Hair Loss Science: DHT, AGA & Follicle Miniaturization
Reviewed by [Reviewer Name, MD] | Last reviewed: August 2026 | Editorial policy
Understanding the biology of androgenetic alopecia helps you make informed decisions about treatment. This section covers the mechanisms behind hair loss. How DHT drives miniaturization, how pattern baldness progresses, and what the hair cycle means for treatment timing.
Hair Science Articles
- DHT and hair loss: How dihydrotestosterone drives follicle miniaturization in AGA
- Norwood scale: Stages I-VII of male AGA; what each stage looks like and means for treatment
- Shedding vs. hair loss: Normal shedding vs. true AGA miniaturization; why the distinction matters on finasteride
Related: How finasteride works | What is finasteride | Finasteride for AGA