US Research Peptides, Verified Before They Ship
Helix Bio Chem supplies research-use-only peptides for laboratory research, not for human or veterinary use. Every order ships with its batch-specific certificate of analysis.
10K+
Research orders fulfilled in the USA
COA
Certificate of analysis included with every batch
3rd Party
Independently tested for purity and identity
Our Best Sellers.
A rotating selection of the most-requested compounds in the catalog, each shipped with a batch-specific certificate of analysis.
GLP-1TRZ Spray
GLP-1 & Metabolic
GLP-1TRZ Spray is a research-use material supplied by Helix Bio as a prepared spray-format solution rather than as a lyophilised solid. The compound it contains, its concentration and its supporting analytical data are recorded in the product documentation and the lot-specific Certificate of Analysis, which are the authoritative record for any given lot. Helix Bio supplies research materials for qualified laboratory and scientific applications. GLP-1TRZ Spray is offered strictly for research use. It is not intended for human or veterinary consumption, ingestion, injection, inhalation, self-administration, cosmetic use, or the diagnosis, treatment, cure or prevention of any disease or condition. The word "Spray" describes the physical presentation of the material and does not indicate a route of administration.
KLOW Blend Spray
Healing & Recovery
Four molecular entities share one container here, and the smallest of them is the reason the product has its own name. KLOW Blend Spray is Helix Bio's prepared-solution preparation of the KLOW combination — GHK-Cu, a copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine; BPC-157, a synthetic pentadecapeptide; TB-500, a thymosin β4-related material; and KPV, the three-residue C-terminal fragment of α-melanocyte-stimulating hormone. Those first three are the GLOW combination. KPV is the addition, and it is the only compositional difference between the two. Helix Bio supplies this material for qualified laboratory and scientific research. It is not intended for human or veterinary consumption, administration by any route, diagnosis, treatment, or prevention of disease. One thing is worth establishing before anything else on this page: KLOW is a product designation rather than a characterised substance, and published specifications for blends carrying the name do not agree with each other. What a given container holds is settled by its lot documentation, not by its label.
Semax + Selank Blend
Cognitive & Nootropic
Semax and Selank were built to the same template and are not the same molecule. Each is a synthetic heptapeptide made by taking a short biologically interesting sequence — the ACTH(4-7) fragment in one case, the endogenous tetrapeptide tuftsin in the other — and extending it at the C-terminus with Pro-Gly-Pro. Helix Bio supplies the two together as a single vial-format research material for qualified laboratory work only, not for human or veterinary use. What that material is not is a third compound. This blend contains two separate molecular entities that retain their own sequences, their own molecular weights and their own separate bodies of published research. Nothing in that literature examines the two administered together, and the page below keeps component evidence, combination evidence and Helix product data in three clearly separated layers.
H Frag
GLP-1 & Metabolic
One oxygen atom is the entire chemical difference between this peptide and the compound it is most often confused with. H Frag is Helix Bio’s designation for hGH Fragment 176-191, the sixteen-residue C-terminal segment of human growth hormone, sequence FLRIVQCRSVEGSCGF, closed by the native Cys182–Cys189 disulfide the parent hormone carries in the same position. Swap the opening phenylalanine for a tyrosine and you have AOD-9604 — a different molecule, with a different registry number and a different evidence base. Supplied here in vial format as a research material for qualified laboratory use. Not intended for human or veterinary consumption, or for the diagnosis, treatment, cure or prevention of any disease.
Dihexa
Cognitive & Nootropic
Dihexa is a peptidomimetic small molecule — C₂₇H₄₄N₄O₅, 504.67 g/mol, CAS 1401708-83-5 — built by capping a tyrosine–isoleucine core with a hexanoyl group at one end and a 6-aminohexanamide at the other. It was developed at Washington State University from angiotensin IV, and the caps were the whole point: they remove the bonds proteases cleave and raise lipophilicity far enough that the compound no longer dissolves in water. Helix Bio supplies it in solid form, which leaves the choice of solvent with the researcher. Research and laboratory use only; not for human or veterinary use, ingestion, injection, or administration by any route.
Lipo-C Spray
Nasal Sprays
No two suppliers agree on what Lipo-C contains. The name belongs to compounding-pharmacy practice rather than to chemistry, and formulations sold under it range from four components to eight — with the letter C used variously for choline, for carnitine, and for ascorbic acid depending on who prepared the material. Helix Bio supplies Lipo-C Spray as a prepared multi-component solution for qualified laboratory work. The composition that governs an experiment is the one on the documentation for the lot in hand, not the one a search result attributes to the name. Research and laboratory use only; not intended for human or veterinary consumption, or for administration by any route.
