This website sells research-use-only (RUO) chemical reagents intended solely for
laboratory and scientific research. You must be 21 years of age or older
and a qualified research professional to enter.
✓ I am 21 years of age or older.
✓ I am a licensed researcher or laboratory professional.
✓ I understand all products are for in-vitro research use only.
✓ I will not use these products for human or animal administration.
By entering, you confirm compliance with all applicable local laws and regulations.
🧪 RESEARCH-GRADE PEPTIDES — Third-party tested. COA with every order. Free shipping on orders $200+.
Research Use Only (RUO): All PurelyAminos products are supplied solely for
in-vitro laboratory research. Not for human or animal use. Not FDA approved.
In-Vitro Research Use Only
Research-grade peptides, documented.
Purely Aminos supplies lyophilized peptides and research reagents for in-vitro laboratory use.
Every batch is third-party tested for purity and identity, a Certificate of Analysis is included
with every order, and in-stock items ship in 1–3 business days.
Every lot is analyzed by reverse-phase HPLC with UV detection. Lots that do not meet spec are not released for sale.
≥95%
Purity Floor
100%
COA Included
86
SKUs
HPLC Purity≥95%
MS Identity Confirmed100%
Third-Party Testing
Independent. Unbiased. Documented.
Every batch is tested by an outside analytical laboratory at US-based facilities, and the resulting data is what appears on your Certificate of Analysis rather than a self-reported figure.
✓ ESI-MS Identity
✓ RP-HPLC Purity
✓ TFA-Free
✓ US Lab Tested
★ COA Included
★ Lot Traceability
2
Test Methods
100%
Lots Tested
0
Exceptions
Transparent Sourcing
You know exactly what's in the vial.
Lot-level documentation from our supply partner through to delivery. Lot number, test date, test results ≥95% all documented and available on demand.
100%
Traceable
0
Hidden Fillers
1–3
Day Ship
✓ Lot # on Every Vial
✓ COA on Demand
✓ Acetate Counterion
★ Globally Sourced · Tested in the USA
Research Catalog
Featured Research Peptides
Every product ships with a full Certificate of Analysis. Standard grade ≥95% HPLC purity; high-purity grade ≥99%. For in-vitro research use only.
All products for in-vitro laboratory research use only · Not for human or animal use
Testing & Documentation
How the testing works
What gets tested, how it is measured, and what ships with your order.
📊
Purity by HPLC
Purity is reported as % area, the standard method. Chromatogram data is retained for each lot.
Standard grade ≥95% · high-purity ≥99% →
🔬
Identity Verified by Mass Spec
Every lot confirmed by electrospray ionization mass spectrometry (ESI-MS). Observed molecular weight vs theoretical ≥95% documented on every COA.
Observed vs. theoretical MW on every COA →
📄
COA With Every Order
Not on request. Not "available if asked." A full Certificate of Analysis ships with every single order ≥95% lot number, test date, purity, identity, storage.
Download your COA anytime →
🇺🇸
Sourcing and testing
Globally sourced from vetted international manufacturing partners, with every batch third-party tested for purity and safety. Analytical testing is performed at US-based laboratories.
Lot-level documentation available on request →
Research Catalog
Browse the full catalog
Lyophilized peptides and research reagents for in-vitro laboratory use. Certificate of Analysis with every order. In-stock items ship in 1–3 business days.
