PinnyPeptide

Adamax vs Selank

Side-by-side comparison: effects, dosing ranges, side effects, regulatory status, and reconstitution.

Peptide A

Adamax

Cognitive

Adamantyl-capped Semax derivative — a more lipophilic, longer-acting nootropic analog.

Peptide B

Selank

Cognitive

Russian-approved anxiolytic peptide derived from tuftsin with nootropic and immunomodulatory properties.

Typical vial

5 mg

Typical dose

100-500 mcg

Half-life

Estimated longer than Semax (~hours, uncharacterized)

FDA status

Not FDA approved.

Typical vial

5 mg

Typical dose

250-500 mcg

Half-life

~15-30 minutes (extended biological effect due to downstream signaling)

FDA status

Not FDA approved for human use.

Adamax effects

  • Hypothesized BDNF upregulation in hippocampus / cortex
  • Theoretical longer duration of action vs. Semax
  • Theoretical improved blood-brain barrier penetration
  • Cognitive enhancement claims (attention, memory)
  • Mood and stress-resilience effects (extrapolated from Semax)

Selank effects

  • Reduces anxiety without sedation or cognitive impairment
  • Enhances memory consolidation and learning
  • Modulates serotonin, dopamine, and GABA neurotransmitter systems
  • Provides immunomodulatory effects through cytokine balance regulation
  • Increases brain-derived neurotrophic factor (BDNF) expression

Adamax side effects

  • Largely uncharacterized in published literature
  • By analogy with Semax: mild headache, sleep disturbance, irritability at high doses
  • Theoretical: adamantyl-related effects on dopamine signaling
  • Injection-site or intranasal irritation

Selank side effects

  • Mild nasal irritation (intranasal administration)
  • Fatigue during initial use (transient)
  • Occasional lightheadedness

Adamax dosing ranges

Cognitive research (intranasal)

100-300 mcg · Once or twice daily · 14-30 days per cycle

Subcutaneous research

100-500 mcg · Once daily · 14-30 days per cycle

Selank dosing ranges

Anxiolytic and cognitive enhancement (intranasal)

250-500 mcg · Two to three times daily · 2-4 weeks

Subcutaneous injection

250-500 mcg · Once daily · 2-4 weeks

Full Adamax guide → Full Selank guide →

Adamax vs Selank — common questions

What is the difference between Adamax and Selank?

Adamax: Adamantyl-capped Semax derivative — a more lipophilic, longer-acting nootropic analog. Typical dose 100-500 mcg. Selank: Russian-approved anxiolytic peptide derived from tuftsin with nootropic and immunomodulatory properties. Typical dose 250-500 mcg. Both fall under the Cognitive category.

Can you stack Adamax and Selank?

Stacking Adamax with Selank is a protocol-design question best raised with a clinician — it depends on your goal, current bloodwork, and whether both peptides target overlapping mechanisms. Both peptides should be tracked independently with separate injection sites and timing. PinnyPeptide supports multi-peptide stacks with automatic injection site rotation.

Which is dosed more frequently, Adamax or Selank?

Adamax is typically dosed: Once or twice daily for Cognitive research (intranasal); Once daily for Subcutaneous research. Selank is typically dosed: Two to three times daily for Anxiolytic and cognitive enhancement (intranasal); Once daily for Subcutaneous injection.

Are Adamax and Selank FDA approved?

Adamax: Not FDA approved. Selank: Not FDA approved for human use.

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