PRP Injections and Hair Growth

The Role of PRP in Promoting Hair Growth

Platelet-rich plasma therapy has emerged as a groundbreaking solution for individuals seeking effective hair-loss therapies. The role of PRP in promoting hair growth lies in its ability to use the patient’s own blood to deliver a high concentration of platelets and growth factors directly to areas of the scalp. This innovative approach stimulates dormant hair follicles, enhances the hair growth cycle, and supports scalp health.

Platelet-rich plasma therapy is a revolutionary solution that uses healing components derived from a patient's own blood to provide a non-surgical intervention with various applications.  Hair loss treatment is one of the most popular, as it delivers a high concentration of platelets and growth factors to targeted areas of the scalp.

The use of autologous platelet-rich plasma (PRP) injections has exploded in popularity over the last decade due to its noninvasive nature and the success many patients have achieved with platelet-rich plasma therapy. PRP injections fall under the umbrella of regenerative medicine, which includes treatments such as stem cell therapy.

By leveraging the body’s natural healing processes, PRP therapy offers significant improvement in hair thickness, hair count, and overall quality of life for those dealing with conditions such as androgenetic alopecia or female pattern hair loss. With its minimal risk of allergic reactions and proven effectiveness, PRP is becoming a preferred treatment option for addressing various forms of hair loss.

What is PRP and How Does It Work?

Understanding Platelet-Rich Plasma

Platelet-rich plasma (PRP) is a cutting-edge treatment derived from the patient’s own blood, making it a safe and natural option for promoting hair growth. During a PRP procedure, a small amount of blood is drawn from the patient. This blood is then processed to separate its components, including red blood cells, platelet-poor plasma, and the highly concentrated platelet-rich plasma. PRP contains a high concentration of platelets, along with essential growth factors such as transforming growth factor and epidermal growth factor, which play a crucial role in tissue repair and regeneration.

The preparation process ensures that only the most effective blood components are used, delivering regenerative medicine benefits tailored to the patient’s needs. This high concentration of platelets helps stimulate cell proliferation and tissue regeneration, making PRP an effective tool for addressing hair loss and improving scalp health.

How PRP Works for Hair Regeneration

PRP works by targeting dormant hair follicles and reactivating them to promote new hair growth. When injected into areas of the scalp affected by hair loss, PRP enhances blood flow and delivers critical nutrients to hair follicles. This process strengthens the dermal papilla, a key structure responsible for hair growth, while supporting the natural hair growth cycle.

The effects of PRP also include boosting vascular endothelial growth factor and other signaling molecules that encourage tissue repair and scalp rejuvenation. By improving blood supply and addressing underlying damage, PRP helps extend the active growth phase of the hair cycle, leading to thicker, healthier and an increased number of hairs over time.

PRP and Hair Follicle Stimulation

PRP therapy directly invigorates hair follicles. Platelets release growth factors to awaken dormant follicles, prompting them to enter the growth phase. This activation can result in enhanced hair density, hair regrowth and thickness over time.

PRP And Blood Supply To Hair Follicles

PRP hair treatments can enhance the blood supply to hair follicles. The growth factors in PRP promote the formation of new blood vessels, improving the delivery of oxygen and nutrients to the scalp. This increased blood flow helps to nourish hair follicles, supporting healthier hair growth.

PRP to Reduce Inflammation

PRP helps reduce inflammation around hair follicles, which can contribute to hair thinning. These anti-inflammatory properties create a healthier environment for hair regrowth. PRP treatment can be particularly beneficial for patients with hair loss due to inflammatory scalp conditions.

PRP for Cellular Repair

One of the benefits of PRP hair treatment is its ability to promote cellular repair. PRP growth factors aid in regenerating damaged cells within the hair follicles. This cellular repair process helps restore normal hair follicle function, improving hair growth.

PRP to Promote Collagen Production

PRP injections boost the scalp's collagen production, strengthening hair follicles and supporting scalp health. This benefit supports the scalp's structural integrity, making it conducive to robust hair growth.

Key Benefits of PRP for Hair Loss

Significant Improvement in Hair Quality

One of the most notable benefits of PRP therapy is its ability to deliver significant improvement in hair quality. Patients often experience increased hair thickness, hair diameter, and hair count following PRP sessions. This is due to the treatment’s ability to nourish hair follicles and encourage their activity, resulting in fuller hair and noticeable new hair growth.

PRP therapy also helps minimize hair shedding, a common concern for individuals experiencing hair loss. By improving scalp health, PRP supports long-term hair regeneration and maintains optimal scalp conditions. These improvements enhance not only hair appearance but also the patient’s confidence and quality of life.

Why PRP is a Safe Option

PRP therapy is considered a safe and effective treatment option because it relies on the patient’s own blood. This eliminates the risk of allergic reactions or complications associated with foreign substances. During preparation, platelet-poor plasma is carefully separated to reduce the risk of adverse effects, ensuring a safe experience for patients.

Additionally, PRP therapy supports the body’s natural healing processes. By leveraging the regenerative capabilities of platelets and growth factors, the treatment accelerates the healing process at the injection site while delivering long-lasting results. This makes PRP a preferred choice for those seeking hair-loss therapies with minimal risks and maximum effectiveness.

