Norwood–Hamilton Scale for Hair Loss

The Norwood–Hamilton Scale is a widely used classification system that describes how male pattern baldness (androgenetic alopecia) progresses. Stages 1–4 are generally considered early; above stage 4 is more advanced and harder to treat conservatively.

While the scale is not a medical diagnosis, it’s a helpful guide to set expectations and build a realistic plan. Identifying your stage early usually gives you more options.

Is It Too Late to Treat Hair Loss?

Not necessarily. The scale offers a useful snapshot of where you are and helps you choose appropriate options. Earlier stages typically respond better to non-surgical approaches; later stages often need a different strategy and expectations.

Norwood Stages 1–2

Mild recession at the temples and, in some men, subtle thinning at the crown. Many remain stable for years with the right routine.

• Focus: early intervention and scalp/follicle support.
• Common tools: topical agents (e.g., minoxidil), supportive shampoos (e.g., ketoconazole), scalp serums (e.g., KGF-based), lifestyle optimisation, and targeted supplementation.
• Goal: slow shedding, maintain density, and support thicker-looking growth.

Drug-free support such as HR23+ can be a useful foundation for early stages. See also: What is DHT?

Norwood Stages 3–4

More pronounced temple recession and a visible crown thin/bald patch. This is still considered relatively early but requires consistency and realistic expectations.

• Focus: stabilisation and visible improvement where possible.
• Common tools: topical minoxidil, prescription options (where appropriate), supportive serums/shampoos, microneedling/LLLT, and nutritional support (e.g., HR23+).
• Goal: reduce further loss and thicken existing hair. Some regrowth may be achievable with diligent routines.

Many men in this range see the best results from a combined plan rather than a single product. Explore: Treatment options for hair loss.

Norwood Stage 5 and Above

Extensive recession with a larger bald area at the crown; the bridge of hair between them is thinning or gone. At this point, non-surgical approaches may offer limited cosmetic benefit.

• Focus: realistic goals and long-term maintenance.
• Common tools: consultation for hair transplantation, camouflage strategies (cuts, fibres), and scalp health maintenance.
• Note: drug-free supplements (including HR23+) are unlikely to deliver strong visible changes once loss is this advanced, though they may support scalp/hair quality.

Drug-Free Support for Early Stages

For Norwood 1–4, many men incorporate nutritional support into their routine. HR23+ is a premium, drug-free supplement designed to help reduce shedding and support stronger, fuller-looking hair when used consistently.

How to Use the Norwood Scale

• Match your current pattern to the closest stage in the diagram.
• Set expectations: earlier stages respond best to conservative care.
• Create a plan you can follow for 3–6 months before judging results.
• Consider a consultation with a GP, dermatologist, or trichologist to tailor your approach.