POSTED: 10 Oct 2024

Microneedling for Hair Growth, Does It Really Work?

Microneedling is a popular skincare treatment, often used to improve skin texture and boost collagen production. Over the last few years, however, it has gained attention for its potential hair growth benefits. There’s a lot of hype about it as a treatment for thinning hair. However, beyond the marketing does microneedling work for hair loss and can it really help with growth? In this article, we’re going to explore into the science behind how microneedling works and evidence for whether it’s effective for hair loss. We’ll also review the different types of microneedling for hair, safety and risks as well as the best way to use it.

What Is Microneedling?

Also known as collagen induction therapy, microneedling is a cosmetic procedure that uses tiny needles to create micro-injuries in the skin. These micro-injuries stimulate the body’s natural healing process, which involves increased collagen and elastin production. On the scalp, microneedling works by stimulating dormant hair follicles which helps promote hair growth. This makes it an exciting potential treatment for those struggling with hair thinning and loss.

Broadly speaking, there are two different types of microneedling treatments for hair growth:

  • Professional microneedling: This involves the use of specialised devices with longer needles (1.0-2.5 mm) that allow for deeper penetration into the scalp, potentially leading to more significant results. This type of microneedling is generally more effective for helping to promote hair growth, especially when combined with treatments like platelet-rich plasma (PRP) therapy. You should only have professional microneedling treatments by trained medical professionals who will perform them under sterile conditions. This reduces the risk of infection or injury.
  • Home microneedling: This uses devices, such as dermarollers that have shorter needles (0.25-0.5 mm). This makes them less effective but safer for unsupervised use. As such, at-home microneedling may offer more subtle results compared to professional treatments. However, improper use carries a higher risk of scalp irritation or infection. This is why it is important to consult with a dermatologist or other specilaist before starting.

Benefits of Microneedling for Hair

The theory behind microneedling for hair growth is that by creating controlled micro-injuries on the scalp triggers a healing response. This then promotes healthier hair follicles. The micro-injuries caused by microneedling can also increase blood flow to the scalp, potentially delivering more nutrients and growth factors to hair follicles. For this reason, microneedling may offer several benefits for promoting hair growth and addressing hair loss. These include:

  • Stimulates Hair Follicles: Microneedling creates controlled micro-injuries on the scalp. This can help reactivate dormant hair follicles, encouraging new hair growth.
  • Increases Blood Circulation: The micro-injuries caused by microneedling can increase blood flow to the scalp. This delivers more nutrients and growth factors to hair follicles and supporting healthier hair growth.
  • Enhances Absorption of Topical Treatments: Microneedling may help improve the absorption of topical treatments like minoxidil, making them more effective for hair regrowth.
  • Minimal Downtime: Compared to more invasive hair loss treatments, microneedling has minimal downtime and fewer potential side effects.
  • Suitable for Early Stages of Hair Loss: Microneedling is particularly effective for individuals experiencing early-stage hair thinning.

What Does The Science Say?

Research on microneedling for hair growth supports its potential as an effective treatment for androgenetic alopecia. Additionally, several studies indicate that microneedling can stimulate hair regrowth in both androgenetic hair alopecia and alopecia areata when combined with other treatments like minoxidil or platelet-rich plasma (PRP). The underlying mechanism is not fully understood but microneedling is thought to work by creating micro channels in the scalp. This enhances the absorption of topical treatments and allows these treatments to penetrate more deeply. It also increases blood circulation and stimulates dormant hair follicles, triggering the body’s natural healing response. The effect is to then release growth factors beneficial for hair growth.

Although there is a good amount of evidence that supports microneedling as a promising treatment, it is strongest of early-stage hair thinning and usually when in combination with other therapies. Furthermore, results can vary significantly between individuals. As ever, more long-term higher evidence studies are needed to fully understand its potential and limitations as a hair loss treatment.

What to Expect from Professional Microneedling Hair Loss Treatments

If you decide to try professional microneedling for hair growth, it’s important to set realistic expectations. Most people require multiple sessions to see noticeable results, and it’s crucial that the treatment is performed by a licensed professional to minimise the risk of injury or infection. The number of sessions needed will vary depending on the severity of hair loss and individual response to the treatment.

A typical professional microneedling session for hair growth lasts between 30 to 60 minutes. Before the session, your dermatologist will ask you to cleanse your scalp thoroughly to remove any dirt, oil, or product buildup. In some cases, a topical numbing cream will be applied to minimize discomfort during the procedure. During the session, a trained professional will use a microneedling device to create tiny punctures on the scalp, which may cause mild discomfort but is generally well-tolerated. The device is rolled over the scalp in multiple directions to ensure even coverage of the treatment area.

Microneedling sessions are usually spaced 4 to 6 weeks apart to allow the scalp to heal properly, with most individuals needing 4 to 8 sessions to achieve noticeable results. After the procedure, you may experience some redness or sensitivity, which typically subsides within a day or two. It is important to avoid washing your hair for at least 24 hours to allow the micro-injuries to begin healing, and you should avoid harsh hair products, direct sunlight, and strenuous physical activity for a few days. Applying a soothing, alcohol-free serum or moisturiser can help reduce redness and promote healing. Your provider may also recommend a gentle topical treatment to enhance the effects of microneedling and support hair growth.

At Home Microneedling Hair Treatments

There are many at-home microneedling hair growth devices available. The needles on these devices are usually shorter than those used by professionals, which makes them less effective for stimulating hair growth. However, improper use can also lead to scalp irritation, infection or even worsening of hair loss.

