P21 (with Adamantane) – 10mg

P21 is a nootropic research peptide developed to enhance neuronal growth, synaptic repair, and memory formation. Structurally derived from the CNTF family of peptides and modified with adamantane to improve brain bioavailability, P21 is investigated for its potential neuroregenerative properties and ability to support cognitive recovery in neurodegenerative or injury models.