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P-21
researchCognition/MoodEvidence grade
DResearch/compounded/adjunct (no established FDA indication)
Cardiovascular · 0–5 · separate axis
0
PurposeCognition / Mood
MechanismSynthetic peptide analog of ciliary neurotrophic factor; studied for neurogenesis in preclinical models
EffectsStudied for learning and memory signalling; human data is absent
DosingNo human dose established.
Bottom linePopular in research/compounding; human safety/benefit not well-established.
Batches on filenone
No tested batches on file.
Cautions & interactions
Not FDA-approved; avoid self-administration; unverified sourcing and purity
No well-established interaction profile for non-approved peptides; avoid combining multiple research compounds; discuss meds with clinician.
CV 0 of 5 — No solid direct cardiovascular outcomes evidence; any benefit is indirect or unproven.