Norwood-Hamilton Male Pattern Baldness Classification Standard:

Grade

Hair Loss Characteristics

COZING-C300 Applicability

I-II

Slight hairline recession, no significant baldness

✅ Fully applicable

III

Noticeable hairline recession (M-shaped), mild thinning on the crown

✅ Optimal results

IV

Expanded hair loss on the forehead and crown, with a residual band of hair in between

✅ Applicable, but results may slow

V

Near fusion of frontal and crown bald areas, only sparse band of hair remains

⚠️ Partially effective (requires combined therapy)

VI-VII

Only occipital and peri-auricular hair remains, complete baldness

❌ Not applicable (requires hair transplant/medication)