Saw Palmetto Saw palmetto is an extract derived from the berries of the Serenoa repens plant and is sold as an oral...
Scab Formation (Crusting) Scab formation, also called crusting, describes the dried layer of blood, serum, inflammatory fluid, and cellular debris that forms over...
Shedding Phase The shedding phase, often called the telogen phase, is the resting stage of the hair growth cycle when hairs detach...
Shock Loss Shock Loss is the temporary shedding of existing hairs that can follow hair transplant surgery, scalp injury, or sudden changes...
Sapphire Blade A Sapphire Blade is a surgical instrument fashioned from synthetic sapphire crystal that is used primarily to create recipient sites...
Sapphire FUE Sapphire FUE is a modification of the standard follicular unit extraction (FUE) hair transplant technique in which the surgeon creates...
Single-Hair Graft Single-hair grafts are individual follicular units containing a single hair that are surgically harvested and transplanted into the recipient area...
Sebum Sebum is a lipid-rich fluid secreted by sebaceous glands that helps lubricate and protect the scalp and hair. Made mainly...
Safe Donor Zone The Safe Donor Zone refers to the region of the scalp—typically in the mid-occipital and lower parietal areas—where hair follicles...