Dermarolling for hair growth — does It work, or will it just hurt?
Dermatologists weigh in.
Risks of dermarolling for hair growth
Before trying anything new, understanding the possible risks is a good idea. Certain people may want to avoid dermarolling altogether. “Those with scalp conditions like psoriasis, eczema, or active infections should avoid dermarolling, because it can worsen these conditions and cause further irritation,” says Bowles. “Those with clotting disorders or who are on blood thinning medications should also avoid it since the procedure can increase the risk of bleeding.”
According to our experts, if you don’t have any of the above conditions, using an at-home dermaroller for hair growth is most likely safe as long as you have a healthy scalp. That said, they did outline the potential risks below:
- Infection: “The primary risk of dermarolling the scalp is an infection if the roller isn’t properly sanitized or if the skin is broken,” says Bowles.
- Irritation: If you dermaroll your scalp too often or use excessive pressure, it can lead to irritation, redness or inflammation, says Collins. As a reminder, the maximum you should dermaroll is twice a week and it’s important only to use gentle pressure.
- Hair breakage: “If the dermaroller is used incorrectly or with too long a needle, it could potentially damage existing hair, causing breakage.” says Collins.
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Other ways to encourage hair growth
Demarolling isn’t the only thing you can do to encourage healthy hair growth. Our experts said there are several other proven ways to get hair to grow. Here are their suggestions:
- Minoxidil: This FDA-approved topical is one of the most widely used treatments for hair thinning and pattern baldness, says Collins. It’s the active ingredient in Rogaine, along with many other hair loss treatments, and can be purchased over the counter.
- A healthy diet: “Eating a balanced diet that is rich in vitamins and minerals, particularly biotin, vitamin D, and iron, can also support healthy hair growth,” says Bowles.
- Low-level laser therapy (LLLT): If you go to your dermatologist, they may suggest low-level laser therapy. This involves using a device like a laser comb or helmet that emits low-level light to stimulate hair follicles and encourage growth, says Collins.
- Scalp massage: Similar to how a dermaroller brings blood flow to your scalp, regularly massaging the scalp can also increase blood flow to hair follicles, supporting healthier hair growth, says Collins.
Meet our experts
At NBC Select, we work with experts with specialized knowledge and authority based on relevant training and experience. We also ensure all expert advice and recommendations are made independently and without undisclosed financial conflicts of interest.
- Dr. Kristina Collins is a board-certified dermatologist specializing in Mohs micrographic surgery, as well as surgical and cosmetic dermatology in Texas
- Dr. Alexandra Bowles is board-certified dermatologist at MONA Dermatology in Cincinnati.
Why trust NBC Select?
Bethany Heitman is a contributor at NBC Select and a journalist who regularly covers beauty, home and lifestyle. For this story, she interviewed dermatologists about dermarolling for hair growth.
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