Reference Library · Marbella · Costa del Sol

The Peptide Encyclopedia

A reference directory of 47+ known research peptides — mechanism of action, structural class, approximate half-life and primary research category. Serving laboratories and researchers across Marbella, Puerto Banús, Estepona, Benahavís, Mijas, Sotogrande and the wider Andalucía region. For in-vitro research use only.

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47 entries

5-Amino-1MQ

Performance
Class
NNMT inhibitor (small molecule)
Half-life
~hours
Mechanism
Inhibits nicotinamide N-methyltransferase, raising NAD+ pools.

ARA-290

Cibinetide

Regenerative
Class
Erythropoietin-derived 11-mer peptide
Half-life
~2 min (systemic)
Mechanism
Activates the innate repair receptor (IRR/βcR–EpoR heteromer) without erythropoiesis.

Available sizes

Reference →

BPC-157

Regenerative
Class
Synthetic pentadecapeptide (gastric origin)
Half-life
~30–60 min (systemic)
Mechanism
Modulates nitric oxide and VEGF pathways supporting angiogenesis.

Available sizes

Reference →

Cagrilintide

Metabolic
Class
Long-acting amylin analogue
Half-life
~7 days
Mechanism
Activates amylin/calcitonin receptors.

Available sizes

Reference →

Cerebrolysin

Cognitive
Class
Neurotrophic peptide mixture
Half-life
Variable
Mechanism
Mimics endogenous neurotrophic factor action.

CJC-1295 (no DAC)

Mod GRF (1-29)

Growth Hormone
Class
GHRH analogue
Half-life
~30 min
Mechanism
Stimulates anterior pituitary GHRH receptors for short GH pulses.

Available sizes

Reference →

CJC-1295 with DAC

Growth Hormone
Class
Long-acting GHRH analogue
Half-life
~6–8 days
Mechanism
Drug Affinity Complex binds albumin for sustained GHRH signaling.

Available sizes

Reference →

Dihexa

Cognitive
Class
Angiotensin IV analogue
Half-life
Several hours
Mechanism
Hepatocyte growth factor / c-Met augmentation.

DSIP

Delta Sleep-Inducing Peptide

Cognitive
Class
Nonapeptide
Half-life
~7 min (systemic)
Mechanism
Modulates EEG delta-wave activity and stress-response peptide release.

Available sizes

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Epitalon

Longevity
Class
Tetrapeptide (Ala-Glu-Asp-Gly)
Half-life
Short
Mechanism
Reported telomerase modulation in cell models.

Available sizes

Reference →

FOXO4-DRI

Longevity
Class
Retro-inverso peptide
Half-life
Short
Mechanism
Disrupts FOXO4–p53 interaction in senescent cells.

Available sizes

Reference →

GHK-Cu

Regenerative
Class
Copper-binding tripeptide
Half-life
Short (minutes systemic)
Mechanism
Copper chaperone modulating ECM and antioxidant gene expression.

Available sizes

Reference →

GHRP-2

Growth Hormone
Class
Hexapeptide GH secretagogue (ghrelin mimetic)
Half-life
~15–60 min
Mechanism
GHS-R1a agonist driving GH release with modest cortisol/prolactin activity.

Available sizes

Reference →

GHRP-6

Growth Hormone
Class
Hexapeptide GH secretagogue (ghrelin mimetic)
Half-life
~15–60 min
Mechanism
GHS-R1a agonist; notable appetite-stimulating activity via ghrelin pathway.

Glutathione

GSH

Longevity
Class
Tripeptide antioxidant (Glu-Cys-Gly)
Half-life
~10 min (plasma)
Mechanism
Primary intracellular thiol antioxidant; cofactor for GPx, GST enzyme families.

HCG

Human Chorionic Gonadotropin

Hormone
Class
Glycoprotein hormone (LH-receptor agonist)
Half-life
~24–36 h
Mechanism
Binds LH/CG receptors to drive gonadal steroidogenesis.

Hexarelin

Growth Hormone
Class
GH secretagogue
Half-life
~55 min
Mechanism
Potent ghrelin receptor agonist with cardiac receptor activity.

Humanin

Longevity
Class
24-aa mitochondrial-derived peptide
Half-life
Short
Mechanism
Cytoprotective via STAT3 and IGFBP-3 binding.

IGF-1 LR3

Growth Hormone
Class
Long-Arg3 IGF-1 analogue
Half-life
~20–30 h
Mechanism
Reduced binding to IGFBPs prolongs free fraction.

Available sizes

Reference →

Ipamorelin

Growth Hormone
Class
Selective GH secretagogue (ghrelin mimetic)
Half-life
~2 h
Mechanism
Selective GHS-R1a agonist driving pulsatile GH release without cortisol/prolactin elevation.

Available sizes

Reference →

Kisspeptin-10

Hormone
Class
GPR54/KISS1R agonist decapeptide
Half-life
~4 min
Mechanism
Activates KISS1R on GnRH neurons to drive LH/FSH release.

Available sizes

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KPV

Regenerative
Class
α-MSH C-terminal tripeptide
Half-life
Short
Mechanism
Anti-inflammatory action via melanocortin pathway.

Available sizes

Reference →

Liraglutide

Metabolic
Class
GLP-1 receptor agonist
Half-life
~13 h
Mechanism
Acylated GLP-1 analogue with albumin binding for extended action.

LL-37

Immune
Class
Cathelicidin antimicrobial peptide
Half-life
Short
Mechanism
Disrupts microbial membranes; modulates innate immunity.

