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Compare the Top 5
Every peptide brand side by side — ratings, pricing, and key features at a glance.
Side-by-Side Comparison
How the top 5 research peptide brands stack up on the metrics that matter.
AminoClub#1 | HLX Labs#2 | Meridian Bio#3 | NovaPeptide#4 | PureLab Supply#5 | |
|---|---|---|---|---|---|
| Our Rating | 4.9 | 4.8 | 4.6 | 4.3 | 4.1 |
| Price | See pricing | $7.99 – $169.99 | From $31.00 | From $22.00 | From $29.00 |
| Third-Party Tested | Yes | Every batch (COA) | Yes | Yes (on request) | Yes |
| Verified Purity | Research-grade | Lab-verified | 99%+ | 97%+ | 98%+ |
| Shipping | Fast US dispatch | 24–48h, free $250+ | 1–2 days, cold pack | 3–6 days | 2–4 days |
| Bulk Discounts | Volume pricing | Wholesale + HLXLABS15 | Up to 15% | Up to 20% | Up to 10% |
| Returns | Per policy | Per policy | 30-day | 14-day | 30-day guarantee |
| Visit AminoClub | Visit HLX Labs | Visit Site | Visit Site | Visit Site |
How We Rank
Every peptide brand is scored against the same criteria, so our rankings stay consistent and fair.
Third-Party Lab Testing
Every brand is scored on whether it publishes independent HPLC/MS purity reports for each batch — non-negotiable for research use.
Verified Purity
We weight suppliers that consistently certify ≥99% purity and make their certificates of analysis publicly accessible.
Shipping & Cold Chain
Reconstitution-sensitive compounds need fast, properly packed shipping. We track delivery speed and packaging quality.
Pricing & Value
Cost per mg, bulk discounts, and loyalty pricing — measured against the purity you actually receive.
AminoClub
A broad catalog of the most in-demand research peptides paired with strict research-use compliance — our top pick for 2026.
Visit AminoClub