Purity you can verify.
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Complete Research Catalog
High-purity peptides and lyophilized compounds, third-party tested and shipped same day from the USA.
VIEW ALL CATALOG →Find your compound
Not sure where to start? The full catalog — each compound listed under the name it is catalogued by in the literature.
The molecules, on the record
Structural and analytical reference data for every compound we stock.
- Formula
- C221H342N46O68
- Average MW (Da)
- 4731.33
- CAS
- 2381089-83-2
- Residues
- 39
- Class
- —
GLP-2 TZ
- Formula
- C225H348N48O68
- Average MW (Da)
- 4813.45
- CAS
- 2023788-19-2
- Residues
- 39
- Class
- —
GLP-1 SM
- Formula
- C187H291N45O59
- Average MW (Da)
- 4113.6
- CAS
- 910463-68-2
- Residues
- 31
- Class
- —
MOTS-c
- Formula
- C101H152N28O22S2
- Average MW (Da)
- 2174.6
- CAS
- 1627580-64-6
- Residues
- 16
- Class
- Mitochondrial Peptides
SS-31
- Formula
- C32H49N9O5
- Average MW (Da)
- 639.8
- CAS
- 736992-21-5
- Residues
- 4
- Class
- Mitochondrial Peptides
5-Amino-1MQ
- Formula
- C10H11ClN2
- Average MW (Da)
- 194.66
- CAS
- —
- Residues
- N/A
- Class
- Lab Compounds
AOD-9604
- Formula
- C78H123N23O23S2
- Average MW (Da)
- 1815.1
- CAS
- 221231-10-3
- Residues
- 16
- Class
- Peptide Fragments & Analogues
NAD+
- Formula
- C21H27N7O14P2
- Average MW (Da)
- 663.4
- CAS
- 53-84-9
- Residues
- N/A
- Class
- Mitochondrial Peptides
- Formula
- C14H22CuN6O4
- Average MW (Da)
- 401.9
- CAS
- 89030-95-5
- Residues
- 3
- Class
- Peptide Fragments & Analogues
GLOW (blend)
No single molecular weight — see components
- Formula
- C14H22CuN6O4
- Average MW (Da)
- 401.9
- CAS
- 89030-95-5
- Residues
- 3
- Class
- Peptide Fragments & Analogues
BPC-157
- Formula
- C62H98N16O22
- Average MW (Da)
- 1419.5
- CAS
- 137525-51-0
- Residues
- 15
- Class
- BPC-157 & TB-500
TB-500
- Formula
- —
- Average MW (Da)
- —
- CAS
- —
- Residues
- —
- Class
- BPC-157 & TB-500
KLOW (blend)
No single molecular weight — see components
- Formula
- C14H22CuN6O4
- Average MW (Da)
- 401.9
- CAS
- 89030-95-5
- Residues
- 3
- Class
- Peptide Fragments & Analogues
BPC-157
- Formula
- C62H98N16O22
- Average MW (Da)
- 1419.5
- CAS
- 137525-51-0
- Residues
- 15
- Class
- BPC-157 & TB-500
TB-500
- Formula
- —
- Average MW (Da)
- —
- CAS
- —
- Residues
- —
- Class
- BPC-157 & TB-500
KPV
- Formula
- C16H30N4O4
- Average MW (Da)
- 342.43
- CAS
- 67727-97-3
- Residues
- 3
- Class
- Melanocortin Peptides
Melanotan I
- Formula
- C78H111N21O19
- Average MW (Da)
- 1646.8
- CAS
- 75921-69-6
- Residues
- 13
- Class
- Melanocortin Peptides
Melanotan II
- Formula
- C50H69N15O9
- Average MW (Da)
- 1024.2
- CAS
- 121062-08-6
- Residues
- 7
- Class
- Melanocortin Peptides
BPC-157
- Formula
- C62H98N16O22
- Average MW (Da)
- 1419.5
- CAS
- 137525-51-0
- Residues
- 15
- Class
- BPC-157 & TB-500
TB-500
- Formula
- —
- Average MW (Da)
- —
- CAS
- —
- Residues
- —
