Cerebrolysin Primary uses: Stroke recovery Traumatic brain injury Dementia and Alzheimer's support Cognitive enhancement Typical dosing: 5-10ml daily or every other day Duration: 10-30 injections per course Administration: Intramuscular injection (preferred) or slow IV infusion Special notes: Mixture of neuropeptides from porcine brain Used clinically in Europe and Asia Strong evidence for neurological recovery Prescription medication in many countries Dihexa Primary uses: Cognitive enhancement Memory improvement Potential Alzheimer's treatment Typical dosing: 5-10mg daily Injectable or oral (both available) Duration: Cycles of 4-8 weeks Administration: Subcutaneous injection or oral Special notes: Extremely powerful nootropic (7 orders of magnitude more potent than BDNF) Research stage (not FDA-approved) Limited human data Use with caution N-Acetyl Semax Amidate Primary uses: Advanced cognitive enhancement Neuroprotection Focus and mental clarity Typical dosing: 300-600mcg daily Intranasal or injectable Duration: 2-4 weeks, then break Administration: Intranasal spray (preferred) or subcutaneous Special notes: More potent than regular Semax Longer-lasting effects Excellent for demanding cognitive work Skin and cosmetic peptides (injectable) These improve skin quality beyond topical application

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Checot et al., From supramolecular polymersomes to stimuli-responsive nano-capsules based on poly (diene-b-peptide) diblock copolymers
We examine the role of receptor binding kinetics and -arrestin-biased signaling in the observed trafficking profiles, identifying a linked set of agonist characteristics optimally suited for insulin secretion, not shared by GLP-1R agonists in the current clinical use
In the LIVE trial, Liraglutide did not show an improvement in left ventricular ejection fraction (LVEF) in a 24-week period in ambulatory patients affected by HF LVEF lower than 45%
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