Laser Hair Regrowth (PRP + Laser Therapy): A Comprehensive Guide

laser February 27, 2025

Hair loss affects millions of people worldwide, and its impact goes beyond appearance, influencing self-esteem, confidence, and overall quality of life. While numerous treatments are available, combining Platelet-Rich Plasma (PRP) therapy with laser therapy has gained significant attention as an effective and noninvasive solution for promoting hair regrowth.

This blog post will explore how PRP and laser therapy work together, the science behind these treatments, and more.

Table of Contents

What is PRP (Platelet-Rich Plasma) Therapy?

Platelet-rich plasma (PRP) therapy is a medical treatment that uses a patient’s blood to stimulate tissue regeneration and healing. PRP is a concentration of platelet blood cells containing growth factors essential for cell repair and regeneration. In hair loss treatment, PRP is extracted from the patient’s blood, processed to concentrate the platelets, and injected into the scalp to promote hair regrowth.

How PRP Works for Hair Regrowth

Platelet Activation: When PRP is injected into the scalp, the growth factors in the platelets are released, which stimulate the hair follicles to enter the anagen (growth) phase of the hair cycle.
Increased Blood Flow: The PRP injections improve blood circulation around the hair follicles, providing them with the essential nutrients and oxygen they need to thrive.
Hair Follicle Stimulation: PRP can awaken dormant hair follicles, which is crucial for improving hair density and thickness.

The treatment is typically performed in sessions about four to six weeks apart, with maintenance treatments every three to six months.

Risks and Side Effects

PRP therapy is generally considered safe because it uses the patient’s blood, reducing the risk of allergic reactions. However, some individuals may experience minor side effects, including:

Pain and Discomfort: Mild pain or discomfort during injections. Topical numbing can minimize this.
Swelling and Bruising: Common at injection sites, typically resolves within a few days.
Redness and Itching: Temporary redness and mild itching usually clear up within hours to days.
Infection: There is a small risk of infection if the procedure isn’t done in a sterile environment. Follow aftercare instructions to minimize this risk.
Headache: Some experience mild headaches post-treatment, usually resolving within 24 hours.
Scalp Sensitivity/Tightness: Temporary tightness or sensitivity in treated areas. It generally lasts a few days.
Allergic Reactions: Rare but possible. Since PRP uses your blood, the risk is minimal. However, reactions to numbing agents or topical creams are possible.

PRP Treatment vs. Other Hair Restoration Methods

While PRP therapy has shown promising results, it’s essential to compare it with other hair restoration options:

Hair Transplant Surgery: Unlike PRP, which stimulates natural regrowth, hair transplant surgery involves removing hair follicles from one part of the scalp (typically the back) and transplanting them to areas of thinning or baldness. While hair transplants offer permanent results, they are more invasive and expensive than PRP.
Topical Treatments (Minoxidil): Minoxidil (Rogaine) is a standard topical treatment for hair loss, particularly for androgenetic alopecia. It stimulates hair growth by increasing blood flow to the scalp. PRP, however, provides more potent results by delivering a high concentration of growth factors directly to the scalp.
Oral Medications (Finasteride): Finasteride (Propecia) is a prescription medication that blocks the hormone responsible for hair loss in men. While effective, it may come with side effects, such as decreased libido and erectile dysfunction.

What is Laser Therapy for Hair Regrowth?

Laser therapy, or low-level laser therapy (LLLT), involves using red light wavelengths that penetrate the scalp to stimulate the hair follicles. These wavelengths, typically 600 to 1,100 nanometers, have been shown to increase circulation and effectively promote hair follicle health.

When the scalp absorbs the light, it stimulates cellular activity and increases blood flow to the hair follicles. This process is believed to promote the production of adenosine triphosphate (ATP), which is essential for cell energy. The increased ATP production leads to enhanced follicular function and hair growth.

How Laser Therapy Works

Cellular Stimulation: Low-level laser light stimulates the mitochondria in the cells of the hair follicles, increasing cellular activity and promoting hair regeneration.
Enhanced Blood Flow: The light increases blood flow to the scalp, ensuring that hair follicles receive the nutrients they need to grow healthy, strong hair.
Revitalize Hair Follicles: Laser therapy may help dormant or miniaturized hair follicles begin producing thicker, stronger hair by stimulating the cells within the follicle.
Reduce Inflammation: Laser therapy may reduce scalp inflammation, a common factor in hair loss conditions such as androgenetic alopecia.

