In the crowded world of skincare and aesthetic treatments, microneedling has carved out a loyal following. From reducing acne scars to rejuvenating ageing skin—and even stimulating hair growth in men—this treatment has generated both excitement and caution in equal measure. But how effective is it really? And is it safe for everyone? What Is Microneedling? Microneedling, also known as collagen induction therapy, uses a device covered in fine, sterile needles to create hundreds of micro-punctures in the skin’s surface. These tiny wounds stimulate the body’s natural healing response, boosting collagen and elastin production—proteins essential for firm, smooth skin. Professional devices can penetrate deeper than at-home tools, with needle lengths ranging from 0.5 to 2.5 mm, depending on the treatment goal. While often used on the face, microneedling can also be performed on the neck, chest, hands, belly and scalp. Is it Effective? According to numerous dermatology studies, yes—when done properly. A 2018 review in the Journal of Plastic Dermatology found microneedling significantly improved skin texture, acne scars, and wrinkles after multiple sessions. Patients with atrophic (indented) acne scars and sun-damaged skin are often ideal candidates. Effects are usually cumulative, becoming more noticeable after 3–6 sessions, spaced about 4 weeks apart. For best results, microneedling is often combined with topical serums such as hyaluronic acid, vitamin C, or platelet-rich plasma (PRP), which penetrate more deeply through the microchannels created. Microneedling for Hair Loss in Men One of the most intriguing applications of microneedling is in the treatment of male pattern baldness (androgenetic alopecia). Studies suggest microneedling may: Stimulate hair follicle regeneration by increasing blood flow and growth factors Enhance absorption of topical treatments like minoxidil (Rogaine) Reactivate dormant hair follicles by initiating localised wound healing A 2013 clinical trial published in the International Journal of Trichology compared men using minoxidil alone to those using minoxidil plus weekly microneedling. The latter group had four times more new hair growth after 12 weeks. However, results can vary based on age, severity of hair loss, and genetics. Most dermatologists recommend professional microneedling over at-home rollers for scalp treatments due to depth requirements and infection risks. Benefits of Microneedling Reduces fine lines and wrinkles Diminishes acne scars, stretch marks, and hyperpigmentation Improves skin firmness, tone, and texture Shrinks pores Boosts absorption of skincare actives Stimulates hair regrowth in some cases Can be used on all skin tones, unlike some laser treatments Risks and Side Effects Although generally safe, microneedling is not without risk—particularly when performed without proper technique or sanitation. Possible side effects include: Redness, swelling, and mild discomfort for 24–72 hours Bruising or pinpoint bleeding in deeper treatments Infections if non-sterile equipment is used Post-inflammatory hyperpigmentation, especially in darker skin tones Aggravation of active acne or rosacea At-home devices carry a higher risk of improper use and contamination, especially if not cleaned correctly. Who Should Avoid Microneedling? This treatment may not be appropriate for individuals with: Active acne, eczema, or psoriasis A history of keloid scarring Skin infections or open wounds Bleeding disorders or those on blood thinners Pregnancy or breastfeeding (seek medical advice first) What to Expect Most professional sessions take 30–60 minutes, often with a topical anaesthetic to minimise discomfort. Mild redness and sensitivity are common afterward, similar to sunburn. Visible results may take several weeks, with improvements continuing for up to 6 months due to ongoing collagen production. Post-treatment care includes: Avoiding sun exposure Using gentle, hydrating products Avoiding makeup and active skincare ingredients (retinol, acids) for 48–72 hours Final thoughts Microneedling is more than just a beauty trend—it’s a scientifically supported treatment with real benefits for skin rejuvenation and, in some cases, hair regrowth. However, like all procedures, it’s not a one-size-fits-all solution. Consulting a qualified dermatologist or licensed practitioner is essential to ensure safety and optimal outcomes. Whether you’re battling fine lines or thinning hair, microneedling might just be the minimally invasive boost you’ve been looking for.