Conditions and Hair-Loss Types Treated by PRP

PRP therapy is versatile and effective for treating various conditions and types of hair loss. One of its most common applications is the treatment of androgenetic alopecia, a hereditary condition commonly called male and female pattern baldness. PRP can also treat male pattern baldness and female pattern hair loss, two prevalent conditions that cause thinning hair and receding hairlines. By targeting the underlying causes of these conditions, PRP delivers significant improvement in hair growth and density.

In addition, PRP therapy is effective for treating alopecia areata, an autoimmune disorder that causes patchy hair loss. Patients with medical conditions that contribute to hair loss can also benefit from PRP as part of a comprehensive treatment plan. By stimulating dormant hair follicles and enhancing the scalp’s ability to support hair growth, PRP offers a promising solution for a wide range of hair-loss challenges.

The Different Types Of Hair Loss

Hair loss falls into four main categories:

• Androgenetic Alopecia: The most common form is commonly called male or female pattern hair loss. It begins with the slow thinning of hair, usually at the temples and crown, becoming more noticeable with age. Most of the research on promoting hair growth with PRP focuses on this category.
• Alopecia Areata: An autoimmune disorder where the body mistakenly attacks hair follicles, resulting in patchy hair loss.
• Telogen Effluvium: This condition occurs when a significant number of hair follicles become dormant simultaneously. Stress, illness or major life changes can trigger it.
• Traction Alopecia: Resulting from prolonged tension on the hair, usually from tight hairstyles like braids or ponytails. This type of hair is reversible if caught early.

Common Reasons Behind Hair Loss and Thinning

Hormone Effects on Hair:

Estrogen increases the time hair spends in the growing phase, so when estrogen declines, hair loses these protective effects and starts to thin and shed.

Androgenic effects of testosterone can also be intensified when testosterone’s metabolite, dihydrotestosterone (DHT), can produce progressively weakened hair due to the follicle’s failure to thrive. DHT shrinks hair follicles, making it impossible for healthy hair to survive.

Both men and women experience the hormonal process of testosterone converting to DHT, which harms hair follicles. Under normal conditions, women have a minute fraction of the testosterone that men do, but even a lower level can cause DHT-triggered hair loss in women.

Stress:

Stress molecules like cortisol can target and damage the hair follicle. Many women in their 20s and 30s start losing hair due to stress-related issues.

Anemia:

While hair loss is not the most common symptom of iron-deficiency anemia, it occurs in approximately half of those with low ferritin levels. Hair follicles actually hang on to ferritin. When the body is deficient in iron, it can pull ferritin from places like hair follicles, deemed not as necessary as, let’s say, red blood cell production. The result is diffuse hair loss.

Thyroid Hormone:

In hypothyroidism, hair tends to be dry, brittle, dull, and diffusely thin; even eyebrow hair can fall out. When the reverse is accurate, and there’s too much thyroid hormone, hair will also fall out.

Vitamin D:

Vitamin D helps create new hair follicles by initiating the anagen phase and regulating the expression of genes required for hair follicle cycling. When the body lacks enough vitamin D, several symptoms, such as hair loss, can occur.

Vitamin B12:

To keep hair follicles active, you need healthy blood flow. Oxygen-rich red blood cells feed the hair follicles. Vitamin B12, also known as cobalamin, does precisely that. It promotes healthy hair growth by helping produce red blood cells.

PRP Treatment Protocol and Techniques

Steps in PRP Sessions

The PRP treatment protocol begins with a blood draw, during which a small amount of blood is collected. Think of it almost like a blood test. Make sure you eat a good meal before your appointment. After drawing your blood, our staff will place it in a centrifuge for processing. This device, which spins the vial at high speed, separates your blood into concentrated platelets and red blood plasma needed for hair regeneration. Once prepared, the PRP produced in the centrifuge contains hundreds of growth factors and other components, including the presence or absence of leucocytes and platelet-activating agents, which define different types of PRP. The effectiveness of tissue regeneration depends on the concentration of plasma platelets. Several studies have indicated that platelet concentration must be two to six times higher than normal to achieve PRP effectiveness in treatment. The PRP produced is rich in growth factors, including Vascular Endothelial Growth Factor (VEGF), Fibroblast Growth Factor (FGF), and Epidermal Growth Factor (EGF). These platelet-derived growth factors play a crucial role in hair growth by prolonging the anagen growth phase. They may also increase hair thickness.

Although there is no standard method of PRP preparation, all protocols follow a generic method. They start by collecting a blood sample of approximately 10-60 mL and placing it into tubes containing an anticoagulant.

PRP sessions are minimally invasive as the prepared solution is injected into targeted areas of the scalp using fine needles and strategically placed to maximize effectiveness. You can return to daily activities shortly after your appointment. Most patients require multiple treatment sessions, spaced several weeks apart, to achieve optimal results.

Combining PRP with Other Hair-Loss Therapies

To enhance outcomes, PRP therapy can be combined with other hair treatments, such as topical minoxidil or oral finasteride. VIVVA augments PRP with Nutrafol to combat androgenic alopecia. These medications work synergistically with PRP to further stimulate hair growth and prevent hair shedding.