Types of Laser Therapy Devices for Hair Regrowth

Laser therapy can be administered using various devices, including handheld lasers, laser combs, and laser helmets. Sessions typically last 20-30 minutes and are recommended 2-3 times weekly.

Clinical-Based Laser Therapy: People usually opt for professional treatments, often using more powerful, clinical-grade devices. These treatments typically take place in dermatology clinics or hair restoration centers.
Laser Combs: These handheld devices are designed for home use. They feature small laser diodes along the comb’s teeth, passed through the scalp’s hair. Users typically need to use the comb for a few minutes a day.
Laser Helmets: These are wearable devices that cover the entire scalp. They are designed for at-home use and provide a more even and consistent treatment than handheld devices. The helmet typically has more laser diodes, offering a more expansive treatment area.
Laser Caps: Similar to helmets, laser caps are designed to fit snugly on the head and deliver laser light across the scalp. They are portable, discreet, and can be used while performing other activities.

Benefits of Laser Therapy for Hair Regrowth

Non-invasive: Laser therapy is non-surgical and requires no recovery time. Unlike hair transplants, which involve taking hair follicles from one part of the scalp and implanting them in bald areas, laser therapy stimulates existing follicles to encourage growth.
Pain-Free: The treatment is painless, with most patients reporting no discomfort during or after the procedure. It is often described as a relaxing experience, mainly when using devices like helmets or caps that provide hands-free treatment.
Convenient: At-home devices like laser combs and helmets make incorporating treatment into your daily routine effortless. These devices are often portable and easy to use, allowing regular treatments in the comfort of your home.
Few Side Effects: Laser hair regrowth therapy has few side effects. Some individuals may experience mild scalp irritation or dryness, but these effects are generally temporary.
No Chemicals or Medications: For individuals who prefer to avoid pharmaceuticals like minoxidil or finasteride due to potential side effects, laser therapy provides a chemical-free alternative for hair regrowth.

Combining PRP and Laser Therapy for Optimal Results

While PRP and laser therapy have been proven effective for hair regrowth, combining these two treatments provides a synergistic effect that leads to better and faster results. Here’s why combining these therapies works so well:

A. Enhanced Follicular Stimulation:

PRP provides growth factors, while laser therapy stimulates cellular metabolism within hair follicles. Together, these mechanisms complement each other. PRP promotes follicle regeneration by providing the necessary growth factors, while laser therapy ensures the follicles receive the energy they need to function optimally.

B. Increased Blood Flow and Nutrient Delivery:

Both therapies improve blood circulation in the scalp, essential for nourishing hair follicles. PRP increases the supply of oxygen and nutrients to the hair follicles through growth factor-induced vasodilation. At the same time, laser therapy enhances circulation by stimulating endothelial cells (cells that line blood vessels).

C. Accelerated Results:

PRP treatment typically takes longer to show visible results (usually 3-6 months), as it requires time for hair follicles to respond to the growth factors. Laser therapy, on the other hand, tends to show results more quickly (often within 4-6 weeks) by improving scalp health and stimulating hair follicles.
Why the Combination Works Faster: When combined, the early benefits of laser therapy—increased circulation, reduced inflammation, and cellular stimulation—create an ideal environment for the long-term effects of PRP (growth factor activation and follicle regeneration). This combination results in accelerated visible hair regrowth, with patients often seeing significant hair density and texture improvement in as little as 3 months.

D. Reduced Hair Shedding and Increased Follicle Strength:

PRP reduces hair shedding by stabilizing the hair growth cycle and prolonging the anagen phase, which helps reduce hair loss. Laser therapy supports this by improving follicle health and reducing inflammation, which can contribute to shedding.

What to Expect from PRP and Laser Hair Regrowth Treatments

Treatment Plan

Frequency of Sessions: Typically, patients undergo PRP therapy once a month for the first three to four months, followed by maintenance treatments every 3-6 months. Laser therapy sessions are recommended 2-3 times a week for the first 12 weeks, followed by fewer sessions for maintenance.
Duration of Results: Results vary by individual, but most patients begin to see visible improvements in hair regrowth within 3-6 months of starting treatment. Full results may take up to a year to manifest.
Side Effects: Both treatments are generally well-tolerated. Common side effects of PRP include slight discomfort during the injection process and mild redness or swelling at the injection sites. Laser therapy may cause mild scalp irritation, but these side effects are typically temporary.

Costs

PRP Therapy: The cost of a single PRP session typically ranges from $500 to $2,500, depending on the clinic and the extent of treatment required. Maintenance sessions may cost less.
Laser Therapy: Laser treatments vary widely in cost, with in-office sessions typically ranging from $100 to $300 per session. Home devices like laser combs or helmets can cost anywhere from $200 to $1,500 for a one-time purchase.

