The best approach is positioning yourself as a “specialist with breadth:” Cover all of the necessary skills needed for hairstyling, but if you have particular areas of expertise (e.g., a good knowledge of threading eyebrows and upper lips, or being well-versed in manicures and pedicures), make note of them in your skills and summary sections. This positions you as someone with more range than other applicants, and makes you more attractive as a job candidate.