Is Microneedling an Effective Hair Loss Therapy

Some evidence supports the use of microneedling for hair growth therapy. One study found microneedling an effective treatment for promoting hair growth in men with male pattern baldness.

Microneedling, officially named Percutaneous collagen induction therapy (PCIT), is a cosmetic procedure involving small needles to create tiny punctures in the skin. The purpose of microneedling is to stimulate collagen production, which can help improve the appearance of fine lines, wrinkles, and scars.

When it comes to hair growth, microneedling has been suggested as a potential treatment. The theory is that by creating tiny punctures in the scalp, the body’s natural healing process is triggered, which can increase blood flow and stimulate hair growth.

There is some evidence to support the use of microneedling for hair growth. One study published in the Journal of Cutaneous and Aesthetic Surgery in 2018 found that using a 1.5 mm needle size in microneedling for hair growth was effective in promoting hair growth in men with male pattern baldness (Androgenic Alopecia). The study, “Efficacy of Topical Minoxidil plus Microneedling versus Topical Minoxidil Alone in the Treatment of Androgenetic Alopecia,“ reported an increase in hair density and thickness after four sessions of microneedling at 2-week intervals.

“The mean increase in hair count in the targeted area of one square inch at the end of the treatment was significantly more significant for the combination treatment group (12.52/inch2) than that for the minoxidil alone group (1.89/inch2),” JCAS. 

It’s important to note that microneedling at this depth should only be performed by a qualified professional using sterile equipment. Going too deep or using unsterile equipment can increase the risk of infection, scarring, and other complications. It’s also essential to follow proper aftercare instructions to minimize the risk of side effects.

Another study published in the International Journal of Trichology found that using a 0.5 mm needle size in microneedling for hair growth was effective in promoting hair growth in women with female pattern hair loss. The study reported an increase in hair density and thickness after 12 weeks of microneedling at 2-week intervals.

Types of Hair loss that could benefit from Microneedling

While microneedling was initially intended to improve the appearance of fine lines and wrinkles, more recently, it is also used for certain types of hair loss. Here are some types of hair loss that could benefit from microneedling:

Androgenic Alopecia

Androgenic alopecia, also known as male or female pattern baldness, is a common form of hair loss that affects both men and women. It is caused by a genetic sensitivity to dihydrotestosterone (DHT), a hormone derived from testosterone.

In people with androgenic alopecia, DHT causes hair follicles to shrink over time, leading to shorter and thinner hair strands. Eventually, the hair follicles may stop producing new hair altogether, resulting in baldness.

Alopecia Areata

Alopecia areata is an autoimmune disorder that causes hair loss in patches on the scalp and other parts of the body. It occurs when the immune system mistakenly attacks the hair follicles, causing them to shrink and enter a dormant phase.

The exact cause of alopecia areata is not fully understood, but it is believed to be a combination of genetic and environmental factors. It is not contagious and does not result from poor hygiene or nutritional deficiencies.

Telogen Effluvium

Telogen effluvium is a form of temporary hair loss that occurs when a large number of hair follicles enter the telogen phase, which is the resting phase of the hair growth cycle. This results in increased shedding of hair, typically two to three months after the triggering event.

The triggering event can be various factors, including physical or emotional stress, hormonal changes, medication use, major surgery, rapid weight loss, or nutritional deficiencies.

How Deep

Research has shown a direct association between needle length and the number of rollovers. However, more research is needed to confirm these findings and to determine the optimal frequency and depth of microneedling for hair growth.

When it comes to getting results, size matters. However, the optimal depth for microneedling for hair growth may vary depending on the individual and the specific condition being treated. Most studies indicate a depth between 0.6mm and 2.5 mm effectively stimulates hair growth. 

“There has been some data to show that hair growth varies based on the size of the needle and the number of times the skin was rolled over. So usually, the longer the needle, the deeper you go, and the more times you roll over, the better the results. That is what the studies have shown, said Dr. Gary Linkov, an NYC-based facial plastic surgeon. 

However, DR. Linkov cautions problems can occur if you go too deep or microneedle too often. You risk developing scar tissue formation, which can hurt the ability to grow hair. “That’s where the potential harm comes in when people microneedle at home,” he added.

The Therapeutic Window

The therapeutic window refers to the range of doses of a medication or treatment that is effective and safe for a patient. It is the range of doses between the minimum effective dose, the lowest dose that produces a therapeutic effect, and the maximum tolerated dose, which is the highest dose that can be administered without causing unacceptable side effects or toxicity.

In his YouTube video, Microneedling / Derma Rolling for Hair Regrowth, Dr. Linkov recommends beginning your treatment with a .05mm microneedle once a week for six months. Then reassess. He reminds viewers that home treatments need to remain within the therapeutic window.

“There exists a therapeutic window in any therapy, whether it be procedural therapy or drug therapy,” he states. “If a person falls just short, they may not see any results, or if they go overboard, they can cause serious harm.”

Therefore, it’s strongly recommended to consult with a healthcare professional to determine the appropriate depth and frequency of microneedling for your specific needs and concerns.

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