Hair Loss Forecaster

Hair Loss Follows Predictable Norwood Progression — See Your 2, 5, and 10-Year Forecast

Use the Norwood-Hamilton scale to see your projected hair loss stage over the next decade. Dutasteride blocks 90%+ of DHT — clinically stronger than Finasteride (70% DHT reduction) — and can maintain or even reverse progression.

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Your Hair Loss Projection

Dutasteride — Block 90%+ of DHT

Dutasteride blocks 90%+ of DHT — the hormone driving follicle miniaturization. It's clinically stronger than Finasteride (70% DHT reduction). Most men maintain or improve 1-2 Norwood stages over 5 years with consistent use.

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How this is calculated: Projections are based on Norwood-Hamilton scale progression rates from published dermatology research. Progression speed is adjusted by: age of onset (earlier = faster progression), current stage (stages 3-5 progress faster than 1-2 and 6-7), and family history (paternal and maternal grandfather androgenic alopecia increase risk by 2-3x). Dutasteride efficacy data: clinical trials show 90%+ DHT suppression vs 70% for Finasteride; hair count studies show maintenance in ~90% of men and visible regrowth in ~65% over 2 years. Individual results vary. This calculator is for informational purposes only and does not constitute medical advice. Consult a physician for diagnosis and treatment.

Common Questions About Hair Loss Progression

How fast does male pattern baldness progress?

Without treatment, male pattern baldness typically progresses 1-2 stages on the Norwood scale every 5 years after onset. The rate varies significantly by genetics — men whose fathers reached Norwood 6-7 by 40 typically progress faster. Dutasteride can slow progression in 85-90% of men and produce visible regrowth in 40-60%.

At what Norwood stage should I start treatment?

Treatment is most effective at Norwood stages 2-4 when follicles are miniaturizing but not yet dormant. Dutasteride blocks 90%+ of DHT — the hormone causing follicle miniaturization. Once a follicle is dormant (typically by stage 6-7), treatments cannot revive it — only hair transplantation can restore coverage.

Is Dutasteride better than Finasteride for hair loss?

Clinically, yes. Dutasteride blocks 90%+ of DHT compared to 70% for Finasteride. A 2019 Cochrane review found Dutasteride outperforms Finasteride at 24 weeks. Strut's oral Dutasteride includes the telehealth prescription — no in-person dermatologist visit required.