Articles — PEPTEX

Peptide research articles, guides, and educational content from PEPTEX.

Research articles

• Microdosing GLP-1: Dr. Koniver's Protocol

  Standard GLP-1 doses deliver fast results but take muscle. Koniver's microdosing approach is slower but preserves what matters.

• Incretin Hormones Explained: GLP-1, GIP, and Glucagon

  How the incretin hormones GLP-1, GIP, and glucagon work, why targeting multiple receptors simultaneously produces stronger outcomes, and what that means for tirzepatide, retatrutide, and mazdutide.

• Do Peptides Build Muscle? The Honest Answer Based on Science

  Peptides don't build muscle like steroids. They optimize GH and metabolism to support hypertrophy. Ipamorelin, tesamorelin and MOTS-c evidence reviewed.

• Peptides for Athletes: Injury, Recovery, Performance

  Peptides give athletes three things: faster injury healing, deeper recovery, and improved performance. We break down specific protocols.

• Peptides for Runners: Endurance, Joints, and Recovery

  How BPC-157 protects runner's knees and Achilles, TB-500 speeds muscle recovery, and MOTS-C improves mitochondrial endurance for runners.

• Peptides After 50: A Practical Health Protocol

  Four peptides that directly support energy, joints, skin and hormonal balance past fifty. A complete protocol with dosing, prioritization and budgeting — under €6 per day.

• Peptides After 40: A Practical Health Protocol

  After 40, the body starts losing what it took for granted for decades. Peptides can restore some of what was lost.

• Retatrutide Long-Term Results: What 24 and 48 Week Studies Show

  24.2% weight loss at 48 weeks, 82% liver fat reduction, and 28.7% in Phase 3 — full breakdown of Jastreboff NEJM 2023 data and the TRIUMPH program.

• What to dissolve a peptide in?

  Choosing the right solvent is the first step to safe and effective peptide use.In most cases bacteriostatic water works fine, but some peptides require acidic water. The main thing is sterility and…

• What to Eat on Tirzepatide: Nutrition Guide for Best Results

  Practical nutrition guide while on tirzepatide: protein, hydration, portions. No dieting needed — just smart habits that amplify your results.

• Peptides for CrossFit: Performance and Injury Prevention

  How BPC-157, TB-500, and Ipamorelin help CrossFit athletes recover faster, protect joints from injury, and push training performance to the next level.

• BPC-157 for Brain and Nerves: From Stroke to Depression

  BPC-157 is known for joint healing, but its neuroprotective potential is even more impressive. From stroke to depression, from nerves to the brain.

• Couples and Peptides: Protocols for Him and Her

  How couples can use PT-141, Tirzepatide and GHK-Cu together to optimize health, body composition and quality of life — with protocols tailored to male and female physiology.

• Peptides for Sleep and Circadian Rhythm

  Epithalon restores melatonin, ipamorelin deepens sleep via GH, NAD+ supports circadian genes. Three pathways to better sleep.

• Mazdutide: Dual GLP-1 and Glucagon Agonist. How It Differs from Tirzepatide

  Mazdutide is a dual GLP-1 and glucagon agonist. We break down how it differs from tirzepatide, why the glucagon receptor matters for fat burning and liver health, and where mazdutide fits among GLP…

• Maximizing Fat Loss: Retatrutide + MOTS-C + NAD+ Stack

  Three peptides, three mechanisms, zero overlap: how a Retatrutide + MOTS-C + NAD+ stack attacks fat from three independent axes — appetite suppression, mitochondrial oxidation, and NAD+ repletion.

• NAD+ for Exercise Performance While on Weight Loss Peptides

  How NAD+ restores workout performance during caloric deficit from GLP-1 peptides. Timing around training, mitochondrial ATP production, and stacking.

• Types of peptides and their classification

  The world of peptides is wider than it seems at first glance. Some work with the hormonal system, others help with tissue recovery, others regulate immunity or improve sleep. To choose the right to…

• How to store peptides?

  Storage form determines shelf life. Lyophilized powder keeps much better than solution. When frozen, it retains activity for up to three years. Solution is much more finicky. In both cases the main…

• How to Calculate Peptide Dosage: A Simple Guide to mg, mcg, Units and mL

  A step-by-step guide to calculating peptide dosages: the formula for converting mg and mcg to syringe units, worked examples for BPC-157, TB-500, GHK-Cu, and a quick-reference dosing table.

• Peptides for Office Workers: Countering Sedentary Damage

  How BPC-157, NAD+, and MOTS-C help office workers counter back pain, metabolic slowdown, and accelerated aging from 8+ hours of sitting daily.

• Cagrilintide: Amylin Analog for Appetite Control and Diabetes Prevention

  Cagrilintide is a long-acting amylin analog for once-weekly injection. It suppresses appetite through the amylin pathway, independent from GLP-1, and supports insulin sensitization in beta cell dys…

• Tirzepatide Results: Real Weight Loss Timeline Month by Month

  Concrete weight loss numbers on tirzepatide month by month — from month one to six. Data from SURMOUNT clinical trials with thousands of participants.

• Where to start: your first peptide course

  It is the first course that builds your understanding of what works for you and how.On the first course you learn to read your body's reactions, build your understanding of protocols and working wi…

• Peptide Degradation: Heat, Light, and Shaking Damage

  Why peptides lose potency through improper storage — thermal degradation, photodegradation, and mechanical stress. The 90-day reconstituted peptide storage protocol.

• Understanding Peptide Half-Lives: Why Timing Matters

  Comprehensive guide to peptide half-lives from BPC-157's 4 hours to tirzepatide's 5 days. How timing affects blood levels and dosing frequency.

