[Sam Tiktin]

A running list of the peptide suppliers we’ve reviewed on Peptide News, with current discount codes and purity documentation. Ordered by our current top picks — share your own experience with any of these (or others) below.

1. Iron Peptides

Rating: ★★★★★ 5.0

Purity/Docs: ≥99.6% Purity · COA-Backed · Ships Next-Day

Discount code: IRONMAN (15% off)

Visit Iron Peptides →

2. AminoClub

Rating: ★★★★★ 4.8

Purity/Docs: 99%+ Purity · COA Published · Ships in 0-2 Days

Discount code: AMINOSAVE (20% off)

Visit AminoClub →

3. Pinnacle Peptide Labs

Rating: ★★★★★ 5.0

Purity/Docs: ≥99% Purity · USA Made · Ships Next Business Day

Discount code: PPL15 (15% off)

Visit Pinnacle Peptide Labs →

4. Peptides Kingdom

Rating: ★★★★★ 5.0

Purity/Docs: 99%+ Purity · 3rd-Party Tested · ISO 9001 Certified

Discount code: KING15 (15% off)

Visit Peptides Kingdom →

5. Ascension Peptides

Rating: ★★★★☆ 4.5

Purity/Docs: 99%+ Purity · 3rd-Party Tested · US-Based Shipping

Discount code: PEPTIDE10 (20% off)

Visit Ascension Peptides →

Research-use only. Not medical advice, and these compounds are not intended for human or animal consumption. Some links above are affiliate links — they may result in compensation at no additional cost to you.

[PepGorilla]

Great roundup! A couple of things we look for beyond price when picking a supplier: does the COA match the actual lot number on the vial (not just a generic PDF), and how fast do they actually respond if you email asking about testing methodology. If anyone here has used a supplier not listed above, drop your experience below — good or bad, it helps everyone make a more informed call.

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