# Guides to Peptides

> Independent, science-backed peptide education and product comparison. We help consumers understand which peptides actually work, based on research — not marketing.

Guides to Peptides is an unbiased comparison and education site covering skincare peptides, wellness/supplement peptides, and fitness/recovery peptides. Our target audience is US consumers confused by contradictory peptide information across social media and product marketing.

## Key Pages

- [Homepage](https://guidestopeptides.com/): Entry point with quiz CTA and browsing by concern
- [Peptide Directory](https://guidestopeptides.com/peptides/): All peptide types with filters by category and evidence level
- [Product Directory](https://guidestopeptides.com/products/): Peptide products with filters by type, price, and peptide
- [Compare Products](https://guidestopeptides.com/compare/): Side-by-side product comparison builder
- [Peptide Quiz](https://guidestopeptides.com/quiz/): Interactive recommendation quiz
- [Guides](https://guidestopeptides.com/guides/): Educational content hub
- [About & Methodology](https://guidestopeptides.com/about/): Mission, methodology, transparency

## Peptide Profiles

- [Matrixyl](https://guidestopeptides.com/peptides/matrixyl/): Anti-aging collagen stimulator (well-studied)
- [Argireline](https://guidestopeptides.com/peptides/argireline/): "Botox-like" wrinkle relaxer (emerging research)
- [GHK-Cu / Copper Peptide](https://guidestopeptides.com/peptides/ghk-cu/): Repair, collagen, hair growth (well-studied)
- [BPC-157](https://guidestopeptides.com/peptides/bpc-157/): Gut/recovery compound (limited evidence, not FDA approved)
- [TB-500 / Thymosin Beta-4](https://guidestopeptides.com/peptides/tb-500/): Tissue repair (limited evidence, WADA banned)
- [Palmitoyl Tripeptide-1](https://guidestopeptides.com/peptides/palmitoyl-tripeptide-1/): Collagen stimulation (emerging)
- [Carnosine](https://guidestopeptides.com/peptides/carnosine/): Antioxidant peptide (emerging)
- [Collagen Peptides](https://guidestopeptides.com/peptides/collagen-peptides/): Hydrolyzed supplement form (well-studied)
- [GLP-1 Peptides / Semaglutide](https://guidestopeptides.com/peptides/glp-1-peptides/): Weight management, prescription only (well-studied)
- [NAD+ Precursor Peptides](https://guidestopeptides.com/peptides/nad-precursor-peptides/): Longevity/cellular (limited evidence)
- [CJC-1295](https://guidestopeptides.com/peptides/cjc-1295/): Growth hormone releasing peptide (limited evidence, not FDA approved)
- [Ipamorelin](https://guidestopeptides.com/peptides/ipamorelin/): Selective GH secretagogue (limited evidence, not FDA approved)
- [AOD-9604](https://guidestopeptides.com/peptides/aod-9604/): GH fragment for fat loss (limited evidence, failed phase IIb)
- [PT-141 / Bremelanotide](https://guidestopeptides.com/peptides/pt-141/): Sexual desire, FDA-approved as Vyleesi (well-studied)
- [Thymosin Alpha-1](https://guidestopeptides.com/peptides/thymosin-alpha-1/): Immune modulation (emerging, approved in 30+ countries)
- [Epithalon](https://guidestopeptides.com/peptides/epithalon/): Telomerase/longevity peptide (limited evidence)
- [Selank](https://guidestopeptides.com/peptides/selank/): Anxiolytic/nootropic peptide (emerging, approved in Russia)
- [Semax](https://guidestopeptides.com/peptides/semax/): Neuroprotective/cognitive peptide (emerging, approved in Russia)
- [Snap-8](https://guidestopeptides.com/peptides/snap-8/): Extended Argireline for expression lines (emerging)
- [Palmitoyl Tetrapeptide-7](https://guidestopeptides.com/peptides/palmitoyl-tetrapeptide-7/): Anti-inflammatory skincare peptide (emerging)

## Guides

- [Peptides 101](https://guidestopeptides.com/guides/peptides-101/): A no-BS guide to what peptides are and what they do
- [Skincare vs Supplement vs Injectable](https://guidestopeptides.com/guides/skincare-vs-supplement-vs-injectable/): Key differences between peptide delivery methods
- [The TikTok Peptide Hype](https://guidestopeptides.com/guides/tiktok-peptide-hype/): Separating fact from fiction in viral peptide content
- [Peptides for Muscle Recovery](https://guidestopeptides.com/guides/peptides-for-muscle-recovery/): CJC-1295, Ipamorelin, TB-500, BPC-157, and what athletes should know
- [Peptide Serums Explained](https://guidestopeptides.com/guides/peptide-serums-explained/): Matrixyl, Argireline, Snap-8 — how to read labels and layer peptide skincare
- [Nootropic Peptides](https://guidestopeptides.com/guides/nootropic-peptides/): Selank, Semax, and the cognitive enhancement trend
- [Growth Hormone Peptides](https://guidestopeptides.com/guides/growth-hormone-peptides/): CJC-1295, Ipamorelin, AOD-9604 — how they work and what the evidence says
- [Immune and Longevity Peptides](https://guidestopeptides.com/guides/immune-longevity-peptides/): Thymosin Alpha-1, Epithalon, and the gap between longevity claims and evidence

## Research Status Ratings

We rate each peptide's evidence level:
- Well-Studied: Multiple peer-reviewed human clinical trials
- Emerging: Some human studies, promising but not conclusive
- Limited: Primarily animal studies or very small human trials
- Unproven: Insufficient scientific evidence

## Optional

- [Full content for LLMs](https://guidestopeptides.com/llms-full.txt)