5-Alpha Reductase: The Enzyme Behind DHT and Hair

5-alpha reductase is the enzyme that regulates how much DHT your body makes, and it explains only half of pattern hair loss. This guide covers what the enzyme does, why inherited follicle sensitivi...

Vellus Hair: What It Is and What It Means for Your Scalp

Vellus hair is the short, fine, barely pigmented hair every scalp carries, and more of it along a widening parting is the earliest visible sign of miniaturisation. This guide explains how vellus, i...

Scalp Androgen Receptors: Why Hair Thins in a Pattern

Scalp androgen receptors are the follicle's hormone switches, and they explain why one hormone level produces a thin crown and a thick back. We cover what the receptors do, why the female picture i...

Clarifying Shampoo: What It Does, When to Use One and How to Choose

A clarifying shampoo is an occasional deep clean for product residue, dry shampoo and hard water film, not an everyday wash. This guide covers what it does, how to choose one, how often to use it, ...

HRT Hair Retention: How to Keep the Hair You Have

HRT hair retention is the half of midlife hair change you can actually control. Hair usually turns finer and drier before density shifts, so breakage becomes the visible problem. Here are the washi...

DHT Levels and Hair: What They Really Tell You

DHT levels are often blamed for thinning hair, yet most people with visible pattern thinning have entirely normal results. Here is what the hormone does, why follicle reactivity matters more, which...

Androgen Sensitivity and Hair: Why Follicles React

Androgen sensitivity is about how strongly hair follicles react to hormones everyone has, not about how much hormone is present. Here is why blood tests come back normal, how to read the pattern on...

HRT Hair Changes: A Realistic Month by Month Timeline

HRT hair changes follow the hair cycle, not the prescription date. This is the realistic month by month timeline: what happens in the first three months, what changes by six, and what hormone thera...

Low Level Laser Therapy for Hair: An Honest Guide

Low level laser therapy is sold as caps, combs and helmets for thinning hair. Here is what the devices do, what the UK rules require of them, and what the evidence honestly supports. Plus how to te...

Hair Care During Gender Affirming Care: A Practical Guide

Hair care during gender affirming care has to keep up with a scalp and a hair fibre that are both changing. This guide covers wash frequency, texture change, growing hair out without breakage, tell...