Manufacturing & Testing

How Our Peptides Are Made

Pebble Aminos research compounds follow a four-step production process:

1. Peptide API sourcing — raw peptide ingredients are sourced internationally (from a qualified partner in China).
2. Incoming testing — peptide ingredients are tested upon arrival to verify identity and suitability before any processing begins.
3. Domestic finishing — formulation, mixing, vial filling, and lyophilization (freeze-drying) take place in the United States.
4. Finished-product testing — final product testing is performed by a U.S.-based laboratory, and results are published as Certificates of Analysis (CoAs).

Synthesis vs. finished-product manufacturing. Peptide synthesis — the chemical assembly of the peptide molecule — takes place at our international manufacturing partner. Pebble Aminos compounds are finished in the United States: the formulation, filling, and lyophilization operations are domestic.

Testing at Every Stage

We test incoming peptide ingredients before use and test every finished product batch through a U.S.-based laboratory. The resulting Certificates of Analysis are published with lot numbers so that researchers can verify documentation before any order.

Review available batch documents in our Quality & Testing section.

What We Do Not Claim

We are careful about our claims because researchers deserve accuracy:

• We do not claim our peptides are synthesized in America. The underlying peptide ingredients are imported.
• We do not invent certifications, laboratory accreditations, purity guarantees, or documentation we have not provided.
• All products are sold exclusively for legitimate laboratory research use — never for human or veterinary use.

Documentation and Verification

For procurement professionals and principal investigators verifying documentation before purchase: browse the product library, review Quality & Testing, or contact our support team for documentation questions.