What each peptide is & what it affects
An educational reference for the compounds you can track in LynkDose — what each one is, how it is thought to work, and the body systems it is most commonly associated with. Not medical advice.
BPC-157
Cytoprotective peptide
A synthetic 15-amino-acid peptide derived from a protein found in gastric juice, widely discussed in the context of soft-tissue recovery, tendon and ligament repair, and gut health.
Cagrilintide
Long-acting amylin analog
A long-acting amylin analog discussed in the context of appetite regulation and weight management, often paired with GLP-1 agonists.
CJC-1295
GHRH analog
A growth-hormone-releasing hormone (GHRH) analog discussed for prompting the pituitary to release the body’s own growth hormone, most often paired with a GH secretagogue like Ipamorelin.
GHK-Cu
Copper-binding peptide
A naturally occurring copper-binding tripeptide best known in skincare for its role in collagen support, skin remodeling, and hair-related research.
Ipamorelin
GH secretagogue
A selective growth-hormone secretagogue that prompts the pituitary to release a pulse of the body’s own growth hormone, known for being relatively clean and selective compared with older peptides in its class.
Melanotan II
Melanocortin receptor agonist
A synthetic analog of the melanocyte-stimulating hormone that is most associated with discussion around skin tanning and, through its melanocortin activity, libido and sexual arousal.
MK-677 (Ibutamoren)
GH secretagogue (oral)
An orally active, non-peptide growth-hormone secretagogue that mimics ghrelin to prompt the pituitary to release the body’s own growth hormone, notable for being taken by mouth rather than injected.
MOTS-c
Mitochondrial-derived peptide
A small mitochondrial-derived peptide that is most associated with discussion around metabolism, exercise response, and insulin sensitivity.
Mounjaro
Dual GIP/GLP-1 receptor agonist
Mounjaro is a brand name for tirzepatide, a once-weekly injectable that activates both the GIP and GLP-1 receptors and is widely associated with blood sugar control and appetite regulation.
PT-141 (Bremelanotide)
Melanocortin receptor agonist
A synthetic melanocortin receptor agonist derived from Melanotan II, most associated with sexual arousal and libido through central nervous-system pathways rather than blood-flow effects.
Retatrutide
GLP-1 / GIP / glucagon agonist
An investigational once-weekly agonist that acts on three hormone receptors at once — GLP-1, GIP, and glucagon — and is studied in the context of appetite and metabolic regulation.
Semaglutide
GLP-1 agonist
A long-acting GLP-1 receptor agonist that mimics a natural gut hormone to regulate appetite and blood sugar. Best known as the active ingredient in widely prescribed metabolic medications.
Sermorelin
GHRH analog
A growth-hormone-releasing hormone (GHRH) analog that signals the pituitary to produce and release the body’s own growth hormone, most associated with supporting natural GH output.
TB-500
Regenerative peptide
A synthetic peptide based on a region of thymosin beta-4, a naturally occurring protein involved in cell migration and tissue organization. Most associated with recovery and flexibility.
Tesamorelin
GHRH analog
A stabilized growth-hormone-releasing hormone (GHRH) analog best known for being studied in the context of reducing excess visceral abdominal fat by prompting the body’s own growth-hormone release.
Tirzepatide
GIP/GLP-1 dual agonist
A long-acting dual GIP and GLP-1 receptor agonist that mimics two gut hormones to regulate appetite and blood sugar, best known as the active ingredient in widely prescribed metabolic medications.
5-Amino-1MQ
Small-molecule NNMT inhibitor
A small-molecule NNMT inhibitor that is most associated with discussion around fat metabolism, energy balance, and body composition.
Ahk-Cu
Copper-binding peptide
A copper-binding tripeptide (alanine-histidyl-lysine bound to copper) most associated in cosmetic research with hair-follicle and scalp support.
Anastrozole
Aromatase inhibitor (non-steroidal)
A non-steroidal aromatase inhibitor that is most associated with lowering estrogen levels by blocking the conversion of androgens to estradiol.
