What growth factors are in PRP?

If a PRP explanation mentions growth factors, it helps to know what the sources actually say about them.

What platelets carry

According to my.clevelandclinic.org, platelets contain a wide variety of growth factors, which improve healing and stimulate hair growth. my.clevelandclinic.org adds that concentrating the platelets also concentrates the growth factors. That second point ties the amount of growth factors to how the platelets are concentrated.

Where this comes up in a hair restoration course

The question tends to arrive at the first consultation, when the explanation of the procedure meets the first look at the evidence. The article on platelet-rich plasma and younger-looking skin gives a dermatology view of the topic. For the research side, a review of platelet-rich plasma in aesthetic dermatology covers current evidence and future directions.

Narrowing from skin to hair loss research

Hair is the narrower case. A comparison of PRP with PRP microneedling in androgenetic alopecia looks at one specific form of hair loss and is a good document to bring to a consultation.

A growth factor pitch without evidence behind it

A pitch that names growth factors but cannot say which evidence it rests on is the sign to ask for the evidence before booking.