Here are the best YouTube channels for learning dermatology, broken down by audience and purpose:

1. Osmosis (Osmosis from Elsevier) The go-to channel for medical students. Covers common dermatological conditions with animated videos, clear pathophysiology, and clinical pearls. Great for exam prep (USMLE, PLAB, etc.).

2. Ninja Nerd Excellent whiteboard-style lectures on skin conditions, integumentary system, and related pharmacology. Very thorough and popular among med students.

3. Dermatology Explained Dedicated dermatology channel pitched at residency level, covering conditions of skin, hair, and nails. Good for students who want more depth than Osmosis.

4. Prof Asher's Dermatology-on-line-teaching Based on Rook's Textbook of Dermatology (9th edition). Covers dermatology, dermatopathology, dermatosurgery, and aesthetic derm. One of the most academically rigorous free channels (~20K subscribers).

5. American Academy of Dermatology (AAD) The official AAD channel has clinical lectures, case presentations, and updates on guidelines and emerging therapies. Authoritative and peer-reviewed.

6. UCSF Dermatology Academic grand rounds, case discussions, and specialty lectures from a top U.S. academic program.

7. DermEngine / Dermoscopy Made Simple Focuses specifically on dermoscopy skills, lesion analysis, and melanoma recognition. Essential if you want practical pattern recognition.

8. Dermcast.tv (Skin Cancer Foundation) High-quality procedural and clinical content, particularly around skin cancer and Mohs surgery.

Tip: Feedspot's list of 70 Dermatology YouTubers is a solid curated resource if you want to explore further beyond the big names. For board-focused Q-bank study alongside videos, pairing Osmosis with Durham Q Bank or AAD Boards Prep Plus is a popular strategy among derm residents.