Can dermarolling really boost hair growth? What experts say

Dermarolling, a technique involving tiny needles to create micro-injuries on the skin, has gained attention as a potential aid for hair growth. Over the past five years, studies have shown moderate success when combined with other treatments. The method is now recognised by dermatologists, though it remains a supplementary option rather than a cure.

Dermarolling works by stimulating blood flow and collagen production in the scalp. This process helps deliver nutrients to hair follicles, potentially strengthening them. Research, including a 2022 review in the Journal of Cosmetic Dermatology, found that pairing dermarolling with minoxidil improved results for hair regrowth.

For those trying it at home, experts recommend using a needle length between 0.25mm and 1.5mm. The scalp and device must be cleaned thoroughly before use to avoid infection. Gentle rolling in different directions is advised, followed by a nourishing serum or hair growth treatment. However, sessions should not exceed twice a week to prevent irritation.

Despite its benefits, risks remain if not done correctly. Poor sanitation can lead to infections, while excessive pressure or overuse may cause irritation or hair breakage. The method is also unsuitable for those with scalp conditions like psoriasis or eczema.

Beyond dermarolling, other hair growth strategies include maintaining a balanced diet, using minoxidil, trying low-level laser therapy, or regularly massaging the scalp.

While dermarolling shows promise in supporting hair growth, it is most effective when used alongside proven treatments. Clinical studies continue to refine its role, but proper technique and caution remain essential. Those considering it should consult a dermatologist to assess suitability and minimise risks.