos score breakdown by category
CategoryProtide HealthSouthern Aminos
Lab Credibility9.19.0
Shipping & Refund7.07.5
Pricing5.48.5
Operating History3.02.3
Transparency6.05.0
Overall7.678.09

Products both carry, price for price

Price per unit (mg unless marked) for products both Protide Health and Southern Aminos carry
PeptideProtide Healthper unitSouthern Aminosper unit
BPC-157Guide →$4.88/mg$3.84/mg
TB-500Guide →$8.50/mg$4.80/mg
GHK-CuGuide →$0.65/mg$0.40/mg
CJC-1295Guide →$7.50/mg$6.40/mg
IpamorelinGuide →$7.50/mg$4.80/mg
Semax$6.00/mg$3.52/mg
Selank$6.50/mg$3.52/mg
Melanotan-2$4.00/mg$4.16/mg
Tesamorelin$7.00/mg$3.96/mg
RetatrutideGuide →$5.50/mg$1.84/mg
TirzepatideGuide →$6.67/mg$2.07/mg
PT-141$5.50/mg$4.40/mg
AOD-9604$12.00/mg$8.80/mg
5-Amino-1MQ$2.20/mg$1.60/mg
IGF-1 LR3$85.00/mg$60.00/mg
Cagrilintide$15.50/mg$11.92/mg
ARA-290$5.00/mg$5.28/mg

How they compare: the verdict

Southern Aminos takes this matchup by a clear margin, 8.09 to 7.67 on the published formula. Its biggest edge is pricing, where it scores 8.5 against Protide Health's 5.4.

It isn't a clean sweep. Protide Health actually edges ahead on transparency (6.0 vs 5.0), so if that factor matters most to you it's worth weighing.

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

Across the 17 peptides both carry, Southern Aminos is cheaper per unit more often (Protide Health wins on 2, Southern Aminos on 15). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).

Protide Health vs Southern Aminos: FAQ

Protide Health or Southern Aminos: which is better?

Southern Aminos takes this matchup by a clear margin, 8.09 to 7.67 on the published formula. Its biggest edge is pricing, where it scores 8.5 against Protide Health's 5.4. It isn't a clean sweep. Protide Health actually edges ahead on transparency (6.0 vs 5.0), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both Protide Health and Southern Aminos have independently verified third-party COAs, so the gap comes down to the other categories. Across the 17 peptides both carry, Southern Aminos is cheaper per unit more often (Protide Health wins on 2, Southern Aminos on 15). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).

Do Protide Health and Southern Aminos both use third-party testing?

Protide Health: independently verified third-party COAs. Southern 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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