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The AF Journal

The Longevity Library

Evidence-based research, protocols, and insights from the leading edge of longevity medicine.

Is BPC-157 Safe for Women? What the Science Really Says
Peptides

Is BPC-157 Safe for Women? What the Science Really Says

Is BPC-157 safe for women? Explore the science, hormone impact, safety data, and how women can approach peptide use...

April 9, 2026
Is BPC-157 Good for Muscle Growth? The Science of Recovery, Repair, and Performance
Peptides

Is BPC-157 Good for Muscle Growth? The Science of Recovery, Repair, and Performance

Discover if BPC-157 supports muscle growth, recovery, and injury repair. Learn the science behind this peptide and how...

April 8, 2026
Is BPC-157 Good for Gut Health? Science, Benefits, and What to Know
Peptides

Is BPC-157 Good for Gut Health? Science, Benefits, and What to Know

Discover how BPC-157 may support gut health, mucosal repair, and inflammation. Learn the science, risks, and why...

April 7, 2026
Does Kisspeptin-10 Increase Testosterone? Science, Mechanisms, and Natural Optimization
Hormones

Does Kisspeptin-10 Increase Testosterone? Science, Mechanisms, and Natural Optimization

Can kisspeptin-10 boost testosterone? Learn how it affects LH, the HPG axis, research findings, and natural ways to...

April 6, 2026
Does Retatrutide Suppress Appetite? What the Science Actually Shows
Weight Loss

Does Retatrutide Suppress Appetite? What the Science Actually Shows

Learn whether retatrutide suppresses appetite, how its triple agonist mechanism works, and what clinical trials reveal...

April 3, 2026
Does Retatrutide Increase Metabolism?
Weight Loss

Does Retatrutide Increase Metabolism?

The Truth About Fat Loss, Energy Burn, and Longevity Retatrutide is quickly becoming one of the most talked-about...

April 2, 2026
What Does Tesofensine Do?
Peptides

What Does Tesofensine Do?

Mechanism, Weight Loss Results, and Risks Explained Tesofensine has been gaining attention in the world of weight loss,...

March 31, 2026
Is TB-500 Nasal Spray Effective?
Peptides

Is TB-500 Nasal Spray Effective?

What Science Actually Says TB-500 has gained attention in the longevity and performance optimization space for its...

March 30, 2026
TB-500 vs Thymosin Beta-4: Key Differences, Benefits, and What You Need to Know
Peptides

TB-500 vs Thymosin Beta-4: Key Differences, Benefits, and What You Need to Know

In the world of peptides and regenerative medicine, few compounds generate as much confusion as TB-500 and Thymosin...

March 27, 2026
Is BPC-157 Safe for Kidneys? What the Latest Research Reveals
Peptides

Is BPC-157 Safe for Kidneys? What the Latest Research Reveals

BPC-157 has gained attention in the world of longevity, recovery, and regenerative health. Often discussed for its...

March 26, 2026
Will BPC-157 Help Sciatica? Science, Mechanisms, and What to Expect
Peptides

Will BPC-157 Help Sciatica? Science, Mechanisms, and What to Expect

Sciatica is one of the most frustrating pain conditions, sharp, radiating discomfort that can travel from the lower...

March 26, 2026
Should You Take BPC-157 Before or After a Workout?
Peptides

Should You Take BPC-157 Before or After a Workout?

What the Science Actually Suggests BPC-157 has become one of the most talked-about peptides in the world of recovery,...

March 23, 2026
GHK-Cu Anti-Inflammatory Effects
Peptides

GHK-Cu Anti-Inflammatory Effects

How This Copper Peptide Reduces Oxidative Stress and Supports Skin Regeneration Inflammation sits at the center of...

March 19, 2026
How Long Does It Take to Lose Weight on Tirzepatide? Timeline, Results, and What to Expect
Weight Loss

How Long Does It Take to Lose Weight on Tirzepatide? Timeline, Results, and What to Expect

Tirzepatide has quickly become one of the most talked-about breakthroughs in metabolic health and weight loss. But one...

March 18, 2026
How Long Does Tirzepatide Take to Start Working? A Week-by-Week Timeline
Weight Loss

How Long Does Tirzepatide Take to Start Working? A Week-by-Week Timeline

Tirzepatide has quickly become one of the most talked-about metabolic therapies for weight loss, blood sugar control,...

March 17, 2026
How Long Does It Take for Tirzepatide to Suppress Appetite?
Weight Loss

How Long Does It Take for Tirzepatide to Suppress Appetite?

Tirzepatide has rapidly become one of the most talked‑about metabolic medications in modern medicine. Originally...

March 16, 2026
Does Tirzepatide Burn Fat or Just Suppress Appetite? The Real Science Behind GLP‑1 Weight Loss
Weight Loss

Does Tirzepatide Burn Fat or Just Suppress Appetite? The Real Science Behind GLP‑1 Weight Loss

Does Tirzepatide Burn Fat or Just Suppress Appetite? Tirzepatide has quickly become one of the most talked‑about...

March 11, 2026
Is Retatrutide Approved By The FDA? What the Latest Research Reveals
Weight Loss

Is Retatrutide Approved By The FDA? What the Latest Research Reveals

Is Retatrutide Approved By The FDA? What the Latest Research Reveals Interest in next‑generation metabolic therapies...

March 11, 2026
Is Tirzepatide Safe for Kidneys? What the SURPASS Trials Reveal About Kidney Health
Weight Loss

Is Tirzepatide Safe for Kidneys? What the SURPASS Trials Reveal About Kidney Health

Is Tirzepatide Safe for Kidneys? What the Research Actually Shows Tirzepatide has rapidly become one of the most...