Ideal Candidates for Laser Hair Regrowth (PRP + Laser Therapy)

The combination of PRP and laser therapy is suitable for a wide range of individuals, particularly those who:

Men and Women with Androgenetic Alopecia: Individuals experiencing genetic hair loss, commonly referred to as male or female pattern baldness, can significantly benefit from the combination of PRP (Platelet-Rich Plasma) therapy and laser therapy, which can stimulate hair follicles and promote hair regrowth.
Patients with Thinning Hair: Those who notice general hair thinning may find effective results by combining both therapies. PRP can nourish hair follicles, while laser therapy can enhance blood circulation to the scalp.
Individuals Seeking Non-Surgical Options: Candidates who avoid invasive hair restoration surgeries, such as hair transplants, may opt for this non-surgical approach that utilizes PRP and laser treatments for gradual hair improvements.
Men and Women with Alopecia Areata: Patients with autoimmune conditions like alopecia areata, which results in patches of hair loss, may see positive outcomes from combining PRP—known for its regenerative properties—with laser therapy.
Post-Surgery Hair Restoration Patients: Individuals who have undergone hair transplant surgery may use PRP and laser therapy as adjunct treatments to promote faster healing and enhance the survival rate of newly transplanted hair follicles.
Those with Scalp Issues: Candidates experiencing scalp conditions, such as psoriasis or seborrheic dermatitis, that contribute to hair loss may benefit from both treatments, as they can promote scalp health and support hair regrowth.
People with Stress-Induced Hair Loss: Individuals experiencing telogen odor often triggered by stress can use this combination therapy to rejuvenate hair growth by stimulating dormant hair follicles.
Active Individuals: Fitness enthusiasts or athletes who regularly experience hair thinning due to sweat and environmental exposure may find that PRP and laser therapy can help maintain scalp health and prevent further hair loss.
Age-Related Hair Loss: Those facing age-related hair thinning or loss can benefit from PRP’s cell regeneration effects alongside laser therapy’s ability to enhance blood flow, providing a comprehensive approach to hair rejuvenation.
Individuals Committed to Long-Term Hair Care: Candidates who are proactive and committed to a long-term hair restoration regimen are ideal for these combined therapies, as consistent treatments can lead to optimal results over time.

However, those with advanced stages of baldness, especially individuals with large, established bald spots, may not see the same degree of success with these treatments and may be better suited for hair transplant procedures.

Long-Term Maintenance and Hair Care After Treatment

Below is a comprehensive guide on how to care for your hair and scalp post-treatment.

Adopt a Scalp-Friendly Hair Care Routine

The daily care you give your scalp and hair plays a vital role in maintaining hair health and promoting further growth. This involves:

Using Gentle Shampoos and Conditioners: Opt for sulfate-free, gentle shampoos that won’t strip the scalp of its natural oils. Many individuals notice scalp irritation or dryness post-treatment, so choosing soothing products with ingredients like aloe vera, chamomile, or tea tree oil can help keep the scalp healthy without causing additional dryness or inflammation.

Avoiding Harsh Hair Styling Products: Styling products that contain heavy chemicals, alcohol, or artificial fragrances can exacerbate hair thinning and damage. Stick to natural or organic hair care products, and avoid excessive use of hair gels, mousses, and sprays.

Massaging Your Scalp Regularly: Massaging your scalp with your fingertips for 5-10 minutes daily can help improve blood circulation to the hair follicles, support follicular health, and enhance the benefits of PRP and laser therapy. Scalp massage also helps to distribute natural oils and prevent scalp dryness.

Protect Your Hair from Environmental Damage

Your hair and scalp are constantly exposed to environmental factors such as sun, pollution, and harsh weather conditions. Protecting your hair from these elements can help prevent further damage.

Sun Protection: Overexposure to UV rays can weaken hair follicles and dry out the scalp, leading to further hair thinning. When spending extended time outdoors, wear a wide-brimmed hat or use a sunscreen spray designed for hair and scalp protection. Avoid exposing your scalp to direct sunlight, especially after PRP treatments, when the scalp may be more sensitive.

Limit Heat Styling: Heat-styling tools, such as blow dryers, flat irons, and curling irons, can cause hair to dry and brittle over time. If you must use them, always apply a heat protectant spray or serum before styling and keep the heat in the lowest possible setting. Air drying your hair is always a gentler option.

