premium4.5 / 5.0
Peptide Sciences
This profile is informational only and does not constitute endorsement.
Purity
99%+
Testing
Third-party HPLC & MS
Pricing
Premium ($$$)
Shipping
US domestic, cold shipping
Key Notes
One of the most established US vendors. Consistently achieves 99%+ purity on independent testing.
Reported Pros
- • Industry-leading purity standards
- • Batch-specific COAs
- • Professional packaging
- • Consistent quality
Reported Cons
- • Premium pricing
- • Slow customer support response
- • US only
Always verify third-party testing and consult a licensed healthcare professional. Many peptides discussed on this site are not FDA-approved for general use.