How to match laser hair removal wavelength and cooling to different Fitzpatrick skin types for safe, effective treatment across a diverse UK client base.
The Fitzpatrick scale classifies skin by its response to UV light, from type I (very fair) to type VI (deeply pigmented). In laser hair removal, skin type determines how much energy is safe and which wavelength is appropriate, because darker skin has more melanin that can absorb energy intended for the hair.
Lighter skin types tolerate a wider range of wavelengths and higher energy settings, which makes treatment faster and generally easier. Most professional systems treat these types comfortably with standard settings.
Darker skin needs longer wavelengths (808nm and above) and strong contact cooling to protect the skin while still reaching the follicle. Treating these types safely requires a system with adjustable energy and effective cooling — turning away these clients means leaving significant revenue on the table in a diverse UK market.
Choosing a machine that can treat the full Fitzpatrick range you expect to see lets you serve the whole market rather than a subset. This is not just good practice — it is good business, because it widens your client base and removes the awkwardness of refusing clients.