Mike’s Note: When I check off this list for myself, I personally use a source that consistently hits every mark — batch‑linked COAs, transparent policies, and reliable shipping. If you want to see an example vendor that checks all the boxes, here’s the one I trust → See My Trusted Source

1. Vendor Transparency

• COAs: Third-party lab results for every batch.
• Recent testing: Within the last 12 months.
• Lot linkage: COA ties to the exact vial/batch you receive.

2. Product Quality

• Purity: ≥ 98% (disclosed on COA).
• Form: Lyophilized powder (not pre-mixed liquid).
• No mystery fillers: Avoid undisclosed stabilizers/bulking agents.

3. Sterility & Storage

• Sterile, tamper-evident vials and sealed packaging.
• Clear cold-chain or storage guidance when applicable.
• Reconstitution and storage info presented as educational content.

4. Vendor Reputation

• Verified, detailed reviews (avoid copy-paste lookalikes).
• Positive standing in peptide education communities.
• Responsive support; provides COAs and policy details promptly.

5. Pricing & Red Flags

• Prices wildly below market are a warning sign.
• Avoid vague “miracle blends” without full transparency.
• Watch for hidden fees (overnight cold packs, handling, etc.).

6. Compliance & Safety

• Sold and presented for research/educational purposes.
• Clear refund/return and shipping policies.
• Imports: Be cautious with non-U.S. sources; prioritize third-party testing and reliability.

→ Need more info? Check the Peptide Education Center

Educational Only: This checklist is for educational purposes and not medical advice.

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