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Cerebrolysin NGF/BDNF mimetic; TrkB receptor activation 30+ RCTs; Cochrane review meta-analysis 10–30mL IV daily for 10–20 days Approved in 44 countries; not FDA-approved Strongest human evidence base; requires IV administration …
Both BPC-157 and TB-500 appear in plantar fasciitis protocols, but they activate different cellular pathways. BPC-157 primarily stimulates VEGF (vascular endothelial growth factor) release and nitric oxide synthase activity. Mean…
Cosmetic peptide serums sold for hair growth contain peptide concentrations between 0.01% and 0.5%. Below the threshold used in clinical studies. Research-grade peptides for alopecia, sourced from facilities like Real Peptides, a…
BPC-157 exists in two primary forms: the acetate salt used in most animal studies and the arginine salt tested in limited human trials. Published research from the University of Zagreb used subcutaneous or intragastric administra…
Thymosin Alpha-1 Upregulates IL-2 receptors on T-cells, enhances thymic T-cell maturation ~2 hours 1.6mg SubQ twice weekly Immune reconstitution post-chemotherapy, chronic viral infections Restores impaired T-cell function. No ef…
PT-141 (Bremelanotide) MC4R (melanocortin-4 receptor) Activates hypothalamic MC4R → dopamine + oxytocin release → increased desire and arousal independent of vascular changes 4–6 hours Female hypoactive sexual desire disorder; ps…
PT-141 (Bremelanotide) Melanocortin receptor agonist in hypothalamus. Increases dopaminergic arousal signalling MC3/MC4 receptors in medial preoptic area FDA-approved for HSDD in premenopausal women (RECONNECT trial, n=1,267) Mos…
Mitochondrial Function (SS-31, MOTS-c) Stabilizes inner mitochondrial membrane, improves electron transport chain coupling Direct ATP synthesis efficiency. More energy per unit fuel consumed 7–14 days for measurable output change…
Cerebrolysin BDNF/NGF receptor agonism, reduces amyloid-beta aggregation Partial. Requires IV/IM administration for optimal delivery Phase III trials in vascular dementia (CNS Drugs, 2015) Most clinically validated nootropic pept…
The fundamental misconception about cognitive peptides is that they 'boost brain power' as a vague, generalised effect. They don't. Each peptide targets a specific receptor system: Cerebrolysin contains neurotrophic peptides that…
DSIP (Delta Sleep-Inducing Peptide) Increases slow-wave sleep duration; modulates serotonin and GABA activity in the thalamus 12–18 minute reduction in sleep latency (Schneider-Helmert, 1981) Increases slow-wave sleep by 31%; red…
The gap between 'works in rodents' and 'FDA-approved for human cognitive enhancement' is vast. Cerebrolysin has 30+ years of clinical use in Europe and Asia for stroke recovery and dementia. Regulatory approval exists in 44 count…
KPV (Lys-Pro-Val) Melanocortin receptor agonist; inhibits NF-κB translocation 40–55% reduction in IL-6, TNF-α in murine colitis models (Journal of Immunology, 2019) Oral (enteric-coated) or subcutaneous Most studied peptide for g…
DSIP (Delta Sleep-Inducing Peptide) Enhances delta wave activity during slow-wave sleep; exact receptor target unclear 25mcg–1mg IV or intranasal Extremely short (15 min plasma); unstable after reconstitution Moderate. Several sm…
GHK-Cu (copper tripeptide) Inhibits TGF-beta1, upregulates VEGF, reduces dermal papilla fibrosis 340 Da 18% density increase in 12-week trial (Int J Trichology 2015) 1.5% topical solution, daily application with microneedling Mos…
Glutathione (reduced) Direct intracellular antioxidant; conjugates Phase II toxins Cochrane review: oral bioavailability <10%; liposomal forms increase plasma GSH 25–35% Acute oxidative stress; adjunct to chemotherapy protocols E…
Thymosin-alpha-1 TLR2 agonist, cytokine upregulation Th1 response, dendritic cell activation Subcutaneous injection 1.6–3.2 mg twice weekly Gold standard for immune modulation research. Strongest clinical trial evidence for viral…
Comparison table introducing three common peptide classes, their mechanisms, evidence base, and typical research dosing. Kisspeptin Analogs Stimulates GnRH neurons in the hypothalamus to increase pulsatile GnRH release Phase 1–2 …
BPC-157 (acetate salt) VEGF-A activation, angiogenesis enhancement 10 mcg/kg to 10 mg/kg (animal models) 50–60% ulcer size reduction at 14 days Strongest evidence base for gastric tissue repair; acetate form most studied Thymosin…
BPC-157 Endothelial repair, VEGF upregulation, eNOS activation 4–8 weeks (cumulative vascular repair) J Physiol Pharmacol (2019). Accelerated endothelial healing in vascular injury models 250–500 mcg subcutaneous daily Best for v…