MaraPeptide

Peptide Reference Database

Clinical reference database covering mechanisms, dosing protocols, combinations, and contraindications.

49Peptides
9Categories
4Evidence Tiers

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Evidence tier:Tier 1Strong RCT/clinical evidenceTier 2Good human studiesTier 3Animal + early humanTier 4Preclinical only

12 peptides

GH SecretagoguesLongevity
T2

MK-677

Ibutamoren · Ibutamoren Mesylate

Orally active, non-peptide GH secretagogue that significantly raises GH and IGF-1 levels with once-daily dosing.

GHIGF-1oralanti-aging
OralView profile →
MitochondrialLongevity
T3

MOTS-c

Mitochondrial Open Reading Frame of the 12S rRNA-c

Mitochondria-derived peptide that acts as a metabolic regulator, improving insulin sensitivity and exercise capacity.

mitochondrialmetabolicanti-agingAMPK
SC injectionView profile →
MitochondrialLongevity
T3

Humanin

HN · Humanin G (HNG)

Mitochondria-derived peptide that protects against neurodegeneration, improves insulin sensitivity, and reduces cellular apoptosis.

mitochondrialneurologicalanti-aginglongevity
SC injectionView profile →
MitochondrialRegenerative
T2

SS-31

Elamipretide · Bendavia

Mitochondria-targeted antioxidant peptide that restores inner membrane structure and function, improving ATP production and reducing oxidative damage.

mitochondrialcardiacantioxidantATP
SC injectionView profile →
Longevity
T3

Epithalon

Epithalamin · Ala-Glu-Asp-Gly

Tetrapeptide derived from the pineal gland with telomerase-activating properties.

longevitytelomereanti-agingmelatonin
SC injection / IntranasalView profile →
ImmuneLongevity
T2

Thymosin Alpha-1

TA-1 · Thymalfasin

Thymic peptide (28 AA) that modulates T-cell maturation and innate immunity.

immunethymicT-cellantiviral
SC injectionView profile →
LongevityRegenerative
T3

GHK-Cu

Copper Peptide GHK-Cu · Glycyl-L-Histidyl-L-Lysine Copper

Naturally occurring copper-binding tripeptide (Gly-His-Lys) found in human plasma, saliva, and urine.

longevityanti-agingcollagenwound-healing
Topical / SC injectionView profile →
LongevityNeural
T3

Pinealon

EDR peptide · Glu-Asp-Arg

Short tripeptide (Glu-Asp-Arg) isolated from the pineal gland by Russian researchers (Khavinson et al.).

longevityneuroprotectivecircadianpineal
SC injection / IntranasalView profile →
ImmuneLongevity
T2

Thymalin

Thymogen · Thymic Extract Peptide

Polypeptide extract from bovine thymus gland, distinct from synthetic Thymosin Alpha-1 and Thymulin.

immunethymusT-cellanti-aging
IM injectionView profile →
Longevity
T4

FOXO4-DRI

FOXO4-p53 disruptor · Senolytic peptide

A retro-inverso peptide that selectively induces apoptosis in senescent cells by disrupting the FOXO4–p53 interaction.

senolyticsenescenceFOXO4p53
IP injection (animal research); SC/IV experimental in humansView profile →
MitochondrialLongevity
T4

SHLP2

Small Humanin-Like Peptide 2 · MOTS-like peptide

A mitochondrial-derived peptide from the 12S rRNA locus with anti-apoptotic and cytoprotective properties.

mitochondriallongevityanti-apoptoticcytoprotective
SC injection (research); endogenous peptideView profile →
LongevityNeural
T4

KL1

Klotho fragment · α-Klotho KL1 domain

The KL1 extracellular domain fragment of the anti-aging protein α-Klotho.

klothoalpha-klothoKL1cognitive
SC or IV injection (animal research)View profile →

MaraPeptide · Retatrutide & psychology

Silence in the nervous system — how Retatrutide changes your relationship with food, body and self

Psychological transformation on Retatrutide — essay for free!