Journal

Notes on quality systems, analysis and longevity science.

Each note links to the primary public literature. We cite rather than summarise, and we make no claim of clinical benefit for materials supplied for research use only.

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Quality & Sourcing

Research Methodology

Reading a Certificate of Analysis

What identity, purity and residual solvent figures actually describe.

2–25 min read

Quality & Sourcing

Research Methodology

HPLC and Mass Spectrometry

Two instruments, two questions: what is it, and how much else is present.

2–15 min read

Quality & Sourcing

Research Methodology

The Case for Batch Traceability

Why a representative certificate is not a certificate at all.

2–15 min read

Quality & Sourcing

Research Methodology

Handling and Storage

Temperature, light and time — the three variables that quietly decide integrity.

2–15 min read

Inside the Biology

Randomized Human Trials

The Incretin Literature, Briefly

Where the published trial record currently stands on GLP-1 and multi-receptor agonism.

2–25 min read

The Hypothesis

Mixed / Evolving

The Longevity Research Landscape

A restrained survey of where the published literature currently stands.

2–25 min read

Inside the Biology

Preclinical / Evolving

Mitochondria Are Signalling Organelles

A 16-amino-acid peptide encoded in mitochondrial DNA is reshaping how the organelle is understood.

2–25 min read

Inside the Biology

Mixed / Predominantly Preclinical

Tissue Repair: From Angiogenesis to Cell Migration

BPC-157 and thymosin β4 illustrate both the promise and the evidentiary limits of regenerative peptide research.

2–15 min read

Inside the Biology

Mixed / Evolving

Copper, Collagen and the Biology of GHK-Cu

A naturally occurring human tripeptide, and why its research sits inside a dynamic remodelling system rather than a simple 'more collagen' model.

2–15 min read

Inside the Biology

Randomized Human Trials

Visceral Fat Is Not Just Another Fat Depot

Tesamorelin's randomized trial record shows why scale weight, subcutaneous fat and visceral fat are not interchangeable outcomes.

2–25 min read

The Hypothesis

Mixed / Evolving Human Evidence

NAD+: What Human Trials Actually Show

Raising an NAD+-related biomarker and improving human ageing are different scientific questions.

2–25 min read

Inside the Biology

Preclinical

KPV and the Melanocortin System

A three-amino-acid fragment of α-MSH shows how a signal can outlive the larger molecule it came from -- in cells and animals, not yet in humans.

2–15 min read

The Hypothesis

Preclinical / Evolving

Telomeres, Telomerase and Epitalon

"Longer telomeres equal longer life" is a far simpler equation than the biology it claims to summarize.

2–15 min read

The Hypothesis

Research Methodology

The Evidence Ladder: How to Read Peptide Research

Mechanism, cellular evidence, animal evidence, human observation, controlled trials, replication -- not every compound sits at the same rung.

2–25 min read

Inside the Biology

Established mechanism / Actively evolving definition

What Metabolic Health Actually Means

Metabolic health is not a body-fat percentage. It's how well glucose, insulin, fat tissue, the liver and muscle coordinate -- and a lean person can fail at this just as easily as someone carrying more weight.

5–30 min read

The Hypothesis

Spans Established to Anecdotal -- graded per compound, not as a category

Peptides: Promising Biology, Uneven Evidence

"Peptide" describes a chemical structure, not a level of evidence. Insulin is a peptide. So is a compound with zero published human trials. Treating the category as one thing is the first mistake.

6–45 min read

The Hypothesis

Established for basic biochemistry; hypothesis for a longevity or healthspan benefit from raising NAD+ in humans

NAD+, Mitochondria and the Longevity Conversation: What Are We Actually Trying to Change?

NAD+ biology is real and foundational. The leap from an essential molecule to a proven human-longevity intervention is where the story becomes considerably less certain.

5–30 min read