Even if you decide to proceed with at-home microneedling, It’s best to consult with a hair growth specialist first. They will ensure you have a good technique which will maximise safety and effectiveness. Some general useful tips for microneedling your scalp at home include:

  • Choose the Right Device: Select a microneedling device specifically designed for home use, such as a dermaroller with needle lengths of 0.25-0.5 mm. Avoid using longer needles, as they carry a higher risk of injury.
  • Cleanse Your Scalp: Wash your hair and scalp thoroughly with a gentle shampoo to remove any dirt, oil, or product buildup. This step is essential to prevent infection.
  • Sanitize the Device: Before using the dermaroller, disinfect it by soaking it in 70% isopropyl alcohol for about 10 minutes. This ensures that the needles are sterile and reduces the risk of infection.
  • Section Your Hair: Divide your hair into sections to make it easier to access the areas you want to treat. This helps ensure that you cover the entire scalp evenly.
  • Apply a Topical Treatment (Optional): If you’re using a topical treatment like minoxidil, apply it before or immediately after microneedling. Microneedling can improve the absorption of these treatments, making them more effective.
  • Start Microneedling: Gently roll the dermaroller over the targeted areas of your scalp. Roll in multiple directions—vertically, horizontally, and diagonally—about 4-5 times in each direction. Apply light pressure; avoid pressing too hard to prevent injury.
  • Clean the Device Again: After completing the treatment, clean the dermaroller by soaking it in isopropyl alcohol again. Allow it to air dry before storing it safely.
  • Moisturise the Scalp: After microneedling, apply a soothing, alcohol-free serum, oil or moisturiser to your scalp to help reduce redness and promote healing.
  • Avoid Harsh Products: For at least 24 hours after microneedling, avoid using harsh hair products or exposing your scalp to direct sunlight. This helps reduce irritation and supports the healing process.
  • Repeat as Recommended: Read the manufacturer’s guide carefully and any advice given by your medical provider. At-home microneedling should be done no more than once a week to allow your scalp to heal properly between sessions. Overuse can lead to irritation or damage.

Risks, Side Effects & Contraindications

Although microneedling can be safe and effective, it’s important to understand the potential risks and side effects. Common side effects include:

  • Redness
  • Swelling
  • Sensitivity on the treated area

The above typically subside within a few days. There is also a risk of infection if the procedure is not performed under sterile conditions or if proper aftercare is not followed. Improper technique or device can also lead to scarring and hair loss.

As such microneedling may not work or be suitable for everyone with hair loss. Individuals with certain skin conditions (e.g., eczema, psoriasis), active scalp infections, or a history of keloid scarring should avoid microneedling. Additionally, those with severe hair loss or underlying medical conditions that contribute to hair thinning may not benefit as much from microneedling. This is why it’s always a good idea to consult with a healthcare professional. They will help you determine whether microneedling or other hair growth treatments are best for you.

Alternative & Complimentary Hair Loss Treatments

There are many hair loss treatments which may work better for you than microneedling. It is also sometimes beneficial to combine one or more of these treatments with microneedling to increase your chances of hair growth. These treatments include:

  • Over-the-Counter (OTC) Treatments: These include topical solutions like lower strength Minoxidil which you apply directly to the scalp to promote hair growth. Minoxidil is available up to 5% without a prescription in the UK.
  • Prescription Medications: Topical or oral medications like Spironolactone, Finasteride and Dutasteride may help reduce androgenetic hair loss.
  • Platelet-Rich Plasma (PRP) Therapy: This involves drawing a small amount of the patient’s blood, processing it to concentrate the platelets, and then injecting it into the scalp. PRP contains growth factors that can help stimulate hair follicles.
  • Low-Level Laser Therapy (LLLT): This non-invasive treatment uses red light to stimulate hair follicles and promote growth.
  • Nutritional Supplements: Hair loss can sometimes be linked to nutritional deficiencies. Supplements containing Biotin, Vitamin D and other hair-healthy nutrients can support overall hair health.
  • Hair Transplant Surgery: For those with advanced hair loss, hair transplant surgery may be an option. This surgical procedure involves moving hair follicles from a donor area to the areas experiencing hair loss. Although more invasive, it can provide long-lasting and significant results if it works.

So, it seems that microneedling can really help with hair growth and work as a hair loss tretament. However, it is not for every one and results vary from person to person. In addition, it is better suited to certain types of hair loss and may benefit when used in combination with other treatments. If you’re experiencing hair loss, it is best to seek medical health to diagnose your hair loss and determine the best treatment options for you.

We understand that hair loss is an intensely personal journey. This is why we created personalised hair loss and regrowth treatments through our online skin clinic. Our doctors create custom hair loss treatments using actives such as MinoxidilSpironolactone and Tretinoin for each and every patient. We also treat skin concerns like acnehyperpigmentationmelasma and signs of skin ageing with bespoke skincare treatments. Start your virtual consultation and begin your journey to great hair today.

Authored by:

Dr Amel Ibrahim
Aesthetic Doctor & Medical Director
BSC (HONS) MBBS MRCS PHD
Founder City Skin Clinic
Member of the Royal College of Surgeons of England
Associate Member of British Association of Body Sculpting GMC Registered - 7049611

Connect with us

  • Facebook Logo
  • Twitter Logo
  • Instagram Logo
  • Pinterest Logo
  • YouTube Logo
  • LinkedIn Logo

Start Your Online Consultation

The journey to great skin starts here. Start your online consultation for personalised prescription-strength skincare.

Start Consultation