AOD-9604
GH fragment (hGH 176–191 analog)
A modified fragment of the growth-hormone molecule that is most associated with discussion around fat metabolism without the broader growth-promoting effects of full growth hormone.
Cagrilintide + Retatrutide
Amylin analog + triple-receptor agonist blend
A research blend pairing the long-acting amylin analog cagrilintide with the triple-receptor agonist retatrutide, discussed in the context of appetite and metabolic regulation.
Cagrilintide + Tirzepatide
Amylin analog + GLP-1/GIP agonist blend
A combination of the long-acting amylin analog cagrilintide with the dual GLP-1/GIP agonist tirzepatide, discussed together in the context of appetite and weight regulation.
CagriSema
Amylin analog + GLP-1 agonist combination
A fixed-combination metabolic agent that pairs the amylin analog cagrilintide with the GLP-1 agonist semaglutide to act on appetite and satiety through two complementary pathways.
Cerebrolysin
Neuropeptide preparation
A peptide-based preparation derived from purified pig brain tissue, most associated with neuroprotection and cognitive and recovery-focused contexts.
CJC-1295 DAC
Long-acting GHRH analog
A long-acting growth-hormone-releasing hormone (GHRH) analog whose Drug Affinity Complex (DAC) extends its half-life, discussed for prompting the body’s own growth-hormone release over a much longer window than the no-DAC form.
CJC-1295 NO DAC+IPA
GHRH analog + GH secretagogue blend
A combination of CJC-1295 (no-DAC) and Ipamorelin that pairs a short-acting GHRH analog with a GH secretagogue, discussed as a way to support the body’s own growth-hormone release.
Dihexa
Synthetic angiotensin-derived peptide
A synthetic angiotensin IV–derived peptide that is most associated in discussion with synaptogenesis and memory-related cognitive support.
DSIP (Delta Sleep-Inducing Peptide)
Neuromodulatory peptide
A small neuropeptide first isolated from sleeping rabbits, most associated in community discussion with sleep quality, relaxation, and recovery.
Enclomiphene
Selective estrogen receptor modulator (SERM)
A selective estrogen receptor modulator (SERM) and the trans-isomer of clomiphene that is most associated with raising the body’s own LH, FSH, and testosterone in men.
Epitalon
Pineal tetrapeptide
A synthetic four-amino-acid peptide (Ala-Glu-Asp-Gly) derived from the pineal gland and discussed in the context of telomere and longevity research.
Follistatin 344
Myostatin-binding protein
A recombinant form of the naturally occurring follistatin protein, discussed mainly in the context of muscle growth because of its ability to bind and neutralize myostatin.
Fragment 176-191
Growth-hormone C-terminal fragment
A short synthetic fragment of the C-terminal region of human growth hormone that is most associated with fat-metabolism and body-composition discussions.
GHRP-2
GH secretagogue
A growth-hormone-releasing peptide (GHRP) that stimulates the pituitary to release a pulse of the body’s own growth hormone, and is also known for a notable effect on appetite via the ghrelin pathway.
GHRP-6
GH secretagogue
One of the earliest growth-hormone releasing peptides, GHRP-6 prompts the pituitary to release a pulse of the body’s own growth hormone and is especially known for its strong, ghrelin-driven appetite stimulation.
Glow
Peptide blend (GHK-Cu + BPC-157 + TB-500)
A popular combination blend pairing the copper peptide GHK-Cu with BPC-157 and TB-500, most associated with skin, recovery, and aesthetic-focused discussion.
Glutathione
Endogenous antioxidant tripeptide
A naturally occurring antioxidant tripeptide that is most associated with discussion around oxidative stress, cellular detoxification, and skin tone.
HCG
Gonadotropin hormone
A naturally occurring gonadotropin hormone that mimics LH and is most associated with stimulating the testes to maintain their own testosterone production and size during testosterone-based protocols.
Hexarelin
GH secretagogue (GHRP)
A potent growth-hormone-releasing peptide (GHRP) that strongly stimulates the pituitary to release a pulse of the body’s own growth hormone, known as one of the more powerful — but less selective — peptides in its class.