- Class
- BPC-157 & TB-500
Wolverine (blend)
No single molecular weight — see components
BPC-157
- Formula
- C62H98N16O22
- Average MW (Da)
- 1419.5
- CAS
- 137525-51-0
- Residues
- 15
- Class
- BPC-157 & TB-500
TB-500
- Formula
- —
- Average MW (Da)
- —
- CAS
- —
- Residues
- —
- Class
- BPC-157 & TB-500
KPV
- Formula
- C16H30N4O4
- Average MW (Da)
- 342.43
- CAS
- 67727-97-3
- Residues
- 3
- Class
- Melanocortin Peptides
ARA-290
- Formula
- C51H84N16O21
- Average MW (Da)
- 1257.3
- CAS
- 1208243-50-8
- Residues
- 11
- Class
- Peptide Fragments & Analogues
Ipamorelin
- Formula
- C38H49N9O5
- Average MW (Da)
- 711.9
- CAS
- 170851-70-4
- Residues
- 5
- Class
- GHRH & GHS-R Peptides
CJC-1295 + Ipamorelin (blend)
No single molecular weight — see components
CJC-1295 (no DAC)
- Formula
- C152H252N44O42
- Average MW (Da)
- 3367.9
- CAS
- —
- Residues
- 29
- Class
- GHRH & GHS-R Peptides
Ipamorelin
- Formula
- C38H49N9O5
- Average MW (Da)
- 711.9
- CAS
- 170851-70-4
- Residues
- 5
- Class
- GHRH & GHS-R Peptides
- Formula
- C221H366N72O67S
- Average MW (Da)
- 5135.76
- CAS
- 218949-48-5
- Residues
- 44
- Class
- GHRH & GHS-R Peptides
IGF-1 LR3
- Formula
- C400H625N111O115S9
- Average MW (Da)
- 9117.5
- CAS
- 946870-92-4
- Residues
- 83
- Class
- Peptide Fragments & Analogues
Semax
- Formula
- C37H51N9O10S
- Average MW (Da)
- 813.9
- CAS
- 80714-61-0
- Residues
- 7
- Class
- Peptide Fragments & Analogues
Selank
- Formula
- C33H57N11O9
- Average MW (Da)
- 751.9
- CAS
- 129954-34-3
- Residues
- 7
- Class
- Peptide Fragments & Analogues
DSIP
- Formula
- C35H48N10O15
- Average MW (Da)
- 848.8
- CAS
- 62568-57-4
- Residues
- 9
- Class
- Peptide Fragments & Analogues
PT-141 (Bremelanotide)
- Formula
- C50H68N14O10
- Average MW (Da)
- 1025.2
- CAS
- 189691-06-3
- Residues
- 7
- Class
- Melanocortin Peptides
Glutathione
- Formula
- C10H17N3O6S
- Average MW (Da)
- 307.33
- CAS
- 70-18-8
- Residues
- 3
- Class
- Lab Compounds
Four stages
before it ships
Every stage is documented, and Certificates of Analysis are published on product pages as testing is completed — not a generic specification sheet.
Synthesis
Solid-phase, to a fixed protocol.
High-purity reagents on a documented sequence, so lot-to-lot behaviour stays consistent rather than varying with whichever batch arrived that month.
Analytical testing
Independent lab, per lot.
HPLC and mass spectrometry run by a third party. As Certificates of Analysis are published, each one reports the measured purity for that specific lot — not a house average carried over from an earlier batch.
Packaging
Sealed, crimped, labelled.
Lyophilized powder under a flip-off cap and tamper-evident collar, labelled with compound, mass and research-use statement before it is boxed.
Dispatch
Same day, before 3 PM ET.
Orders in before the afternoon cutoff, Monday to Saturday, leave the same day by UPS 2nd Day Air or Overnight, with tracking issued on despatch.
