P21: The Complete Guide to the Neurogenesis Amplifier

P21: The Complete Guide to the Neurogenesis Amplifier

The Peptide Index
Published on: 26/01/2026

Complete guide to P21, the CNTF mimetic peptide that amplifies endogenous neurogenesis by neutralizing blocking antibodies. Covers mechanisms, the BDNF/TrkB pathway, Alzheimer's research, dosing protocols, and realistic expectations for cognitive enhancement.

Cognitive Peptides
Pinealon: Complete Guide to the Circadian Reset Peptide

Pinealon: Complete Guide to the Circadian Reset Peptide

The Peptide Index
Published on: 23/01/2026

Complete guide to Pinealon, the bioregulator peptide that restores pineal gland function and circadian rhythms. Covers mechanisms, research evidence, protocols, stacking strategies with DSIP and Epitalon, and realistic expectations.

Longevity Peptides
Humanin: Complete Guide to the Mitochondrial Longevity Signal

Humanin: Complete Guide to the Mitochondrial Longevity Signal

The Peptide Index
Published on: 22/01/2026

Complete guide to Humanin, the mitochondrial-derived peptide linked to centenarian longevity. Covers mechanisms, research evidence, protocols, stacking strategies, and realistic expectations for healthy aging.

Longevity Peptides
Semax: Complete Guide to the Cognitive Enhancement Peptide

Semax: Complete Guide to the Cognitive Enhancement Peptide

The Peptide Index
Published on: 09/01/2026

A synthetic neuropeptide that enhances cognitive function by upregulating BDNF and modulating neurotransmitters. This guide covers the science, protocols, timeline expectations, and stacking strategies for cognitive optimization research.

Cognitive Peptides