March 11, 2026
How Does GHK-Cu Improve Skin Elasticity? The Science Behind Copper Peptides and Skin Regeneration
Peptides

How Does GHK-Cu Improve Skin Elasticity? The Science Behind Copper Peptides and Skin Regeneration

How Does GHK-Cu Improve Skin Elasticity? The Science Behind Copper Peptides and Skin Regeneration Skin elasticity is...

March 10, 2026
Is MOTS-c Safe? Understanding the Risks and Benefits of This Mitochondrial Peptide
Peptides

Is MOTS-c Safe? Understanding the Risks and Benefits of This Mitochondrial Peptide

Understanding MOTS-c: What is it? MOTS-c is a mitochondrial peptide that has garnered attention for its potential...

March 10, 2026
Unlocking Hair Growth with GHK-Cu: Science, Benefits, and Application
Peptides

Unlocking Hair Growth with GHK-Cu: Science, Benefits, and Application

Unlocking Hair Growth with GHK-Cu Is GHK-Cu effective for hair growth, or are we just chasing trends? In this detailed...

March 10, 2026
Unlocking the Secrets of Follistatin-344: A Natural Approach to Muscle Growth
Peptides

Unlocking the Secrets of Follistatin-344: A Natural Approach to Muscle Growth

What Is Follistatin-344? Follistatin-344 is a fascinating peptide that has garnered attention for its potential to...

March 10, 2026
Why Retatrutide Outshines Tirzepatide: An In-Depth Comparison
Weight Loss

Why Retatrutide Outshines Tirzepatide: An In-Depth Comparison

Why Retatrutide Is Better Than Tirzepatide The recent therapeutic landscape has introduced a competitive comparison...

March 10, 2026
What Is Thymosin Alpha‑1? The Immune‑Modulating Peptide Explained
Peptides

What Is Thymosin Alpha‑1? The Immune‑Modulating Peptide Explained

What Is Thymosin Alpha‑1? The Immune‑Modulating Peptide Explained The immune system is one of the most important...

February 27, 2026
What Does MCV Mean on Blood Work? A Complete Guide to Red Blood Cell Size, Energy, and Nutrient Deficiencies
Longevity

What Does MCV Mean on Blood Work? A Complete Guide to Red Blood Cell Size, Energy, and Nutrient Deficiencies

Learn what MCV means on blood tests, normal ranges, causes of high or low MCV, and how it impacts energy, anemia, and...

November 4, 2025
What Does MCV Mean on Blood Work? A Complete Guide to Red Blood Cell Size, Energy, and Nutrient Deficiencies
Longevity

What Does MCV Mean on Blood Work? A Complete Guide to Red Blood Cell Size, Energy, and Nutrient Deficiencies

Learn what MCV means on blood tests, normal ranges, causes of high or low MCV, and how it impacts energy, nutrients,...

November 4, 2025
CJC-1295 Ipamorelin: Benefits, Risks, Results Timeline, and How It Works
Peptides

CJC-1295 Ipamorelin: Benefits, Risks, Results Timeline, and How It Works

Peptide therapy has quickly become one of the most talked-about tools in the world of longevity, performance...

October 18, 2025
How Much Tesamorelin Should You Take Daily? Optimal Dosage, Benefits, and Stacking Strategies
Protocols

How Much Tesamorelin Should You Take Daily? Optimal Dosage, Benefits, and Stacking Strategies

Tesamorelin has become one of the most discussed peptides in the world of longevity, fat loss, and metabolic...

August 21, 2025
MOTS-c Peptide Explained: Benefits, Risks, and What the Science Really Says
Peptides

MOTS-c Peptide Explained: Benefits, Risks, and What the Science Really Says

MOTS-c has quickly become one of the most talked-about peptides in longevity and performance circles. Touted for its...

July 8, 2025
BPC-157 and TB-500 Explained: How These Peptides May Support Healing, Recovery, and Longevity
Peptides

BPC-157 and TB-500 Explained: How These Peptides May Support Healing, Recovery, and Longevity

Learn how BPC-157 and TB-500 work, their potential benefits for injury recovery, chronic pain, and performance, plus...

July 4, 2025
Do Peptides Actually Work for Muscle Growth? Science, Benefits, and Real Results
Protocols

Do Peptides Actually Work for Muscle Growth? Science, Benefits, and Real Results

Do peptides help build muscle? Learn how peptide therapy works, the science behind it, and real-world results for...

July 3, 2025
What Is KPV Peptide Used For? Benefits for Gut Health, Autoimmunity, and Skin Repair
Longevity

What Is KPV Peptide Used For? Benefits for Gut Health, Autoimmunity, and Skin Repair

Learn what KPV peptide is used for, including gut healing, immune regulation, and skin repair. Explore benefits,...

July 2, 2025
How TB-500 Affects the Immune System: Science, Mechanisms, and Longevity Insights
Peptides

How TB-500 Affects the Immune System: Science, Mechanisms, and Longevity Insights

Discover how TB-500 (Thymosin Beta-4) influences immune function, inflammation, and recovery based on current research...

July 1, 2025
What Is the Wolverine Peptide Stack? Benefits, Mechanisms, and Results Explained
Peptides

What Is the Wolverine Peptide Stack? Benefits, Mechanisms, and Results Explained

Learn how the Wolverine Peptide Stack (BPC-157 + TB-500) may support healing, recovery, and performance through...

June 30, 2025
Best Way to Improve Cognitive Function: Peptides, Nootropics, and Brain Optimization Explained
Regenerative

Best Way to Improve Cognitive Function: Peptides, Nootropics, and Brain Optimization Explained

Discover how to improve cognitive function using peptides, nootropics, and brain optimization strategies for better...

April 3, 2025
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