Research blog

The Maylene research blog

Articles on peptide science, research evidence, regulation, quality testing and handling. Explore original studies and regulatory references alongside the research.

Peptide science

What Are Peptides? A Beginner’s Guide to How They Work

What are peptides? Learn what peptides are, how amino acid chains form peptides, what peptides do in the body, how they differ from proteins, and why their safety depends on the compound.

26 October 2026 · 14 min read

Peptide science

What Are Peptides? A Beginner’s Guide to How They Work

What are peptides? Learn what peptides are, how amino acid chains form peptides, what peptides do in the body, how they differ from proteins, and why their safety depends on the compound.

26 October 2026 · 14 min read

Peptide science

Peptides vs Proteins: What Is the Difference?

Learn how peptides and proteins differ in amino acid chain length, 3D folding, function, digestion and absorption, with examples including insulin and collagen.

26 October 2026 · 9 min read

Peptide science

How Peptide Signalling Works in the Human Body

Learn how peptide signalling works in the human body, including receptor binding, GPCRs, second messengers, insulin signalling and cellular responses.

26 October 2026 · 11 min read

Peptide science

Natural, Synthetic and Therapeutic Peptides Explained

Learn how natural, synthetic and therapeutic peptides differ, how peptides are produced, where the categories overlap, and what peptide type really tells you.

26 October 2026 · 12 min read

Peptide science

Why Peptides Are Becoming Important in Modern Drug Research

Learn why peptide drugs are becoming increasingly important in modern drug research, how scientists are improving stability and delivery, and how AI is changing peptide discovery.

26 October 2026 · 10 min read

Peptide science

How Peptides Are Named and Classified

Learn how peptide classification works, how amino acid sequences are named and written, and how peptides are grouped by size, structure, origin, and function.

26 October 2026 · 9 min read

Peptide science

What Is a Peptide Receptor?

Learn what a peptide receptor is, how peptide receptors bind specific ligands, where they are found, and why receptor specificity matters in cell signalling.

26 October 2026 · 10 min read

Peptide science

What Phase 1, Phase 2, and Phase 3 Peptide Trials Mean

Learn what Phase 1, Phase 2, Phase 3, and Phase 4 clinical trials mean, how peptide drugs move through FDA development, and why most research peptides never reach approval.

26 October 2026 · 7 min read

Peptide science

Understanding Sample Size in Peptide Clinical Trials

Why sample size affects the strength and precision of peptide research, and how to judge whether a small clinical trial supports its claims.

26 October 2026 · 8 min read

Peptide science

What Does Preclinical Evidence Really Mean?

Learn what preclinical evidence actually means in peptide research, how it differs from clinical data, and why the distinction matters.

26 October 2026 · 6 min read

Quality & testing

How Researchers Test Peptide Stability

Learn how researchers test peptide stability using forced degradation, stability-indicating HPLC, ICH conditions, and accelerated stability studies.

26 October 2026 · 9 min read

Peptide science

Common Limitations in Peptide Studies

The real methodological limits in peptide research, from small samples to publication bias, and why they matter for reading the evidence.

26 October 2026 · 10 min read

Regulation & status

FDA-Approved Peptides vs Experimental Peptides

Learn the difference between FDA-approved peptides and experimental peptides. It includes clinical evidence, drug approval, manufacturing standards, safety risks, and peptide regulation.

26 October 2026 · 9 min read

Regulation & status

How the FDA Evaluates Peptide Medicines

Learn how the FDA evaluates peptide medicines through clinical trials, IND and NDA reviews, manufacturing standards, purity testing, and safety assessments

26 October 2026 · 7 min read

Regulation & status

What Does “Not FDA Approved” Mean?

Understand what “Not FDA Approved” means for peptides and medicines. Learn about FDA approval status, investigational drugs, compounded products, research chemicals, and regulatory differences.

26 October 2026 · 9 min read

Regulation & status

Peptide Regulation in the UK: A General Overview

Understanding peptide regulation in the UK, including MHRA approval rules, Human Medicines Regulation 2012, licensed peptide medicines, research peptides, Specials, and legal supply requirements.

