Knowledge Hub
Practical guides to equipment, hormone health and testing — written for masters competitors, veteran athletes and anyone optimising after 40.
Cold Storage UK — Temperature Control for Research Equipment and Material
Most temperature-sensitive research material is stored at 2–8°C — standard fridge temperature — with some items kept frozen for the long term. Getting storage right is mostly about location, protection from light and knocks, and knowing what to do when the temperature drifts. Fridge Storage Done Properly Middle shelf, not the door. Door shelves swing […]
Solvent Preparation and Cartridge Filling — Equipment Guide
Preparing solvent and transferring it into a pen cartridge is a simple bench procedure, but technique matters: aseptic handling protects the contents, and slow transfer protects delicate material from degradation. This guide covers the equipment and the method. What You Need Sterile 3ml glass cartridges A sterile syringe (2–5ml) with a drawing needle Bacteriostatic water […]
How to Use Your Reusable (Refillable) Peptide Pen (V2, V3, V4 and V5) — Research Equipment Guide
A reusable, refillable peptide pen is a precision dial-and-click delivery device used in laboratory research to dispense reconstituted peptide solutions in accurate, repeatable volumes. This guide covers setup, priming, and maintenance for the Reusable Peptide Pen and Peptide Pen Kit. Written for laboratory and research purposes only. Video: setting up and using your reusable (refillable) […]
How to Fill and Use a 3ml Refillable Peptide Pen Cartridge — Research Equipment Guide
The 3ml sterile glass cartridge is the refillable core of a reusable, refillable peptide pen — it holds your reconstituted solution and slots into the pen body for dispensing. Fill a cartridge, load it, and your reusable pen is refilled and ready. This guide covers filling, loading, and storing the 3ml Sterile Glass Cartridge. Written […]
Travelling With Injector Pens UK — Cold Chain, Flying and Storage
Injector pens, filled cartridges and other temperature-sensitive material need to stay within a controlled range — usually 2–8°C — while you travel. This guide covers choosing an insulated carrier, flying from the UK, and what to do if the cold chain is broken. Keeping 2–8°C in Transit A rigid insulated case with a conditioned ice […]
Peptide Needle Sizes UK — 31G vs 32G, 4mm vs 6mm Explained
What size needle for peptides? For laboratory research work with a 3ml cartridge pen system, the standard peptide needle size is 31G x 6mm, with 32G x 4mm as the shorter, finer alternative. This guide explains what the gauge and length numbers mean, compares the standard sizes, and covers compatibility across pen systems. Written for […]
How to Read a Blood Test Report
This page explains the format of a blood test report, not what your results mean. We give you access to your data — not medical advice. No clinician reviews or comments on your results before they reach you. If you have questions about your own results, take your report to your GP; in an emergency […]
Blood Test Glossary: What Each Marker Is
Plain-English definitions of common blood test markers, grouped by body system, with the panels that include each one.
Peptide Pen Versions UK — V1 vs V2 vs V3 vs V5 Explained
V1, V2, V3 or V5 — what do peptide pen version numbers actually mean, and which should you buy? The short answer for UK research buyers in 2026: the V3 is the current standard, and the V5 is the newest revision, adding an 80 IU dosing scale and a retracting needle. This guide explains what […]
Peptide Pen Cases & Storage UK — Choosing the Right Case
Looking for a peptide pen case in the UK? There are three distinct storage options for pen systems and research glass, and they solve different problems: a pen carry case for everyday protection, a hard vial storage case for glass vials, and a gel-pack cooler bag for temperature on the move. This guide compares all […]
Peptide Pen vs Insulin Pen UK — Differences Explained
A peptide pen and an insulin pen look nearly identical and share the same needle thread — but they are different devices with different cartridges, different dosing scales and a different regulatory status. This guide sets out exactly what separates them for UK research buyers. Optimised Lifestyle does not sell insulin pens, insulin, or any […]
Disposable vs Reusable Peptide Pens — Which Format Fits Your Research?
Both formats dispense with the same unit-dial precision — the choice is about how you work, not which is “better”. This guide sets out what each format does well so you can match the pen to the protocol. Both are supplied for laboratory and research use. What a Disposable Pen Does Well A disposable peptide […]
Testosterone Replacement Therapy — TRT UK Complete Guide
This page is general information, not medical advice. TRT is a prescription-only treatment — only a doctor can assess whether it’s appropriate for you and prescribe it. If you have symptoms that concern you, speak to your GP; in an emergency call 111 or 999. What is Testosterone Replacement Therapy (TRT)? Testosterone Replacement Therapy — […]
HRT for Women UK — Hormones, Blood Testing & Optimisation Guide
Medical Disclaimer: This article is for educational and informational purposes only. It does not constitute medical advice. HRT should only be initiated, managed and monitored under the supervision of a qualified medical professional. Always consult your GP, gynaecologist or menopause specialist before making any changes to your treatment. What is HRT? Hormone Replacement Therapy (HRT) […]
Perimenopause UK — Symptoms, Hormones & Blood Testing Guide
Medical Disclaimer: This article is for educational and informational purposes only and does not constitute medical advice. Perimenopause symptoms overlap with many other conditions. Always consult a qualified healthcare professional — GP, gynaecologist or menopause specialist — for diagnosis and treatment. Do not self-diagnose or self-treat based on this content. What is Perimenopause? Perimenopause is […]