• NAD+: Why Pills Don't Work and What Actually Does

  NAD+ drops 50%+ with age. Pills get destroyed by your liver, IV drips cost thousands. Subcutaneous injections hit the sweet spot: high bioavailability, 3 minutes, no serious side effects. Full dosi…

• AOD-9604 vs Tirzepatide: Two Approaches to Fat Loss

  Tirzepatide suppresses appetite, AOD-9604 directly burns fat. Different mechanisms that can be combined for dual effect.

• The Future of Oral Peptide Delivery Systems

  Peptide drugs have long been injection-only. Today, nanoparticles, permeation enhancers, and enteric coatings are turning oral peptide administration into clinical reality.

• Ozempic Face: Why Your Face Ages on GLP-1 and How to Prevent It

  Rapid weight loss on GLP-1 agonists destroys facial volume. Learn why it happens and how a GHK-Cu peptide protocol protects against Ozempic Face from day one of therapy.

• How Growth Hormone Secretagogues Signal the Pituitary

  A detailed look at GHRH and GHRP receptor biology in the anterior pituitary: how ipamorelin and tesamorelin activate distinct signaling pathways to drive growth hormone release.

• Peptide Side Effects: What's Normal and When to Worry

  Side effects by category: GLP-1 (GI), GH peptides (water, joints), PT-141 (nausea, BP), BPC/TB (minimal). Normal vs warning signs.

• Ipamorelin: Growth Hormone Secretagogue. Who Is It For

  Ipamorelin as a standalone peptide earns a D-tier rating. But combined with Tesamorelin, it becomes one of the most proven stacks for natural growth hormone stimulation. We break down who it suits,…

• Peptide Bioavailability: Why Injectable Beats Oral

  Subcutaneous injection delivers 95%+ of a peptide dose into the bloodstream, while oral forms lose 97–99% to enzymatic degradation in the GI tract. We break down the pharmacokinetics, absorption ba…

• Retatrutide Dosing Protocol: Titration from 1mg to 12mg

  A practical 5-phase titration guide for retatrutide — from the 1 mg priming dose through to the full 12 mg therapeutic level, with dose-specific side-effect profiles, injection technique, lab monit…

• GLOW vs KLOW: Which Peptide Blend Fits Your Goal

  Two multi-peptide blends — one built for recovery and skin, the other for hair and systemic inflammation. We break down ingredients, use cases, and protocols so you pick the one that actually match…

• Cold Chain Shipping: How Peptides Stay Stable in Transit

  Lyophilized peptides remain stable at temperatures up to 40°C for weeks. We break down degradation chemistry, real transit threats, and why ice packs are more marketing than necessity.

• Tirzepatide for Beginners: Your First 8 Weeks Step by Step

  A week-by-week guide to your first 8 weeks on tirzepatide: from the first injection to visible results. What to expect and why it's easier than you think.

• Peptide Safety: LPS Contamination, Quality and How to Protect Yourself

  LPS endotoxin in peptides is an invisible threat. We break down how quality testing works, what to look for when buying, and why cheap peptides can cost you your health.

• How to build a peptide course

  A proper course is a complex put together with the right approach, to achieve the goals set. The goal determines the combination of peptides, the breaks between doses and the timing of administrati…

• Managing Injection Pain and Bruising: Tips for Beginners

  Subcutaneous injections intimidate many beginners, but proper technique makes them virtually painless. We cover needle selection, skin preparation, insertion angles, and bruise prevention strategies.

• Ipamorelin + Tesamorelin Stack: The GH Optimization Protocol

  Ready ipamorelin+tesamorelin stack protocol: doses, twice-daily schedule, 8-12 week cycles, expected effects.

• How Peptides Cross the Blood-Brain Barrier

  How DSIP and BPC-157 cross the blood-brain barrier via carrier-mediated transport, circumventricular organs, and pathological BBB modulation.

• Peptides vs Hormone Replacement Therapy: Differences and How to Choose

  Peptides stimulate your body to produce its own hormones. HRT replaces them. We break down when peptides are enough, when HRT is needed, and how to combine both.

• How BPC-157 Modulates Nitric Oxide Pathways

  BPC-157 is a 15-amino-acid peptide that influences all three nitric oxide synthase isoforms. Here is how it modulates NO pathways in the body.

• Anti-Aging Peptides: NAD+, Epithalon and GHK-Cu

  Three anti-aging peptides, three different mechanisms: NAD+ for cell energy, Epithalon for telomeres, GHK-Cu for tissue repair. How to choose.

• Tesamorelin vs CJC-1295: Why Doctors Prefer Tesamorelin

  CJC-1295 is cheaper, but a clinical trial was stopped due to a participant death. Tesamorelin is the most potent GH secretagogue with a proven safety profile. We break down dosing, ipamorelin stack…

• BPC-157 and the Gut-Immune Axis

  How BPC-157 supports immune function through gut barrier repair, microbiome modulation, and intestinal cytokine regulation. 70% of immunity starts in the gut.

• GLP-1 Peptides for Longevity: More Than Just Weight Loss

  GLP-1 agonists ranked number one for longevity peptides — above Epithalon, above MOTS-C. Anti-inflammatory effects, neuroprotection, mitochondrial improvement, 77% lower mortality. All at low doses…

• KPV in KLOW: The Anti-Inflammatory Peptide Explained

  How KPV tripeptide in KLOW suppresses NF-kB activation and reduces TNF-alpha and IL-6. The unique anti-inflammatory dimension of the recovery blend.