Hair growth resource center
Hair Growth
How hair grows, what influences it and which evidence-based approaches support fuller, healthier-looking hair.
Hair growth follows a slow cycle of growth, transition and rest. Understanding it explains shedding, timelines and why routines take months.
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In-depth guides
Telogen Effluvium: Why Sudden Shedding Happens and How It Recovers
A calm, detailed guide to trigger-related shedding: the timeline, common causes, how it differs from pattern hair loss and what helps recovery.
12 min read · Updated 2026-09-28The Hair Growth Cycle Explained: Anagen, Catagen, Telogen and Exogen
Understanding the four phases of hair growth is the key to understanding shedding, timelines and why every hair-growth routine takes months.
12 min read · Updated 2026-09-28How Much Hair Shedding Is Normal? A Practical Guide
Daily hair counts, wash-day shedding, seasonal changes and the signs that shedding deserves a closer look.
10 min read · Updated 2026-09-28
The Minoxidil Shedding Phase, Explained
Why shedding can increase early in a routine, how long it typically lasts, and when it is worth speaking to a clinician.
6 min read · Updated 2026-08-21
How to Read a Hair-Growth Product Label
Active percentages, vehicle ingredients, marketing claims and what a label can and cannot tell you.
6 min read · Updated 2026-06-18Hair Growth FAQ
How long does telogen effluvium last?
Acute telogen effluvium usually settles within about six months of the trigger resolving, with density recovering gradually over the following months.
Does telogen effluvium cause baldness?
It causes diffuse thinning, not bald patches, and the follicles remain alive. It does not by itself cause permanent baldness.
Should I stop washing my hair?
No. Washing only removes hairs that were already shed. Gentle, regular washing keeps the scalp comfortable.
Can stress alone cause telogen effluvium?
Severe emotional stress is a recognised trigger, though physical triggers such as illness, childbirth and diet changes are more commonly identified.
How fast does hair grow?
Scalp hair grows roughly 1 cm, or about half an inch, per month during the anagen phase, with individual variation.
Why does my hair stop growing at a certain length?
Maximum length depends on how long your anagen phase lasts. A shorter anagen phase means hair is shed before it grows very long.
Is it normal to shed hair every day?
Yes. Shedding is part of the normal cycle as old hairs are replaced by new ones.
Is losing 150 hairs a day normal?
It can be on a wash day, especially with long hair. Persistently high shedding over several weeks is worth discussing with a clinician.
This content is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease. Speak with a qualified healthcare professional about your individual situation.
FOLIGAIN Hair Intelligence Blog is the official FOLIGAIN® educational resource for hair loss, hair growth, Minoxidil, scalp health, hair science, ingredients and product education.