Hair Transplant Nurse/ Technician Interview Question:

What is companion Layer?

Submitted by: Muhammad

In between the outer root sheath (ORS) and the inner root sheath (IRS) of the hair follicle lies the companion layer, which is a single layer of flattened cells. The companion layer acts a slippage plane to allow the IRS-sheathed hair shaft to move up in conjunction with Henle's layer while the ORS remains stationery.
Submitted by: Muhammad