26 October 2026 · 9 min read

Regulation & status

MHRA, FDA, and EMA: How Their Roles Differ in Global Drug Regulation

Compare FDA, EMA, and MHRA drug regulation systems. Learn how these agencies differ in medicine approval, clinical trials, peptide regulation, and global market access.

26 October 2026 · 9 min read

Regulation & status

Compounded Peptides vs Approved Medicines

Learn the difference between compounded peptides and FDA-approved medicines, including regulation, safety standards, 503A vs. 503B pharmacies, and quality controls.

26 October 2026 · 7 min read

Regulation & status

Why Some Peptides Are Restricted in Competitive Sport

Learn why some peptides are restricted in competitive sport, how WADA classifies BPC-157, CJC-1295, and growth factors, and what anti-doping rules mean for athletes.

26 October 2026 · 9 min read

Regulation & status

How WADA Classifies Peptide Hormones and Growth Factors

Learn how WADA classifies peptide hormones, growth factors, BPC-157, TB-500, CJC-1295, GHRPs, and EPO under the 2026 Prohibited List.

26 October 2026 · 9 min read

Quality & testing

Are All Peptides Safe? Why the Answer Depends on the Compound

Peptide safety depends entirely on the compound. See how FDA-approved peptides differ from research chemicals and what the evidence actually shows.

26 October 2026 · 9 min read

Quality & testing

The Risks of Unverified Peptide Claims Online

Peptide claims online often outpace the science. Learn how to spot unverified claims, weak evidence, and marketing dressed up as research.

26 October 2026 · 7 min read

Quality & testing

Why Long-Term Safety Data Matter

Why short trials can miss real risks, and why long-term safety data shape how peptides and drugs are evaluated.

26 October 2026 · 7 min read

Quality & testing

Common Warning Signs of Poor-Quality Health Information

Learn the red flags of unreliable health content online, from missing citations to exaggerated claims, so you can evaluate peptide research with confidence.

26 October 2026 · 7 min read

Quality & testing

Why Celebrity Endorsements Are Not Scientific Evidence

Why a famous name attached to a health product tells you nothing about whether it actually works or is safe.

26 October 2026 · 6 min read

Quality & testing

The Risks of Buying Unregulated Injectable Products

Why injectable products carry higher risk than other unregulated goods, and what happens when sterility and potency go untested.

26 October 2026 · 6 min read

Quality & testing

How Social Media Has Changed Public Perception of Peptides

How TikTok and Instagram reshaped what people believe about peptides, and why the gap between viral claims and real evidence matters.

26 October 2026 · 6 min read

Peptide science

BPC-157: Uses, Benefits, Research, Side Effects & Dosage Guide

Evidence-based guide to BPC-157: how it works, what animal studies show, FDA and WADA status, side effects, and research dosage data.

26 October 2026 · 12 min read

Peptide science

How BPC-157 Works: Mechanism of Action Explained

Learn how BPC-157 is thought to work at the cellular level, including its effects on angiogenesis, growth factors, and tissue repair pathways.

26 October 2026 · 7 min read

Peptide science

TB-500: Uses, Benefits, Research, Side Effects & Dosage Guide

Learn about TB-500 uses, benefits, research, side effects, dosage, FDA status, safety concerns, and what current evidence says about this research peptide.

26 October 2026 · 14 min read

Peptide science

How TB-500 Works: Understanding Its Mechanism of Action

What is TB-500 and how does it work? Discover its cellular mechanisms, tendon healing research, potential effects, risks, and regulatory updates.

26 October 2026 · 9 min read

Peptide science

GHK-Cu: Uses, Benefits, Research, Side Effects & Dosage Guide

GHK-Cu explained: mechanism, research status, evidence tiers, 2026 FDA regulatory update, side effects, and what current science actually shows.

26 October 2026 · 10 min read

Peptide science

How GHK-Cu Supports Collagen Research: Mechanism Explained

How GHK-Cu is thought to support collagen production at the cellular level, the lysyl oxidase pathway involved, and what the research actually shows.