Kisspeptin Spray
Nasal Sprays
Kisspeptin is not a single peptide. The name covers a group of related fragments produced by proteolytic processing of a precursor encoded by the KISS1 gene — most commonly described as kisspeptin-54, kisspeptin-14, kisspeptin-13 and kisspeptin-10 — all of which share the same C-terminal decapeptide and all of which act at the KISS1R receptor, also known as GPR54. Kisspeptin Spray is Helix Bio’s spray-format preparation supplied for laboratory investigation of that signalling system. Because the forms differ in length, mass and behaviour, the specific fragment supplied in any given lot is a matter for the accompanying documentation rather than the product name. Helix Bio provides research materials for qualified scientific work only. This product is not intended for human or veterinary consumption, self-administration, diagnosis, treatment, or the prevention of any disease.
BPC-157 / TB-500 Blend Spray
Nasal Sprays
Two peptides, two molecular identities, one container. BPC-157 / TB-500 Blend Spray pairs BPC-157 — a synthetic 15-residue peptide with the sequence GEPPPGKPADDAGLV — with material supplied under the name TB-500, which the analytical literature associates with an N-terminal-acetylated fragment spanning the actin-binding region of thymosin beta-4. The two components differ substantially in size, and that difference shapes how the blend should be characterised, documented and interpreted in an experimental record. Helix Bio supplies this preparation as a spray-format research material for qualified laboratory and scientific work. It is not intended for human or veterinary consumption, diagnosis, treatment, or prevention of disease, and it is not a treatment product of any kind.
Vitality Collection.
A curated line built around longevity, recovery, and everyday research support, featuring some of our most-requested research compounds.
10,000+
Vials Fulfilled
Vials fulfilled to research labs and institutions across the USA.
99%+
Guaranteed Purity
Each batch is HPLC-tested for purity, and the result is published on that batch's certificate of analysis.
10+
Years Experience
A defined sourcing, testing, and documentation process applied to every batch.
24/7
Dedicated Support
Our scientific support team is always available to answer your technical questions.
The Helix Bio Chem Standard
ENGINEERED FOR
ABSOLUTE PRECISION.
USA-Manufactured. Third-Party Verified.
Every compound in the Helix Bio Chem catalog is synthesized to a documented purity standard and verified before it's listed — not estimated, and not left to a marketing claim.
99%+ Verified Purity
Each batch is HPLC-tested for purity, and the result is published on that batch's certificate of analysis.
Independent HPLC Testing
Freeze-Dried for Stability
Compounds are vacuum-lyophilized to protect molecular structure over time, so integrity holds up through shipping, handling, and long-term cold storage.
Stability Verified Per Batch
Confirmed Molecular Identity
Mass spectrometry confirms each compound's molecular weight and identity before listing. Vial fill weight is documented on the product's certificate of analysis.
Mass Spectrometry Identity
RESEARCH
CATEGORIES.
Browse the catalog by research application — each category maps to a specific set of compounds with shared research use cases.
Longevity & Anti-Aging
Compounds selected for a specific research application, each independently tested and documented.
Cognitive & Nootropic
Compounds selected for a specific research application, each independently tested and documented.
Healing & Recovery
Compounds selected for a specific research application, each independently tested and documented.
Growth Hormone Secretagogue
Compounds selected for a specific research application, each independently tested and documented.
GLP-1 & Metabolic
Compounds selected for a specific research application, each independently tested and documented.
Sexual & Hormonal
Compounds selected for a specific research application, each independently tested and documented.
Cosmetic & Skin
Compounds selected for a specific research application, each independently tested and documented.
Nasal Sprays
Compounds selected for a specific research application, each independently tested and documented.
What Sets
Us Apart.
Verified Purity Standards
Every batch is held to a documented purity threshold before it is listed, rather than an unverified marketing claim.
Learn more about Verified Purity Standards
Mass Spectrometry Validation
Molecular identity is confirmed by mass spectrometry alongside HPLC purity testing, not by either method alone.
Learn more about Mass Spectrometry Validation
Comprehensive Documentation
A batch-specific certificate of analysis is available for every product, so purity and identity can be checked independently.
Learn more about Comprehensive Documentation
Research-Only Positioning
Helix Bio Chem markets exclusively to the research community, with RUO and not-for-human-consumption labeling kept visible, not buried in fine print.
Learn more about Research-Only Positioning
Privacy & Security Notice
For your protection, please redact (black out) sensitive information like your SSN. Documents are securely encrypted for review and permanently destroyed from our servers immediately upon approval.
30% OFF
FOR OUR HEROES
Active-duty military, veterans, and first responders can request 30% off a research peptide order as a standing thank-you from the Helix Bio Chem team. Eligibility is verified at checkout.
Step 1.
Sourcing & Synthesis — Where purity starts
Step 2.
Validating identity and mass with 3rd-Party Testing
Step 3.
Securing compounds via Cold-Chain Packaging
Step 4.
Fast, tracked shipping straight to your lab
Transparency
You Can Trust.
Latest Peptide Research Resources
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Bacteriostatic water explained: what the benzyl alcohol preservative does, how it differs from sterile water and saline, and where the 28-day opened-vial limit actually comes from.
FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED
What does "Research Use Only" (RUO) mean for these peptides?
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Research-use-only peptides