To ensure the best results, we monitor the healing process and adjust the treatment protocol as needed. This personalized approach ensures that each patient receives the most effective combination of therapies for their unique hair-loss concerns.

Scientific Evidence Supporting PRP Therapy

Research and Clinical Trials

Various studies and clinical trials in hair loss patients receiving PRP injections indicate significant hair regeneration. However, scientists have not reached a consensus on how frequently patients should receive platelet-rich plasma. A 2014 study found that after about 4 PRP treatments, patients with male-pattern baldness experienced approximately 30% more hair growth in previously thin areas. A 2017 Italian study also found that men undergoing PRP injections had thicker and more hair in the treatment areas. Studies have demonstrated a significant improvement in hair growth, including increased hair count, hair diameter, and overall scalp health. A pilot study examining the roles of vascular endothelial growth factor and the dermal papilla found that PRP enhances the natural hair growth cycle by promoting tissue repair and cell proliferation.

Systematic reviews of PRP therapy, available on platforms like Google Scholar, highlight its success in treating androgenetic alopecia, female pattern hair loss, and other conditions. These findings underscore PRP’s potential as a non-invasive alternative to more invasive medical treatments or plastic surgery. Ongoing clinical trials continue to explore the long-term benefits of PRP, making it one of the most promising options in regenerative medicine for hair loss.

Generally, male and female patients show improvement within 3 to 4 months, with a regrowth rate of 30% to 40%. If your hair loss is recent, you will see better hair regrowth with PRP injections. It is more difficult to “wake up” hair follicles if hair loss is over five years old.

Scientists are unsure of the mechanism at work when platelet-rich plasma (PRP) is used to regrow hair. However, the theory is that platelets, when injected deep into the scalp, reach the base of hair follicles, where they stimulate hair growth through specialized dermal papilla cells. These cells have a critical role in promoting hair growth.

VIVAA’s typical procedure for restoring hair with PRP involves a course of monthly injections for three to four months and then maintenance treatments every four to six months. We place the platelet-rich plasma injection directly into the area of your scalp that has suffered hair loss. Factors such as the amount of hair you have, its pattern of loss, your age, genetic makeup and hormone levels determine the frequency and length of treatment.

PRP Compared to Other Hair-Loss Therapies

Compared with other hair-loss therapies, PRP stands out for its ability to deliver significant results without surgical or cosmetic procedures. Unlike topical minoxidil or oral finasteride, which may require consistent long-term use, PRP offers more durable outcomes by directly stimulating dormant hair follicles and improving blood supply to the scalp.

PRP’s impact extends beyond hair regeneration, as it also improves quality of life by boosting confidence and reducing the emotional toll of hair loss. By combining PRP with other regenerative medicine techniques, patients can achieve fuller hair while maintaining scalp health and preventing future hair shedding.

Prepping Your Scalp For PRP Treatments

Before beginning a PRP hair treatment, you must prepare your scalp by cleaning it to remove impurities or excess oil. Cleaning helps create an optimal environment for an effective treatment to stimulate hair growth. Some patients may require a mild numbing agent applied to the treatment site to promote comfort during PRP injections.

How are PRP Injections Administered?

The PRP injection process occurs within an hour of the time that we create platelet-rich plasma from your own blood. Once we collect the PRP, we inject it directly into the area of your body targeted for treatment to stimulate the healing process. We use ultrasound guidance to position the proper injection site when tendons, ligaments or joints are involved. The number of PRP injections you receive will vary according to your condition, but you can generally expect two to six injections over time.

Post-Treatment Care For PRP

After undergoing a PRP hair loss treatment, your post-procedure care will include avoiding washing your hair for up to two days and avoiding harsh hair products. Following the recommended aftercare instructions helps you achieve the best possible outcome from platelet-rich plasma injections and supports the healing process. Initial treatments can cause some swelling and pain because PRP stimulates the healing process after an injury. These symptoms may last for a day or two following your appointment.

When Can I Expect to See Results?

The effectiveness of PRP therapy for hair can vary, but most patients experience a significant increase within a few months, with enhanced hair thickness and density. Results are more natural-looking than a hair transplant. You will need consistent follow-up sessions to maintain and improve your results. Many patients combine platelet-rich plasma with other hair loss treatments, such as Nutrafol or Minoxidil, to improve effectiveness.

Will Platelet-Rich Plasma (PRP) Work for Me?

PRP injections for hair regeneration are an off-label use of this treatment, as the Federal Food and Drug Administration (FDA) has not yet received sufficient data for clearance. However, qualified doctors can legally perform off-label PRP treatments for hair loss, provided they counsel patients on the procedure's nature and educate them about its pros, cons, and limitations. Patients with a high starting platelet count generally report higher satisfaction than those with platelet-poor plasma.

Visiting our Seattle-area office for a thorough consultation, including your medical history, with the VIVAA staff is critical to determining your best treatment approach. To get started, contact our office at 425-250-9999 or complete our online Request an Appointment form.