Conventional transplantation
Conventional follicular-unit transplantation moves follicles from a donor region—usually the back and sides of the scalp—to areas of loss. It can create lasting cosmetic improvement, but it redistributes a finite supply rather than generating more follicles.
Results depend on donor density, hair characteristics, the extent and progression of loss, surgical planning and clinical execution. Moving too much donor hair can leave visible depletion and fewer options for future procedures.
Follicle multiplication and regeneration
Follicle multiplication or de novo regeneration aims to produce additional hair-forming material from a small sample or from engineered cells. Its intended advantage is expansion of the available donor supply.
Cell-injection approaches intended to thicken miniaturising follicles occupy a separate category. They may be described as hair cloning, but they do not necessarily add new follicular organs.
Evidence and availability
Hair transplantation is an established clinical procedure with decades of practice. Hair cloning remains developmental: relevant cell therapies have reached human studies, while dependable creation and implantation of abundant new follicles remains preclinical.
A registered study or company milestone is not equivalent to an approved treatment. It indicates that a specific hypothesis is being tested under a defined protocol—or, for company-reported work, that the developer says testing is beginning.
Potential combination of the approaches
If follicles or follicle-forming units can be manufactured consistently, transplantation techniques may still be needed to place them at natural angles and densities. A future product could therefore expand donor supply while retaining a surgical delivery step.
Follicle regeneration may complement transplant expertise. The relevant questions are whether the created units behave like normal follicles and whether production and placement can be scaled safely.