Peptides

A synthetic peptide fragment derived from a gastric protein, widely discussed for soft-tissue recovery. Human evidence remains limited relative to its online popularity.

Recovery · Skin / repair · Gut health

A synthetic peptide associated with thymosin beta-4 research, commonly discussed alongside soft-tissue recovery and mobility. Often paired conversationally with BPC-157.

Recovery · Skin / repair

A growth hormone-releasing hormone (GHRH) analogue discussed for GH-axis support. Often mentioned with ipamorelin in fitness forums as a commonly discussed pairing.

Muscle / GH axis · Recovery · Sleep / recovery adjunct

A selective growth hormone secretagogue (ghrelin-receptor agonist) discussed for GH pulses with a relatively favorable selectivity profile in older literature.

Muscle / GH axis · Recovery · Sleep / recovery adjunct

A mitochondria-derived peptide researched for metabolic regulation and exercise-related stress responses. Still early relative to incretin drugs, but frequently searched in biohacking circles.

Metabolic · Fat loss · Recovery · Longevity / aging

A copper-binding tripeptide studied in skin biology and remodeling. Appears in topical cosmetic research and in online discussions of recovery and tissue quality.

Skin / repair · Recovery

A synthetic hexapeptide growth hormone secretagogue that activates the ghrelin receptor, producing one of the strongest GH releases of any peptide in its class. Distinct among GH secretagogues for a separate, GH-independent cardioprotective effect documented in animal models.

Muscle / GH axis · Recovery

A synthetic hexapeptide ghrelin receptor agonist that stimulates growth hormone release. Notable for being the one compound in this family with a real regulatory approval, marketed in Japan as a diagnostic agent for GH deficiency under the name pralmorelin.

Muscle / GH axis · Recovery

The original growth hormone-releasing hexapeptide, discovered in 1984 and the founding compound of the entire GHRP family, including GHRP-2 and hexarelin. Known for producing the strongest appetite stimulation of the group alongside its GH-releasing effect.

Muscle / GH axis · Recovery

A mitochondria-targeted peptide that stabilizes cardiolipin in the inner mitochondrial membrane, supporting energy production and reducing oxidative stress. FDA-approved as elamipretide for Barth syndrome, a rare genetic mitochondrial disease, and one of the few peptides in this category with an actual regulatory approval.

Longevity / aging · Recovery

A naturally occurring protein that neutralizes myostatin and related growth-inhibiting signals, allowing muscle to grow beyond its normal ceiling. The systemically circulating isoform used in early-phase gene therapy trials for muscular dystrophy, now also sold as a standalone research peptide with no human data in that injectable form.

Muscle / GH axis · Recovery

A splice variant of IGF-1 that muscle tissue produces locally in response to mechanical stretch, stimulation, or injury. Studied mainly in animal and cell models of muscle repair and regeneration; sold as a synthetic research peptide despite very limited direct human data.

Muscle / GH axis · Recovery

A polyethylene glycol-modified version of MGF designed to extend the parent peptide's minutes-long half-life to several days. A research-chemical product built on real underlying biology, but with essentially no dedicated studies of its own, pegylated form.

Muscle / GH axis · Recovery

An 11-amino-acid peptide engineered from a non-erythropoietic region of erythropoietin, designed to activate tissue-repair signaling without stimulating red blood cell production. Studied in phase 2 human trials for small-fiber neuropathy, one of the more clinically tested "tissue protective" peptides.

Recovery · Neuroprotection

A synthetic tetrapeptide associated with pineal peptide research and aging biology conversations. Evidence is largely historical/preclinical with limited modern RCT coverage.

Longevity / aging · Sleep / recovery adjunct · Recovery