Avoid Tight Hairstyles: Tight ponytails, braids, or buns can cause traction alopecia, where hair is pulled out due to constant tension on the follicles. Instead, opt for looser hairstyles and avoid pulling your hair too tightly, especially if you notice increased shedding or thinning.

Maintain a Healthy Diet and Lifestyle

The health of your hair is deeply connected to your overall physical health. A well-balanced diet and healthy lifestyle can significantly impact the effectiveness of your hair restoration efforts.

Nutrient-Rich Diet: Ensure your diet is rich in essential vitamins and minerals that promote hair health, including vitamins A, C, D, E, biotin, zinc, iron, and omega-3 fatty acids. Foods like leafy greens, nuts, seeds, eggs, fish, and berries can provide the nutrients necessary for healthy hair growth

Hydration: Proper hydration is essential for overall well-being and plays a key role in keeping the scalp and hair follicles hydrated. Aim to drink at least eight glasses of water a day to help maintain the health of your scalp and hair.

Stress Management: Chronic stress is a well-known contributor to hair loss, as it can lead to conditions like telogen effluvium (stress-induced hair shedding). Incorporating stress-reducing activities such as yoga, meditation, exercise, or hobbies can help reduce the impact of stress on your hair.

Monitor Your Hair Growth Progress

It’s essential to monitor the progress of your hair regrowth and assess whether any adjustments are needed in your treatment plan.

Track Visible Changes: Keep a journal or take photos of your hair before, during, and after the treatments. This will help you visualize the improvements over time and track the areas of your scalp that may need more attention.

Communicate with Your Provider: Contact your dermatologist or hair restoration specialist to discuss any concerns. Suppose you notice a slowdown in progress or experience any adverse reactions. They can adjust your treatment plan or suggest additional therapies (such as topical minoxidil) to complement your PRP and laser sessions.

If you’re looking to enhance the effects of PRP and laser therapy, additional treatments and supplements can further support hair regrowth.

Minoxidil: If you’re open to using medications, minoxidil (Rogaine) can be applied topically to the scalp to enhance hair growth. This treatment is often used with PRP and laser therapy, which works through a different mechanism (increasing blood flow to the follicles).

Hair Growth Supplements: Supplements containing biotin, collagen, saw palmetto and other hair-supporting nutrients can complement your in-office treatments. These supplements help nourish hair from within and support optimal follicular health.

Scalp Microneedling: Some individuals benefit from scalp micro needling, which involves using a derma roller to create tiny punctures in the scalp. This can boost the effectiveness of PRP therapy by allowing for better platelet absorption and stimulating collagen production, leading to healthier hair follicles.

FAQs

Does PRP regrow hair?

Yes, Platelet-Rich Plasma (PRP) therapy has been shown to promote hair regrowth in some individuals experiencing hair loss. PRP contains growth factors that can stimulate hair follicles and improve hair density. However, results can vary depending on the individual and the underlying cause of hair loss.

Does laser hair regrowth therapy work?

Low-level laser Therapy (LLLT) is considered adequate for some individuals to promote hair growth. This non-invasive treatment works by stimulating hair follicles and increasing blood circulation to the scalp. Many users report positive outcomes, but results can differ based on individual factors.

Is PRP better than LLLT for hair loss?

There is no definitive answer to whether PRP is better than LLLT. Both treatments have benefits and may be more effective depending on the individual’s specific hair loss condition. Some practitioners recommend using both treatments to enhance results, as they target hair loss through different mechanisms.

Does LLLT make hair thicker?

LLLT stimulates the hair follicles and promotes increased blood circulation to the scalp, encouraging existing hair to grow stronger and thicker. Over time, consistent use of LLLT can improve hair density and reduce shedding, leading to the appearance of fuller, healthier hair.

Does PRP regrow hair permanently?

The results of PRP therapy are not permanent, but they can be long-lasting. PRP stimulates hair growth by using growth factors to rejuvenate dormant hair follicles, but hair regrowth is a gradual process. After completing an initial series of treatments, maintenance sessions are typically needed every 6 months to a year to sustain the results and prevent further hair loss. While PRP can significantly improve hair density, it does not entirely prevent future hair loss, so ongoing maintenance is essential for maintaining results.

Can you do laser and PRP together?

You can combine PRP and laser therapy for enhanced hair regrowth results. PRP and laser therapy work synergistically to stimulate hair follicles from different angles. While PRP introduces growth factors directly into the scalp, laser therapy helps improve circulation and promotes overall follicular health. Together, they can accelerate hair regrowth, improve hair quality, and provide longer-lasting results compared to using either treatment alone.