Evidence-based guides on hair loss stages, treatment options, transplant procedures, and recovery.
The vellus-to-terminal hair ratio is a diagnostic marker for androgenetic alopecia. Track this ratio with AI photo analysis for a quantitative AGA severity score.
Vitamin D receptors are present in hair follicle keratinocytes. Levels below 30 ng/mL are linked to increased shedding. Learn to track the recovery.
Viviscal claims hair density improvement from its marine protein complex. Track your density response to Viviscal with objective before-and-after AI analysis.
Over 300 medications list hair loss as a side effect. Log medication start dates alongside density data to identify drug-triggered shedding events.
High calcium and magnesium in hard water may affect hair and scalp health. Track density before and after water filter installation to test the connection.
Wearable devices track the physiological variables that drive hair loss. Correlate HRV, sleep, and stress data from Fitbit, Oura, and Apple Watch with density changes.
Weekly trackers identify treatment response 40% faster than monthly trackers. Follow this detailed weekly protocol to catch early changes and optimize your hair loss treatment.
Understand hair density measurements in your tracking data. Normal scalp density is 100-150 FU/cm2 (200-330 hairs/cm2). Learn what your numbers mean and what to aim for.
A miniaturization ratio above 20% is the primary diagnostic marker for androgenetic alopecia. Learn what miniaturization means, how to detect it, and what your tracking data reveals.
Autumn brings the largest seasonal hair shed. Learn how date-stamped density tracking helps you tell whether a density dip is seasonal variation or treatment failure.
Wnt signaling controls the hair growth cycle. Understanding this pathway helps interpret why AI tracking shows cyclical density patterns even on stable treatment.
Wnt7a is a key anagen initiator. Experimental treatments targeting Wnt7a activation are in preclinical development. This guide explains the pathway and tracking.