Lot-matched · HPLC + MS verified
Research-grade peptides with proof in every vial.
110+ lyophilized compounds released at ≥ 98% purity, each lot independently confirmed for identity and shipped from US inventory.
- 113+
- catalogued presentations
- ≥98%
- RP-HPLC release spec
- 2×
- methods per lot (HPLC + MS)
Lot-matched COAsCertificate per fill, not per product
HPLC + mass specPurity and identity, both reported
US domestic shippingDiscreet, rigid-insert packaging
Private checkoutZelle, Cash App, Venmo, crypto
Browse by discipline
Full catalog →Research areas
Weight Management Research
Incretin, amylin & lipolytic sequences
24 items →Recovery Research
Tissue repair & barrier biology
15 items →Growth Hormone Research
GHRH analogs & secretagogues
22 items →Longevity & Cellular Research
Mitochondrial & bioregulator compounds
27 items →Specialty Research
Melanocortin, neuro & senolytic
12 items →Skin & Hair Research
Matrix & pigmentation pathways
6 items →Research Stacks
Lot-matched multi-compound kits
7 items →Most ordered
See all →Featured compounds
Release gate
How a lot earns its label
Nothing is listed as available until all four steps pass.
- 01
Synthesis & purification
Solid-phase synthesis, then preparative HPLC to isolate the target sequence.
- 02
Purity by RP-HPLC
Main-peak area must reach at least 98% before the lot moves on.
- 03
Identity by mass spec
An independent lab confirms observed mass against theoretical mass.
- 04
Fill, seal & trace
Lyophilized into Type I glass under inert gas, lot code printed per fill.
Matched-lot kits
All stacks →Research stacks
Why documentation matters
A purity number is only half an answer.
HPLC tells you how clean the material is. It can't tell you whether the main peak is the molecule you ordered. That's why every Prime Lab lot carries a second, independent mass-spec identity check — and why the certificate you read belongs to the exact lot you receive.
Our quality process- Lot-specific certificate, never a representative one
- Testing lab named and independent of the seller
- Purity and identity, by separate methods
- Net peptide content reported for accurate molarity
- Raw chromatograms available on request
Research library
Library →Reference reading
Documentation
Reading a certificate of analysis, field by field
A practical walk through lot code, purity, identity and net peptide content — and what each figure does and doesn't prove.
6 min read HandlingReconstitution basics for laboratory work
Diluent choice, technique and aliquoting — the small habits that remove most run-to-run variation.
4 min read Compound overviewsBPC-157 and TB-500: two different mechanisms
They're often grouped together, but the sequences, masses and studied mechanisms are entirely different.
5 min read