PinnyPeptide

Adamax vs Semax

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

Semax

Cognitive

Neuroprotective ACTH analog with nootropic and neurotrophic 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

200-600 mcg

Half-life

~2-3 minutes (very rapid degradation; biological effects last hours due to downstream gene expression changes)

FDA status

Not FDA approved for human use. Approved in Russia for strok…

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)

Semax effects

  • Upregulates BDNF and NGF expression for neuroprotection
  • Enhances memory formation, learning, and attention
  • Promotes neuronal survival after ischemic injury
  • Modulates serotonergic and dopaminergic neurotransmission
  • Supports optic nerve health and visual function

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

Semax side effects

  • Mild nasal irritation with intranasal administration
  • Occasional headache
  • Rare anecdotal reports of hair thinning at high doses
  • Mild dizziness in sensitive individuals

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

Semax dosing ranges

Cognitive enhancement

200-600 mcg · Once or twice daily (intranasal) · 10-20 days per course

Neuroprotection / stroke recovery

600-1200 mcg · Two to three times daily (intranasal) · 10-14 days

Full Adamax guide → Full Semax guide →

Adamax vs Semax — common questions

What is the difference between Adamax and Semax?

Adamax: Adamantyl-capped Semax derivative — a more lipophilic, longer-acting nootropic analog. Typical dose 100-500 mcg. Semax: Neuroprotective ACTH analog with nootropic and neurotrophic properties. Typical dose 200-600 mcg. Both fall under the Cognitive category.

Can you stack Adamax and Semax?

Stacking Adamax with Semax 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 Semax?

Adamax is typically dosed: Once or twice daily for Cognitive research (intranasal); Once daily for Subcutaneous research. Semax is typically dosed: Once or twice daily (intranasal) for Cognitive enhancement; Two to three times daily (intranasal) for Neuroprotection / stroke recovery.

Are Adamax and Semax FDA approved?

Adamax: Not FDA approved. Semax: Not FDA approved for human use. Approved in Russia for stroke recovery, cognitive impairment, and optic nerve disease.

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