As the proprietor of a male grooming salon you may be required by law to apply for a massage and special treatment licence from your local authority environmental health department, depending on the range of treatments you offer. 'Special treatments' include massage, manicure, acupuncture, tattooing, cosmetic piercing, sunbeds, electrolysis and treatments like semi-permanent skin colouring and saunas. The fee charged for the licence generally depends on the range of treatments offered. The therapist who provides the special treatments may also need to be registered with the council - this varies depending on where you are located. Your local authority will be able to give you details of the licensing requirements.
If you offer treatments using lasers or intense pulsed light systems in Northern Ireland you'll need to register with the Regulation and Quality Improvement Authority (RQIA). The registering authority in Wales is the Healthcare Inspectorate Wales (HIW). You don't need to register if you're based in England or Scotland.
Other things to consider
You might be planning to give your customers complimentary drinks such as beer or even champagne. If so, you must make sure you have the appropriate licences to supply alcohol. In England, Scotland and Wales you may need a premises and a personal licence - you can find out more about these from your local licensing authority. Alcohol licences are granted by county courts in Northern Ireland and by Licensing Boards in Scotland.
If you plan to play background music in the salon you will need to obtain a Music Licence from PPL PRS Ltd. There is an annual fee for this which you can pay online on the PPL PRS website.
Businesses which keep records of individuals' personal details may need to register as data users with the Information Commissioner's Office (ICO). There is a small fee for registration. For further information, visit the ICO website. From May 2018 the General Data Protection Regulation has introduced additional protection for personal data.