Available sizes

Reference →

Mazdutide

Metabolic
Class
GLP-1/Glucagon dual agonist
Half-life
~5 days
Mechanism
Co-activation of GLP-1 and glucagon receptors for incretin/hepatic crosstalk.

Melanotan 1

Afamelanotide

Cosmetic
Class
Linear α-MSH analogue
Half-life
~30 min (free); depot forms much longer
Mechanism
Selective MC1R-biased melanocortin agonist driving eumelanin synthesis.

Available sizes

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Melanotan II

Cosmetic
Class
Cyclic α-MSH analogue
Half-life
~2 h
Mechanism
Non-selective melanocortin receptor agonist (MC1R/MC3R/MC4R).

Available sizes

Reference →

MK-677

Ibutamoren

Growth Hormone
Class
Oral ghrelin mimetic (non-peptide)
Half-life
~24 h
Mechanism
Orally bioavailable GHS-R agonist.

MOTS-c

Longevity
Class
Mitochondrial-derived peptide (16 aa)
Half-life
Short
Mechanism
Activates AMPK and modulates folate/methionine cycle.

Available sizes

Reference →

NAD+

Nicotinamide Adenine Dinucleotide

Longevity
Class
Pyridine nucleotide coenzyme
Half-life
Variable (rapid extracellular turnover)
Mechanism
Essential coenzyme for redox reactions, sirtuin and PARP enzyme families.

Oxytocin

Hormone
Class
Cyclic nonapeptide hormone
Half-life
~3–5 min
Mechanism
Agonist at the oxytocin receptor (OXTR); CNS and peripheral signaling.

Available sizes

Reference →

Pinealon

Cognitive
Class
Tripeptide (Glu-Asp-Arg)
Half-life
Short
Mechanism
Penetrates BBB; modulates oxidative stress markers.

Available sizes

Reference →

PT-141

Bremelanotide

Cosmetic
Class
Selective MC4R agonist
Half-life
~2 h
Mechanism
Central melanocortin pathway modulation.

Available sizes

Reference →

Retatrutide

Metabolic
Class
Triple GIP/GLP-1/Glucagon agonist
Half-life
~6 days
Mechanism
Simultaneous activation of three incretin/glucagon receptors.

Selank

Cognitive
Class
Tuftsin analogue
Half-life
Short
Mechanism
Modulates GABAergic tone and enkephalin metabolism.

Available sizes

Reference →

Semaglutide

Ozempic, Wegovy (reference)

Metabolic
Class
GLP-1 receptor agonist
Half-life
~165 h (7 days)
Mechanism
Selective agonism of the GLP-1 receptor modulating insulin secretion and gastric emptying.

Semax

Cognitive
Class
ACTH(4-10) analogue (heptapeptide)
Half-life
Short (intranasal)
Mechanism
Modulates BDNF and dopamine/serotonin signaling.

Available sizes

Reference →

Sermorelin

Growth Hormone
Class
GHRH (1-29) analogue
Half-life
~10–20 min
Mechanism
Native GHRH fragment stimulating pituitary GH release.

Available sizes

Reference →

Snap-8

Acetyl Octapeptide-3

Cosmetic
Class
SNAP-25 mimetic octapeptide
Half-life
Topical — N/A systemic
Mechanism
Competes with SNAP-25 in the SNARE complex to modulate vesicle docking.

Available sizes

Reference →

SS-31

Elamipretide

Performance
Class
Mitochondria-targeted tetrapeptide
Half-life
~2 h
Mechanism
Binds cardiolipin to stabilize inner mitochondrial membrane.

Available sizes

Reference →

Survodutide

Metabolic
Class
Glucagon/GLP-1 dual agonist
Half-life
~5 days
Mechanism
Balanced glucagon and GLP-1 receptor activation.

Available sizes

Reference →

TB-500

Thymosin Beta-4 fragment

Regenerative
Class
Actin-sequestering peptide
Half-life
~2–3 h
Mechanism
Promotes cell migration, angiogenesis and actin remodeling.

Available sizes

Reference →

Tesamorelin

Growth Hormone
Class
Stabilized GHRH analogue
Half-life
~25–40 min
Mechanism
Trans-3-hexenoic acid N-terminal modification for proteolytic resistance.

Thymalin

Immune
Class
Thymic peptide complex
Half-life
Short
Mechanism
Modulates T-cell differentiation markers.

Thymosin Alpha-1

Tα1

Immune
Class
28-aa thymic peptide
Half-life
~2 h
Mechanism
TLR-mediated dendritic cell activation.

Available sizes

Reference →

Tirzepatide

Mounjaro (reference)

Metabolic
Class
Dual GIP/GLP-1 receptor agonist
Half-life
~120 h (5 days)
Mechanism
Co-activation of GIP and GLP-1 receptors for incretin pathway studies.

VIP

Vasoactive Intestinal Peptide

Immune
Class
28-aa secretin-family peptide
Half-life
~2 min (plasma)
Mechanism
Agonist at VPAC1/VPAC2 receptors; broad immunomodulatory and vasodilator activity.

Available sizes

Reference →

Marbella & Costa del Sol

Regena Peptides is based on the Costa del Sol and supplies research-grade compounds to laboratories and independent researchers across Marbella, Puerto Banús, Nueva Andalucía, San Pedro de Alcántara, Estepona, Benahavís, Mijas, Fuengirola, Sotogrande, Málaga city and the wider Andalucía region.

Research-Use Disclaimer

All information is provided for educational and scientific reference purposes only. The compounds listed are research chemicals intended for in-vitro investigation by qualified professionals. Nothing on this page constitutes medical advice, a therapeutic claim, or dosing guidance.