How to Find the Best Hair Extensions For Thin Hair, According to Experts

Bellami Silk Seam Hair Extensions ($190)

Fitzsimons says his favorite type of extensions for thin hair are Bellami's Silk Seam Hair Extensions, which are 30 percent thinner than classic clip-ins. "These extensions lay flat on your head, which allows them to blend seamlessly with your natural hair," he says. They're made with high-quality, 100 percent Remy human hair and are available in a variety of colors. They're sold by length and weight, allowing you to customize your extensions to your liking and hair type.