Best seller
Repair & Regeneration
BPC-157
Pentadecapeptide BPC-157, the most-cited peptide in tissue-repair literature.
≥99.4%5.0(4)
from$42.00
Every batch third-party HPLC & MS tested
Research peptides
you can call verifiedtraceablereproducibledocumented
Research-grade peptides, third-party verified. We publish the chromatogram, the mass spectrum and the water content for every batch — before you order, not after you ask.
We publish the chromatogram. Reverse-phase HPLC at 214 nm — the purity trace, not just a number.
We publish the mass spectrum. Electrospray mass-spec confirms the sequence is exactly what the label says.
We publish the water content. Because reconstitution maths only works when you know what's actually in the vial.
Certificate of analysis
BATCH · HLX-24-0417
HPLC purity≥ 99%
IdentityESI-MS
Water contentKarl Fischer
Independent HPLCESI mass specBatch COA publishedKarl Fischer water contentCold-chain packedPlain outer packagingResearch use only
Most requested
Reference compounds researchers reorder
Each one shipped with an independent certificate of analysis for its exact batch.
Research areas
Browse by what you're studying
Seven catalogues, organised by the research question rather than by chemistry class.
How we work
Four steps between synthesis and your bench
None of them optional, none of them skipped when a batch is running late.
1
Synthesised to spec
Solid-phase synthesis with RP-HPLC purification. We specify ≥99% and reject batches that miss it.
2
Independently assayed
Every batch goes to a third-party lab for HPLC purity, ESI-MS identity and Karl Fischer water content. We never self-certify.
3
Published before sale
The chromatogram and spectrum go on the product page. You read the data before you decide, not after you ask.
4
Shipped and traceable
Cold-chain packed where needed, plain outer packaging, and the batch COA in the box. Retained samples kept for every lot.
Just added
Newest to the catalogue
From the bench
Judged on chromatograms, not marketing
Our customers re-assay what we send them. That is exactly what we want them to do — it is the only review that means anything in this category.
Verify a batch yourself“Batch-to-batch consistency is the whole game for us, and Helix is the first supplier whose chromatograms I can overlay across four orders and not spot the difference.”
Research library
Methodology, chemistry and handling
Written for people who will actually run the assay. No dosing advice, no health claims — just the bench detail that changes results.
Start with one vial and check our work
Order a single vial, send it to whichever lab you trust, and compare their trace against ours. If it does not match, we refund the order and pull the batch.