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Cognitive

Nootropic and neuroactive peptides researched for focus, mood, and neuroprotection. Mostly studied in Eastern European literature — read protocols closely.

01
S
Semax
★★★★★ 3/5 research
Protocol snapshot
Dose300-1000 mcg/dose, 1-3x daily
Frequency1-3x daily
Cycle14-30 days, then break
Full protocol + references →
🏆Our pick for Semax
Ascension Peptides
10mg · USA · Card / Crypto / Zelle
  • Third-party tested (Janoshik)
  • COAs provided — Per-batch core, quarterly bonus
  • Highest verification tier in stock
  • 4.8★ community rating
$59.99
$2.70/mg
Buy at Ascension Peptides
Affiliate link · disclosure
Also solid
AMP Peptides
10mg · $4.40/mg
$44.00
Buy →
Double R Labs
10mg · $3.06/mg
$35.99
Buy →
Welli Labs
10mg · $3.00/mg
$29.99
Buy →
02
S
Selank
★★★★★ 3/5 research
Protocol snapshot
Dose250-500 mcg/dose, 1-3x daily
Frequency1-3x daily
Cycle14-30 days, then break
Full protocol + references →
🏆Our pick for Selank
Ascension Peptides
10mg · USA · Card / Crypto / Zelle
  • Third-party tested (Janoshik)
  • COAs provided — Per-batch core, quarterly bonus
  • Within 14% of cheapest, higher verification tier
  • 4.8★ community rating
$60.00$47.50
$2.14/mg
Buy at Ascension Peptides
Affiliate link · disclosure
Also solid
AMP Peptides
10mg · $4.40/mg
$44.00
Buy →
Double R Labs
10mg · $3.06/mg
$35.99
Buy →
Welli Labs
10mg · $3.00/mg
$29.99
Buy →
03
P
PT-141
★★★★★ 3/5 research
Protocol snapshot
Dose0.5-2 mg per dose (typical: 1-1.75 mg)
FrequencyAs needed, 1-3 hours before activity
CyclePRN, not daily
Full protocol + references →
🏆Our pick for PT-141
Ascension Peptides
10mg · USA · Card / Crypto / Zelle
  • Third-party tested (Janoshik)
  • COAs provided — Per-batch core, quarterly bonus
  • Best $/mg in stock right now
  • 4.8★ community rating
$59.99$49.00
$2.20/mg
Buy at Ascension Peptides
Affiliate link · disclosure
Also solid
AMP Peptides
10mg · $4.40/mg
$44.00
Buy →
Double R Labs
10mg · $3.14/mg
$36.99
Buy →
Welli Labs
10mg · $3.00/mg
$29.99
Buy →

For research use only. Rankings reflect our source-verification methodology and current research maturity — not medical advice.