01 / Purity
Purity begins at the molecule.
Every batch is synthesized in an ISO-certified SPPS lab and reversed-phase HPLC verified above 99% peak area. Residual solvents, TFA salts, and endotoxins all fall within USP <1046> thresholds.
Research-Grade Peptides · Est. United States
Biology,refined.
Research-grade peptides synthesized to 99%+ HPLC-verified purity. Third-party analyzed. Shipped from the United States to qualified research buyers — 21+, laboratory and in-vitro experimental use only.
Lot — 2026.04 / HPLC
40.7128° N / 74.0060° W
- 3rd-Party Tested
- 99%+ HPLC Purity
- Ships From USA
- Discreet Packaging
01/Catalogue
A small roster, rigorously made.
Four references we stock by default. Every batch arrives with a matching Certificate of Analysis keyed to its lot number.
15 aa · pentadecapeptideBPC-157$48 / 5mg vialBody Protection Compound
Gastric peptide fragment widely referenced in in-vitro tissue studies.
43 aa · synthetic fragmentTB-500$72 / 5mg vialThymosin Beta-4 Fragment
Regulatory actin-binding peptide used in vascularization research.
3 aa · Gly-His-Lys · Cu²⁺GHK-Cu$54 / 50mg vialCopper Tripeptide
Copper-binding tripeptide studied in dermal matrix assays.
- 5 aa · pentapeptideIPAMORELIN$68 / 5mg vial
Ghrelin Receptor Analog
Selective GHS-R1a analog used in pituitary cell-culture references.
02/The Science
A quiet insistence on evidence.
02 / Synthesis
Sequenced with intention.
Solid-phase synthesis of each peptide is carried out residue-by-residue against the published sequence. Cleavage, precipitation, and lyophilization happen inside a closed system — the vial you receive was the vial first filled.
03 / Verification
Every lot, twice confirmed.
Mass spectrometry confirms molecular identity; HPLC confirms purity. Both reports are signed by an independent third-party lab and published under the lot number on every order page and in your COA library.
Schematic · synthetic referenceref. 26.04
03/Index
Five tracks. One standard.
Every reference carries the same verification chain, regardless of category.
- 001
Recovery
Tissue-matrix references- BPC-157
- TB-500
- THYMOSIN-β4
- 002
Weight Management
GLP-1 class references- SEMAGLUTIDE
- TIRZEPATIDE
- RETATRUTIDE
- 003
Anti-Aging
Dermal & cellular senescence assays- GHK-Cu
- EPITALON
- SS-31
- 004
Performance
GH secretagogue references- IPAMORELIN
- CJC-1295
- TESAMORELIN
- 005
Cognitive
Nootropic fragment references- SEMAX
- SELANK
- DIHEXA
04/Lab Transparency
The chain from batch to bench.
Four steps, every lot. Nothing leaves the lab without a matching signed report.
- 01
Synthesis
SPPS · Solid-phaseResidue-by-residue synthesis against the published sequence in an ISO-certified lab. Closed-system cleavage and precipitation.
- 02
Mass Confirmation
LC-MS · Molecular IDLiquid-chromatography mass spectrometry confirms the molecular weight matches the target sequence within ±0.01 Da.
- 03
HPLC Purity
RP-HPLC · 99%+ thresholdReversed-phase HPLC measures peak area above 99%. Batches under threshold are discarded, never relabeled.
- 04
Independent COA
Third-party · SignedAn external accredited laboratory issues a Certificate of Analysis under the lot number. The signed PDF publishes on the product page before the vial ships.
05/Field Notes
Word from the bench.
“The COA was on the product page before the vial arrived. That alone puts them ahead of most of the US suppliers I work with.”
“Shipping discretion was flawless. Plain box, no branding, sealed cold pack.”
“Lot-level traceability matters for my reproducibility protocol. Peptidesnow is the first vendor where I can audit every vial I own.”
“HPLC data matched the certificate. Rare enough that I keep buying from them.”
“The COA was on the product page before the vial arrived. That alone puts them ahead of most of the US suppliers I work with.”
“Shipping discretion was flawless. Plain box, no branding, sealed cold pack.”
“Lot-level traceability matters for my reproducibility protocol. Peptidesnow is the first vendor where I can audit every vial I own.”
“HPLC data matched the certificate. Rare enough that I keep buying from them.”
06/Notes
Plain-language questions.
Longer answers and the full compliance dossier live in the support section.
No. Every reference we sell is laboratory and in-vitro experimental use only. They are not sold for human or animal consumption, and no statements on this site have been evaluated by the FDA.
Every product page publishes the Certificate of Analysis as a signed PDF, keyed to the lot number you will receive. You can also search the COA library by lot number directly from the main navigation.
United States only — all 50 states plus DC. Some states are excluded for specific product classes; your cart will surface any restriction before checkout.
Plain outer cartons with no branding. Cold-pack insulation where required by product class, with a tamper-evident inner seal and the COA reference printed on the packing slip.
Yes. First-time visitors must confirm they are 21+ before viewing any product pages. The confirmation is stored for 30 days by cookie and is required at checkout.
Major cards via Stripe, major crypto via NOWPayments (BTC / ETH / USDT / LTC / XMR), and Zelle for qualifying orders. Crypto payments receive an automatic discount at checkout.
Peptidesnow · 2026
Science youcan audit.
Open the shop or request the full catalogue as a PDF — including molecular references and published COA lot numbers.