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Before starting supplements, its important to review your bloodwork with your physician or consult a doctor on our team

Quality Markers to Verify Certificates of Analysis should show HPLC-MS testing confirming peptide identity and purity

Pick your syringe size, choose the vial quantity (10 mg, 20 mg, or 30 mg), enter how much bacteriostatic water you add, then set your desired dose in mcg or mg

Head-to-Head Comparison Factor Biotech Peptides Peptide Sciences Years Operating ~5 years 10+ years Catalog Size ~50 compounds 100+ compounds Pricing (per vial) $3575 $150180+ Testing Method Claims third-party In-house HPLC/MS COA Availability Inconsistent Available on request Finnrick Listed No No US Shipping Yes Yes International Shipping Limited Yes Payment Methods Card, crypto Card, crypto, wire Community Reputation Moderate / mixed Strong but declining Where Both Vendors Fall Short Despite their differences in pricing and market positioning, Biotech Peptides and Peptide Sciences share several fundamental limitations that researchers should be aware of in 2026: No Finnrick Verification Neither vendor is listed on Finnrick the independent verification platform that has become the gold standard for evaluating peptide supplier quality

Better absorption: B12 shots are much better at getting the vitamin into your body than pills