Research-grade peptide compounds

Feel like the healthiest version of you.

Helix catalogs the amino acid sequences driving today's regenerative and metabolic research — with full documentation on origin, purity, and mechanism for every compound.

BPC-157 · GEPPPGKPADDAGLV Ipamorelin · Aib-His-D-2Nal-D-Phe-Lys-NH2 Epithalon · Ala-Glu-Asp-Gly Semax · Met-Glu-His-Phe-Pro-Gly-Pro

Small chains, specific effects.

Peptides are short chains of amino acids — the same building blocks the body already uses to signal cells. That structural simplicity is exactly what makes them a distinct category of research compound.

01

Receptor-level specificity

Because peptides mimic the body's own signaling sequences, they tend to act on narrow, well-defined receptor targets rather than broad systemic pathways — which is why researchers favor them for isolating a single mechanism of action.

02

Bioidentical structure

Many peptides are structurally identical or near-identical to sequences the body produces endogenously, so research on them builds directly on existing physiology rather than introducing a synthetic novel molecule.

03

Rapid, active field

Peptide science has expanded quickly over the past decade, with GLP-1 metabolic research and regenerative-medicine peptides now among the most cited categories in the compound literature.

04

Modular research design

Peptides are commonly studied in stacks — combinations chosen to target complementary pathways (e.g., a GH secretagogue paired with a repair peptide) — giving researchers a flexible toolkit.

05

Short half-life, fast feedback

Most peptides clear the system relatively quickly compared to small-molecule drugs, which shortens the research feedback loop between administration and observed effect.

06

Deep documentation

Because so many peptides originate from published academic research, most compounds arrive with an existing body of literature on mechanism, receptor binding, and study design.

A fit couple in their late forties training together with dumbbells in a gym
Longevity research, built for real life

Built around people staying strong at every stage.

Helix exists for the researchers and practitioners studying how regenerative and metabolic peptides support people well into midlife and beyond — not just performance in a lab, but strength, recovery, and vitality that hold up over decades.

That's the population most of this literature is written for: active adults balancing training, recovery, and longevity, and the clinicians and researchers working to understand how these compounds can support them.

16+Compounds documented
6Research categories
100%Third-party tested

Major peptides, by research category.

An overview of the most widely studied peptides on the market today. Full batch documentation and COAs will accompany every listing at launch.

Growth Hormone Secretagogues Healing & Recovery Metabolic Cognitive Longevity Immune
CJC-1295GH Secretagogue
GHRH analog · DAC / no-DAC variants

A long-acting growth hormone-releasing hormone analog, studied for its ability to elevate baseline GH and IGF-1 levels over an extended window compared to native GHRH.

IpamorelinGH Secretagogue
Selective GH secretagogue / ghrelin agonist

A pentapeptide studied for stimulating GH release through the ghrelin receptor, valued in research for producing a GH pulse with minimal effect on cortisol or appetite hormones.

SermorelinGH Secretagogue
GHRH(1-29) fragment

A truncated analog of growth hormone-releasing hormone, one of the earliest GH secretagogues studied and often used as a research baseline against newer analogs.

TesamorelinGH Secretagogue
Stabilized GHRH analog

A modified GHRH analog studied specifically in the context of visceral fat metabolism and lipid research.

BPC-157Healing & Recovery
Body Protection Compound-157

A synthetic peptide fragment derived from a gastric protective protein, studied extensively in animal models for its role in tissue, tendon, and gut-lining repair pathways.

TB-500Healing & Recovery
Thymosin Beta-4 fragment

A synthetic fragment of the naturally occurring protein Thymosin Beta-4, studied for its role in actin regulation, cell migration, and wound-healing research.

SemaglutideMetabolic
GLP-1 receptor agonist

A long-acting GLP-1 analog, among the most-studied metabolic peptides today for its effect on insulin secretion, gastric emptying, and appetite regulation research.

TirzepatideMetabolic
Dual GIP/GLP-1 agonist

A dual-incretin agonist studied for combining GIP and GLP-1 receptor activity, an active area of comparative metabolic research against single-agonist peptides.

AOD-9604Metabolic
HGH fragment 176-191

A modified fragment of human growth hormone isolated for the portion of the molecule associated with fat metabolism, studied independently of GH's growth-promoting effects.

SemaxCognitive
ACTH(4-10) analog

A synthetic peptide derived from a fragment of adrenocorticotropic hormone, studied in Russian clinical literature for neuroprotective and cognitive research applications.

SelankCognitive
Synthetic tuftsin analog

A heptapeptide analog of the immunomodulatory peptide tuftsin, studied for anxiolytic and cognitive-modulation effects in preclinical research.

EpithalonLongevity
Synthetic tetrapeptide

A four amino-acid peptide studied for its proposed role in telomerase activation and circadian regulation, a frequently cited compound in longevity research literature.

GHK-CuLongevity
Copper peptide complex

A naturally occurring copper-binding tripeptide studied for its signaling role in collagen synthesis, wound repair, and skin-focused research applications.

Thymosin Alpha-1Immune
Thymic-derived peptide

A naturally occurring thymic peptide studied for its role in T-cell modulation and immune-response regulation.

PT-141Neuro-Endocrine
Bremelanotide, melanocortin agonist

A melanocortin receptor agonist derived from Melanotan II research, studied for its central nervous system effects on sexual arousal pathways.

MOTS-cMetabolic
Mitochondrial-derived peptide

A peptide encoded within mitochondrial DNA, studied for its role in metabolic homeostasis and exercise-adaptation research.

Every batch, documented before it ships.

Helix's sourcing standard is built around third-party verification, not marketing copy.

1

Third-party HPLC testing

Every compound is verified by an independent lab for purity before it's listed.

2

Certificate of Analysis on file

COAs will be published per batch and downloadable at checkout once the shop is live.

3

Cold-chain fulfillment

Temperature-controlled packaging from lab to doorstep for compound stability.

4

Sequence-verified sourcing

Manufacturer sequence data is cross-checked against published reference structures.

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