The Signal Library
A researcher’s reference for the compounds we carry — mechanism of action, published findings, and handling notes, sourced directly from peer-reviewed literature.
BPC-157
Healing & Recovery
A gastric-derived pentadecapeptide studied for its role in tissue-repair signaling across tendon, muscle, and GI models.
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BPC-157 research
TB-500
Healing & Recovery
A synthetic fragment of Thymosin Beta-4, researched for its actin-binding role in cell migration and wound-repair models.
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TB-500 research
Thymosin Alpha-1
Healing & Recovery
A thymic peptide studied for its modulation of T-cell function and innate immune signaling.
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Thymosin Alpha-1 research
DSIP
Healing & Recovery
Delta sleep-inducing peptide, studied for its association with slow-wave sleep architecture and stress-axis modulation.
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DSIP research
CJC-1295 / Ipamorelin
Longevity & Cognitive
A GHRH analog paired with a selective ghrelin-receptor agonist, studied together for pulsatile growth-hormone signaling.
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CJC-1295 / Ipamorelin research
Semax
Longevity & Cognitive
A heptapeptide derived from ACTH(4-10), researched in the neuropharmacology literature for BDNF and cognitive-signaling pathways.
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Semax research
Selank
Longevity & Cognitive
A synthetic analog of tuftsin, studied for anxiolytic-like effects and immune-peptide activity in animal models.
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Selank research
MK-677
Longevity & Cognitive
An orally active ghrelin-receptor agonist studied for sustained growth-hormone and IGF-1 elevation.
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MK-677 research
NAD+
Longevity & Cognitive
A central coenzyme in cellular energy metabolism, studied for its role in sirtuin activation and age-related NAD+ decline.
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NAD+ research
Methylene Blue
Longevity & Cognitive
A redox-active compound studied in mitochondrial electron-transport and neuroprotection research.
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Methylene Blue research
Epitalon
Bioregulators
A synthetic tetrapeptide studied by gerontology researchers for telomerase activity and pineal gland signaling.
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Epitalon research
GHK-Cu
Aesthetics & Skin
A copper-binding tripeptide extensively studied for extracellular matrix remodeling and collagen-signaling pathways.
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GHK-Cu research
Tesamorelin
Weight & Metabolic
A stabilized GHRH analog — among the most clinically studied compounds in this category — researched for visceral fat and GH-axis signaling.
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Tesamorelin research
5-Amino-1MQ
Weight & Metabolic
A small-molecule NNMT inhibitor studied for its role in cellular NAD+/SAM metabolism and adipocyte signaling.
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5-Amino-1MQ research
AOD-9604
Weight & Metabolic
A modified fragment of human growth hormone (hGH 176-191), studied for lipolytic signaling independent of GH-receptor activation.
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AOD-9604 research
LL-37
Healing & Recovery
The only human cathelicidin antimicrobial peptide, studied for broad-spectrum antimicrobial and wound-healing signaling.
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LL-37 research
ARA-290
Healing & Recovery
An erythropoietin-derived peptide studied for tissue-protective signaling independent of red-blood-cell production.
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ARA-290 research
KPV
Healing & Recovery
A tripeptide fragment of alpha-MSH, studied for anti-inflammatory signaling independent of pigmentation effects.
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KPV research
IGF-LR3
Healing & Recovery
A modified insulin-like growth factor 1 analog engineered for extended activity in tissue-growth research.
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IGF-LR3 research
Ipamorelin
Longevity & Cognitive
A selective growth-hormone secretagogue studied for its clean pulsatile GH-release profile.
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Ipamorelin research
Cerebrolysin
Longevity & Cognitive
A peptide-fraction preparation derived from porcine brain proteins, studied for neurotrophic and neuroprotective signaling.
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Cerebrolysin research
Dihexa
Longevity & Cognitive
An angiotensin IV-derived compound studied for neurogenesis and synaptic-signaling research.
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Dihexa research
Glutathione
Longevity & Cognitive
The body’s master antioxidant — a tripeptide studied for its role in oxidative-stress defense and cellular detoxification.
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Glutathione research
Kisspeptin
Longevity & Cognitive
A naturally occurring hormone peptide that sits at the top of the reproductive hormonal cascade.
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Kisspeptin research
SS-31
Longevity & Cognitive
A mitochondria-targeted peptide studied for cardiolipin stabilization and mitochondrial function.
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SS-31 research
Klotho
Longevity & Cognitive
An anti-aging protein studied for its role in regulating aging-related signaling pathways.
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Klotho research
FOXO4-DRI
Longevity & Cognitive
A designed peptide studied for its ability to selectively induce apoptosis in senescent cells.
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FOXO4-DRI research
Vanguard
Longevity & Cognitive
A Stack Science research formulation for laboratory use.
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Vanguard research
Cartalax
Bioregulators
A synthetic peptide bioregulator studied for cartilage and connective-tissue signaling.
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Cartalax research
Pinealon
Bioregulators
A synthetic tripeptide bioregulator studied for pineal gland and central-nervous-system signaling.
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Pinealon research
Bronchogen
Bioregulators
A synthetic peptide bioregulator studied for bronchial and respiratory-tissue signaling.
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Bronchogen research
Cardiogen
Bioregulators
A synthetic peptide bioregulator studied for cardiovascular-tissue signaling.
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Cardiogen research
Crystagen
Bioregulators
A synthetic peptide bioregulator studied for immune-tissue signaling.
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Crystagen research
Pancragen
Bioregulators
A synthetic peptide bioregulator studied for pancreatic-tissue signaling.
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Pancragen research
Prostamax
Bioregulators
A synthetic peptide bioregulator studied for prostate-tissue signaling.
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Prostamax research
Melanotan I/II
Aesthetics & Skin
Synthetic analogs of alpha-MSH, studied for melanocortin-receptor signaling and pigmentation research.
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Melanotan research
HCG
Weight & Metabolic
Human Chorionic Gonadotropin, a naturally occurring reproductive hormone studied for gonadal signaling.
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HCG research
Mazdutide
Weight & Metabolic
A dual GLP-1/glucagon receptor agonist studied in the same drug class as leading metabolic-health compounds.
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Mazdutide research
SLU-PP-332
Weight & Metabolic
A synthetic ERR agonist studied as an “exercise mimetic” for mitochondrial and metabolic gene expression.
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SLU-PP-332 research
MOTS-c
Weight & Metabolic
A mitochondrial-derived peptide studied for metabolic regulation and exercise-adaptation signaling.
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MOTS-c research
FLGR-242
Weight & Metabolic
A newer research compound studied in the metabolic-health space.
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FLGR-242 research
Blends & Combinations
Stack Science also carries pre-combined blends. Where a blend’s ingredients are explicitly named, we link out to each compound’s Signal Library entry. Where a formulation is proprietary and undisclosed, we say so rather than guessing.