What ships, and how
The four things researchers check before a first order. Anything else is in the full FAQ.
Over 99%, measured by someone else.
Independently analysed. Certificates are lot-specific.
The figure is not self-reported — an outside laboratory performs the analysis, and Certificates of Analysis are published on product pages as testing is completed.
Every catalog product is a peptide, tested and certified the same way.
Tested and shipped in the USA.
Domestic testing and fulfilment.
Stock is held here rather than drop-shipped from overseas, which is the reason an order placed before the cutoff can leave the same day.
Held in inventory, not ordered in after you buy.
No cold chain required.
Lyophilized powder is stable at ambient temperature in transit.
No insulated packaging or ice packs are needed to move it. Storage once it reaches you follows your own facility protocols.
We cannot provide laboratory-handling guidance. All products arrive as lyophilized powder.
Qualified researchers only.
Institutional email required at checkout.
The address must be on a domain matching the organisation named on the order. Every compound listed is for in vitro laboratory research use — not for human or veterinary use.
Two vials are 5% off; on three, the third is free. The cart total already reflects it.
Quality you can verify,
not just trust.
Products are independently tested. We don't ask you to take our word for it — Certificates of Analysis are published on product pages as testing is completed. About HEEZ Research
The methods behind the number
A purity percentage is only as good as the instruments behind it. HEEZ documentation is built on two orthogonal analytical methods, run by an accredited independent laboratory.
HPLC — Purity
High-performance liquid chromatography separates a sample into its components and quantifies each one. The main peak is the peptide; everything else is measured and reported. The purity figure on a Certificate of Analysis is the area of that main peak — measured, not assumed.
Mass Spectrometry — Identity
Mass spectrometry confirms the molecular weight of the compound matches the expected sequence. Purity says how much; identity says of what. A certificate reports both, because either number alone is an incomplete answer.
Certificates of Analysis are published on product pages as testing is completed.
Anatomy of a Certificate of Analysis
Sample identity
Compound name, lot reference, and the laboratory's job number.
Chromatogram
Each component of the sample separated into peaks; the dominant peak is the peptide itself.
Purity
The main peak's share of total peak area, reported as a percentage.
Identity confirmation
Measured mass checked against the expected molecular weight of the sequence.
Example HEEZ laboratory documentation (GLP-3 RT) — shown to illustrate how a report is read, not as the certificate for any current batch.
Terms of the trade
Peptide bond
The amide linkage joining amino acids into a chain.
Lyophilization
Freeze-drying; removes water so a peptide stores as a stable powder.
Chromatogram
The output of an HPLC run: components separated into measurable peaks.
m/z
Mass-to-charge ratio, the axis a mass spectrometer reads identity from.
Net peptide content
The fraction of vial mass that is peptide, excluding counterions and residual water.
EC50
The concentration producing half of a compound's maximal effect in an assay.
GPCR
G-protein-coupled receptor; the receptor family most catalog compounds act on in published assays.
Sequence
The ordered list of amino-acid residues that defines a peptide.
Common questions
Every peptide we supply is over 99% pure. Products are independently tested by an accredited third-party laboratory using HPLC and mass spectrometry, and Certificates of Analysis are published on product pages as testing is completed.
Every product we supply is strictly for in vitro laboratory research. Our products are not drugs, foods, supplements, or cosmetics, are not FDA-approved, and are not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary use of any kind.
Qualified researchers only. Checkout requires an institutional email matching your stated organization, and everything we supply is for in vitro laboratory research — not for human or veterinary use.
Orders ship via UPS 2nd Day Air or UPS Overnight, in discreet packaging. Orders placed before 3 PM ET Monday–Friday (1 PM ET Saturday) go out the same day; nothing ships on Sundays.
Certificates of Analysis are published directly on product pages as testing is completed — review the report before you order. Example HEEZ laboratory documentation is shown in each product's gallery.