26 October 2026 · 6 min read

Peptide science

Tirzepatide: Uses, Benefits, Research, Side Effects & Dosage Guide

Learn how tirzepatide works, its FDA-approved uses, clinical trial results, side effects, and dosage guidelines backed by peer-reviewed research

26 October 2026 · 8 min read

Peptide science

Wolverine Stack: Ingredients, Research, Benefits & Safety Guide

Wolverine Stack (BPC-157 + TB-500) explained: individual mechanisms, what's actually been studied together, regulatory status, and real safety considerations.

26 October 2026 · 8 min read

Peptide science

Bacteriostatic water explained: what bac water is and how it differs from sterile water

Bac water is sterile water with a benzyl alcohol preservative. This guide sets out what its labels say about its make-up, containers, storage and cautions, how it differs from Water for Injections and saline, and where it stands in the UK.

22 October 2026 · 8 min read

Pens & handling

Peptide storage: how to store peptide pens and research peptides

Peptide storage in plain terms: what the storage line on a label means, why heat, freezing, light and moisture matter, and how laboratories keep, log and check refrigerated material.

22 October 2026 · 9 min read

Pens & handling

Peptide pens explained: how prefilled research pens are built and labelled

A plain guide to how prefilled research peptide pens are built and labelled, and how they compare with vials on labelling, handling and documentation.

22 October 2026 · 8 min read

Quality & testing

Peptide testing in the UK: how to read a certificate of analysis

What peptide testing can and cannot show: HPLC purity, mass spectrometry, content, endotoxin and sterility tests, how to check a certificate of analysis against the product, and how to choose a laboratory in the UK.

22 October 2026 · 10 min read

Peptide science

What is a peptide? Amino acids, peptide bonds and how peptides are made

A plain-English guide to what peptides are: amino acids and peptide bonds, the main types, how peptides differ from proteins, three natural examples, and how synthetic peptides are made and checked.

22 October 2026 · 8 min read

What Are Peptides? A Beginner’s Guide to How They Work

All articles

What Are Peptides? A Beginner’s Guide to How They Work

Peptides vs Proteins: What Is the Difference?

How Peptide Signalling Works in the Human Body

Natural, Synthetic and Therapeutic Peptides Explained

Why Peptides Are Becoming Important in Modern Drug Research

How Peptides Are Named and Classified

What Is a Peptide Receptor?

What Phase 1, Phase 2, and Phase 3 Peptide Trials Mean

Understanding Sample Size in Peptide Clinical Trials

What Does Preclinical Evidence Really Mean?

How Researchers Test Peptide Stability

Common Limitations in Peptide Studies

FDA-Approved Peptides vs Experimental Peptides

How the FDA Evaluates Peptide Medicines

What Does “Not FDA Approved” Mean?

Peptide Regulation in the UK: A General Overview

MHRA, FDA, and EMA: How Their Roles Differ in Global Drug Regulation

Compounded Peptides vs Approved Medicines

Why Some Peptides Are Restricted in Competitive Sport

How WADA Classifies Peptide Hormones and Growth Factors

Are All Peptides Safe? Why the Answer Depends on the Compound

The Risks of Unverified Peptide Claims Online

Why Long-Term Safety Data Matter

Common Warning Signs of Poor-Quality Health Information

Why Celebrity Endorsements Are Not Scientific Evidence

The Risks of Buying Unregulated Injectable Products

How Social Media Has Changed Public Perception of Peptides

BPC-157: Uses, Benefits, Research, Side Effects & Dosage Guide

How BPC-157 Works: Mechanism of Action Explained

TB-500: Uses, Benefits, Research, Side Effects & Dosage Guide

How TB-500 Works: Understanding Its Mechanism of Action

GHK-Cu: Uses, Benefits, Research, Side Effects & Dosage Guide

How GHK-Cu Supports Collagen Research: Mechanism Explained

Tirzepatide: Uses, Benefits, Research, Side Effects & Dosage Guide

Wolverine Stack: Ingredients, Research, Benefits & Safety Guide

Bacteriostatic water explained: what bac water is and how it differs from sterile water

Peptide storage: how to store peptide pens and research peptides

Peptide pens explained: how prefilled research pens are built and labelled

Peptide testing in the UK: how to read a certificate of analysis

What is a peptide? Amino acids, peptide bonds and how peptides are made