Best P21 Stacks

A CNTF-derived peptide fragment that promotes neurogenesis and cognitive enhancement.

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P21 + Semax

A synthetic peptide derived from ACTH with nootropic and neuroprotective effects.

Semax dose: 200-1000 mcg, 1-2x daily

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P21 + Dihexa

A potent nootropic peptide that enhances cognitive function and promotes neural connectivity.

Dihexa dose: 10000-40000 mcg, 1x daily

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P21 + N-Acetyl Semax Amidate

An enhanced, more stable form of Semax with extended duration of effects.

N-Acetyl Semax Amidate dose: 100-600 mcg, 1-2x daily

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P21 + N-Acetyl Selank Amidate

An enhanced, more stable form of Selank with extended anxiolytic effects.

N-Acetyl Selank Amidate dose: 100-400 mcg, 1-2x daily

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