IGF-1 LR3
IGF-1 analog
A long-acting analog of insulin-like growth factor 1, modified to resist binding proteins so it stays active longer, and discussed mainly in the context of muscle growth and recovery.
KLOW
Peptide blend (GHK-Cu + KPV + LL-37 + BPC-157 + TB-500)
A popular multi-peptide blend that combines GHK-Cu with KPV, LL-37, BPC-157, and TB-500, most associated with skin, anti-inflammatory, and recovery-focused discussion.
L-Carnitine
Amino-acid-derived small molecule
A naturally occurring amino-acid-derived compound that is most associated with the transport of fatty acids into cells for energy production.
LL-37
Antimicrobial host-defense peptide
LL-37 is the only human cathelicidin-derived antimicrobial peptide, most associated with innate immune defense and inflammation modulation.
Matrixyl
Cosmetic signal peptide
A topical signal peptide used in skincare formulations and most associated with collagen support and the appearance of fine lines.
MGF (Mechano Growth Factor)
IGF-1 splice variant
A splice variant of IGF-1 that the body produces in muscle after mechanical load, discussed in the context of activating satellite cells and local muscle repair.
Myostatin Inhibitor
Myostatin-pathway inhibitor
A general term for compounds aimed at blocking myostatin — a protein that limits muscle growth — and discussed mainly in the context of muscle size and body composition.
NAD+
Cellular coenzyme (small molecule)
A naturally occurring coenzyme central to cellular energy and metabolism that is widely discussed in the context of longevity and cellular health.
Noopept
Synthetic nootropic compound
A synthetic nootropic compound, structurally related to the racetam family, that is most associated in discussion with memory, focus, and general cognitive support.
NSI-189
Nootropic research compound
A small-molecule research compound, not a peptide, that is most associated with discussion around hippocampal neurogenesis and mood-related cognitive support.
P21
Neurotrophic peptide derivative
A small peptide derived from ciliary neurotrophic factor (CNTF) that is most associated in discussion with neurogenesis, BDNF signaling, and memory support.
PEG-MGF
Pegylated IGF-1 splice variant
A pegylated version of MGF (Mechano Growth Factor) designed to last longer in the body, discussed in the context of muscle repair and satellite-cell activation.
Pinealon
Short peptide bioregulator
Pinealon is a synthetic short peptide (tripeptide) studied in the context of brain aging and cognitive function in animal and cell research.
Selank
Synthetic nootropic peptide
A synthetic peptide derived from the immune fragment tuftsin that is most associated in discussion with calm, anxiety-related concerns, and cognitive support.
Semax
Synthetic nootropic peptide
A synthetic peptide derived from a fragment of the ACTH hormone that is most associated in discussion with focus, memory, and neuroprotection.
SLU-PP-332
Small-molecule ERR agonist
A small-molecule ERR (estrogen-related receptor) agonist that is most associated with research into endurance, energy metabolism, and the idea of mimicking some effects of exercise.
Somatropin
Recombinant human growth hormone
Somatropin is a pharmaceutical recombinant form of human growth hormone (rhGH) that is biologically identical to the body’s own growth hormone.
SS-31
Mitochondria-targeted tetrapeptide
A synthetic mitochondria-targeted tetrapeptide (also studied as elamipretide) discussed in the context of cellular energy and mitochondrial health.
Testosterone Cypionate
Anabolic-androgenic hormone (long-acting testosterone ester)
A long-acting injectable ester of the hormone testosterone that is most associated with testosterone replacement and hormonal-support discussion.
Testosterone Enanthate
Anabolic-androgenic hormone (testosterone ester)
A long-acting injectable ester of the hormone testosterone, most associated with testosterone replacement and androgen support protocols.
Thymalin
Thymic peptide complex
A peptide complex derived from the thymus gland, discussed mainly in the context of immune regulation and age-related immune support.
Thymulin
Thymic peptide hormone
A zinc-dependent thymic peptide hormone studied for its role in T-cell maturation and immune regulation.
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60 compounds in the library — all trackable in LynkDose.
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