Are Custom Hair Systems Suitable for Women with Fine or Thin Hair? Do you have fine or thin hair and wish it looked fuller? You are not alone. Many women in San Jose, California  struggle with hair that feels flat, weak, or see-through. The good news is that custom hair systems  can be a great solution—even if your hair is very fine. Let’s take a closer look at how custom hair systems work and why they are safe and effective for women with thin hair. What Is Fine or Thin Hair