Regrowthy Editorial
The science of hair.
Peer-reviewed research, honest product comparisons, and protocols that hold up under scrutiny.
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Featured Story
Stress and Hair Loss: The Science Behind Telogen Effluvium
Stress doesn't just feel bad - it physically pushes hair follicles into their resting phase. Here's the biology of stress-induced hair loss and how to reverse it.
The 15 Biggest Hair Loss Myths - And the Scientific Truth
From "hats cause baldness" to "only old men lose hair" - we've compiled the 15 most persistent hair loss myths and the actual scientific evidence behind each one.
Editor’s Picks
Hand-selected- 01
Hair Loss Science
How DHT Causes Hair Loss (And How to Block It)
11 min read - 02
Results & Progress
Hair Regrowth Timeline: What to Expect Month by Month
9 min read - 03
Treatment Guides
How to Choose a Hair Loss Treatment: A Decision Framework
9 min read - 04
Conditions & Hair Types
Female Pattern Hair Loss: A Complete Guide for Women
10 min read - 05
Ingredient Science
Saw Palmetto for Hair Loss: How This DHT Blocker Actually Works
9 min read - 06
Lifestyle & Wellness
The Best Diet for Hair Growth: Foods That Feed Your Follicles
10 min read - 07
Results & Progress
Why Is My Hair Shedding More, Not Less, on Treatment?
8 min read
Latest
Recently published
When Will You See Results From Laser Therapy?
Wondering how long laser cap results actually take? Here is the honest, week-by-week timeline of what happens at each stage, from the first month where nothing looks different to the six month mark where your before and after comparison finally becomes obvious.
Your First Month of Hair Loss Treatment: What to Actually Expect
Thirty days into a new hair loss routine, the mirror rarely shows much. Here is what is actually happening beneath the surface during month 1, and why that quiet is normal.
How to Take Progress Photos for Hair Growth That Actually Show Change
Your eyes adjust to gradual change, which is exactly why you need a real system for hair growth progress photos: the same angles, light, and schedule every time. Here is how to take photos that actually reveal what is happening on your scalp.
Is Hair Loss Reversible? Separating Myth From Fact
Is hair loss reversible, or is that just marketing talk? Here is the honest, evidence-based breakdown of which types of hair loss can be reversed, which can only be slowed, and which reversing hair loss myths you can finally stop believing.
Does Masturbation Cause Hair Loss? The Science Behind the Myth
The claim that masturbation drains testosterone and triggers baldness has spread across forums for years, but the actual endocrinology tells a very different story. Here's what causes pattern hair loss, and why your sex life has nothing to do with it.
Does Dyeing or Bleaching Hair Cause Permanent Hair Loss?
Bleach can wreck your hair's texture, but does it actually destroy your follicles? Here's what separates cosmetic shaft damage from real, permanent hair loss.
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From the Archive
134 articles