← All research goals

Peptides for cognition & memory

Nootropic peptides studied for memory, focus and neuroprotection. 7 compounds tracked in this category, ranked by community report volume — each with an evidence grade and links to the research.

COA-verified rankings 209 suppliers reviewed Rankings never sold — how we test
Semax A
Memory · 200-600 mcg

Semax is an ACTH-derived Russian peptide with potent nootropic and neuroprotective effects that boosts BDNF and cognition, and is approved i…

Memory · Clinical Range

A porcine-brain-derived combination of low-molecular-weight neuropeptides and amino acids with BDNF- and NGF-like neurotrophic activity, use…

Dihexa B+
Memory · 5-20 mg

An angiotensin IV-derived nootropic peptide reported to be 10 million times more potent than BDNF at promoting synaptogenesis, studied mainl…

Sleep · 100 mcg

Pinealon is a synthetic Glu-Asp-Arg tripeptide derived from brain-tissue extracts and investigated for neuroprotective and geroprotective ef…

Recovery · 5 mg

Cortagen (Ala-Glu-Asp-Pro) is a brain-cortex-derived synthetic tetrapeptide bioregulator used to support neuroregeneration, cerebrovascular …

Memory · 1.7 g

A4 Amyloid Beta (Aβ) is an APP-derived peptide fragment that accumulates as brain plaques in Alzheimer's disease. Its buildup is a primary p…

Humanin A−
Longevity · HNG Analog

A 24-amino-acid mitochondrial-derived peptide that protects cells by blocking apoptosis via Bax and Bcl-2 and by lowering oxidative stress a…

Where researchers buy

The same top-ranked, COA-checked suppliers apply across categories:

★ Top 3 picksOur highest-rated, most transparent labs — compared side by side
#1
Serum Research
Featured partnerAffiliated · disclosure
#2
BioChain USA
#3
Nootropics Depot
Score9.6/109.5/109.5/10
COA✓ Yes✓ Yes✓ Yes
CountryUSAUSAUSA
Why we rate itFull per-batch COAs on every product and competitive pricing, from our affiliated partner — labeled as such wherever it appears.Published per-batch COAs, third-party testing, and a risk-free guarantee from a US-only shipper.Operates at a global scale with a high degree of transparency, and earns praise for its customer support and logistics.
Check prices at Serum Research →Read review →Check prices at BioChain USA →Read review →Check prices at Nootropics Depot →Read review →

Educational information only — not medical advice and not an endorsement to use any compound. Evidence grades summarize published research; most compounds here are unapproved research chemicals sold for laboratory use and labelled "not for human consumption."