Before we look at how to strengthen hair follicles naturally, let’s first understand what exactly hair follicles are and what their purpose is in promoting healthy and strong hair. Simply put, hair follicles, also known as hair roots, are tiny sacs found in the second layer of the skin (called the dermis) which produce hair. … Serum, Dry Damaged Hair, Hair Strengthening, Hair Straightening Serum, Damaged Hair Repair, Reverse Hair Loss, Damaged Hair Follicles, Hair Straightening, Homemade Hair