Key Requirements:
Purity & Testing:

Certificate of Analysis (COA) confirming ≥99% purity (HPLC tested).

Documentation for heavy metals (lead, arsenic), microbial counts, and residual solvents.

Certifications:

If available, NSF certification or third-party testing for banned substances (e.g., WADA compliance).

Packaging:

Bulk packaging in sealed, food-grade containers to prevent moisture absorption.

Lead Time & Pricing:

Estimated timeline for production and shipping to [Your Location].

FOB/CIF pricing for 100 kg, including bulk discounts.

Samples:

Availability of a 1 kg sample for quality verification prior to full order.

Additional Questions:
Do you currently supply L-Citrulline to U.S./EU supplement brands?

What is your production capacity for recurring monthly orders?