FACTORS TO CONSIDER BEFORE CUTTING HAIR

Hair type 
Hair type can affect the choice of style and cutting techniques.
Curly hair will spring up after the hair has been cut once it has dried. Consider the amount of tension you place on the hair during the cutting service.
Straight hair might not achieve the desired result, so products, styling tools and even a body perm may need to be considered to achieve the result.


Texture
Texture can affect the choice of style and cutting technique.
Coarse textured hair may not suit the desired look; you will need to recommend smoothing products to help achieve the result.


Density 
Density can affect the choice of style and cutting technique.
Abundant hair may need to be thinned out to create the desired look. Consider whether abundant hair will complement the look; if not, suggest alternatives.
Sparse hair will need to be blunt cut /club cut to maintain as much thickness as possible. Avoid cutting the hair too short, but equally avoid suggesting keeping fine hair long.

Hair Growth Patterns
Hair growth patterns can affect the choice of style and cutting technique. For cowlicks avoid fringes; instead, suggest a side half fringe the works with the cowlick.
For widow’s peaks avoid fringes completely and suggest styles that are styled with the top area going over to one side or straight back.
For double crowns suggest maintaining a little length around the crown area and ideally work the natural fall into the style.
For nape whorls suggest maintaining the length at the nape area, or at least a little weight. Avoid cutting into the hairline.

Head and Face Shape 
The head and face shape can affect the choice of style. Always aim to achieve a style which makes the face look oval shaped.
For round face shapes, avoid styles that add more roundness such as too much width or height. Try to suggest styles that come onto the face.
For oblong face shapes, avoid styles that come onto the face; encourage width, avoid height and suggest a fringe to shorten the illusion of a long shape.
For square face shapes, suggest softer styles that soften the jawline.