The Definitive Peptide Research Reference Guide — Compound Review

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Science.bio Alternatives (2026): Best Replacement After Shutdown

Science.bio shut down in January 2026. Compare the best Science.bio alternatives on COA transparency, purity, catalog depth, and pricing — and why Purgo Labs is the top replacement.

Product Quality & Purity

Independent comparison of Purgo Labs and Science Bio on product purity, third-party COA verification, and manufacturing standards.

Pricing & Value

Price-per-milligram comparison, shipping costs, and overall value assessment for Purgo Labs vs Science Bio.

COA Transparency

Certificate of Analysis availability, testing methodology, and third-party lab verification for both vendors.

Customer Service & Reliability

Order fulfillment, customer support quality, and reliability comparison between Purgo Labs and Science Bio.