PRP contains a range of growth factors that speed tissue repair. As some types of hair loss result from damage to hair follicles, researchers initially hypothesized that PRP could help regrow hair by reversing the process that occurs in androgenetic alopecia.

Since then, PRP has become a popular method of restoring hair growth. Doctors have also used PRP to treat injuries to the tendons, muscles, and ligaments, such as those that people sustain during sporting activities.

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The following steps are an example of a common approach to PRP injections for hair loss:

1. A medical professional draws blood from a vein in the arm.

2. They place the blood sample in a centrifuge.

3. The centrifuge spins the blood, separating its components.

4. A medical professional extracts the platelets using a syringe.

5. The professional injects the platelets into targeted areas of the scalp.

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The entire process may take about 1 hour, and several sessions may be necessary. After receiving PRP treatment, a person can usually return to their regular activities without any limitations.