PDO

PDO hair restoration uses thin, absorbable threads made of polydioxanone that are placed under the surface of the scalp in areas of thinning. These threads act as a scaffold and a stimulus. As your body reacts to the threads, it increases blood flow, recruits growth factors, and produces collagen, elastin, and hyaluronic acid around the follicles. Over several months, the threads slowly dissolve, but the improved environment can help support stronger, thicker hair growth. PDO does not move follicles like a transplant. Instead, it helps the follicles you still have perform better.

The number of sessions depends on your starting point and goals. Some patients notice improvement after a single treatment cycle and then choose occasional maintenance sessions. Others benefit from a series of treatments spaced every 4–6 months, especially in more advanced thinning. During your consultation, your provider will estimate a schedule based on your density, pattern of loss, age, and overall health. The plan is always adjusted over time according to how your hair responds.

Ideal candidates for PDO are men and women in the early to moderate stages of thinning who still have visible hair in the treatment area. PDO is well-suited for those whose hair is getting finer, weaker, or more sparse but not completely gone. You should be in generally good health and willing to follow a broader plan that may include medical therapies or lifestyle changes. PDO is less effective in areas that are completely bald or scarred with no active follicles.

Discomfort is usually minimal and short-lived. Local anesthetic is used to numb the scalp before threads are placed, and many people feel mostly pressure or a pulling sensation rather than sharp pain. After the procedure, some patients experience a temporary heavy or tight feeling, mild soreness, or a dull headache. Over-the-counter pain relievers are often enough to manage these symptoms. Most people return to light daily activities within a day.

PDO threads themselves typically remain active for several months before fully dissolving. The improvements they trigger—like better blood supply and collagen support—can benefit hair for six months or longer. Longevity depends on factors such as your age, genetics, underlying hair loss drivers, and whether you maintain other supportive therapies. Many patients choose periodic maintenance treatments once or twice a year to sustain or enhance their results.

PDO can be an excellent option for patients who are not ready for surgery or who have early thinning that does not yet require a transplant. It can slow progression, thicken existing hair, and sometimes delay the need for surgery. However, in areas that are already bald with no active follicles, PDO cannot create new follicles. In those cases, a hair transplant may be necessary to restore coverage. Often, PDO and transplants are used together as part of a long-term plan.

Most side effects are mild and temporary. They can include redness, swelling, bruising, tenderness, or a sense of tightness in the treated areas. Infection or significant complications are rare when the procedure is performed in a clean environment by trained professionals who follow medical protocols. Your clinician will review your history to minimize risks and give you clear aftercare instructions to support smooth healing.

Microneedling and growth factor injections work mainly by stimulating the surface of the scalp and delivering concentrated signals to follicles. PDO adds a physical scaffold under the skin that continues to stimulate the area as the threads dissolve. It often includes microneedling and growth factors as part of the same session. Think of PDO as a layered approach: surface activation plus deeper structural support around the follicles.

Yes. In many cases, combining PDO with other therapies gives the best results. Common combinations include PDO with oral or topical medications, low-level laser therapy, growth factor injections, exo therapy, or even a prior or future hair transplant. Your provider will help you build a plan that makes sense for your stage of hair loss, tolerance for medications, and budget.

The decision starts with a thorough consultation. Your clinician will examine your scalp, review your medical history, discuss your goals, and explain all options, including PDO, medications, non-surgical therapies, and surgical procedures if appropriate. PDO is usually recommended for patients who want a minimally invasive, medical treatment to support and enhance existing hair. If that goal matches where you are in your hair loss journey, PDO may be a very good fit.