Eyebrow tattoos, including microblading and permanent makeup, are generally safe when performed by a trained technician in a clean environment. In one cross-sectional study evaluating microblading outcomes, about 16% of clients experienced some form of complication during or after the procedure. Most of those were minor: temporary itching, discomfort, or mild allergic responses. Serious complications like infections or scarring are uncommon but not impossible, and your risk depends heavily on where you go, how the space is maintained, and how well you care for your skin afterward.
What the Procedure Actually Does to Your Skin
Whether you get microblading, powder brows, or another style of eyebrow tattoo, the basic process is the same: a technician deposits pigment into the upper layer of your skin using a handheld tool or machine with fine needles. This creates tiny wounds, which is why the procedure carries many of the same risks as a traditional tattoo, just on a smaller scale. The skin around your eyebrows is relatively thin and sits close to your eyes, so the stakes for cleanliness and technique are high.
The Biggest Risk: Infection
Any time a needle breaks the skin, bacteria can enter. The most common infections after eyebrow tattoos are caused by bacteria already living on the skin’s surface, which get pushed into the wound during the procedure or enter during the healing period. In poorly regulated settings, the risk extends to bloodborne pathogens like hepatitis B. The CDC has flagged tattoo and permanent makeup studios as environments where bloodborne pathogen protocols are often inconsistently followed. One CDC review found that only a single shop in their sample fully complied with the requirement to offer hepatitis B vaccines to artists and document their responses.
OSHA requires studios that employ technicians to follow its Bloodborne Pathogen Standard, which includes using disposable or single-use needles, disposing of blades in sharps containers immediately after use, and prohibiting the reuse of contaminated sharps. If you walk into a studio and don’t see sealed, single-use needle packages being opened in front of you, that’s a red flag.
Allergic Reactions and Pigment Safety
Here’s something most people don’t realize: no tattoo pigment is FDA-approved for injection into the skin. The FDA classifies tattoo inks, including those used for permanent makeup, as cosmetics with color additives that technically require premarket approval. But the agency has historically not enforced this, meaning the pigments in your eyebrow tattoo have never gone through the same safety review as, say, a food dye or a drug.
Eyebrow pigments commonly contain iron oxide for brown and red tones, and titanium dioxide for lighter shades. Older or lower-quality inks sometimes contain trace amounts of heavy metals like nickel, cobalt, chromium, and cadmium. Nickel, chromium, and cobalt are potent skin sensitizers, meaning they’re the most likely to trigger allergic reactions. These reactions can show up immediately or weeks later as persistent redness, swelling, or itching around the tattooed area. If you have a known nickel allergy (common in people who react to cheap jewelry), mention this to your technician before the procedure.
Delayed Inflammatory Responses
In rare cases, eyebrow tattoos can trigger a condition called granulomatous reaction, where the immune system forms small clusters of inflammatory cells around the pigment particles in the skin. These show up as firm, raised bumps within the tattooed area and can appear months or even years after the procedure. Research published in Frontiers in Medicine has documented cases where eyebrow tattoo pigment triggered cutaneous sarcoidosis, an inflammatory disease that sometimes extends beyond the skin. In genetically susceptible individuals, chronic low-level exposure to ink particles may stimulate this granulomatous response over time. These cases are uncommon, but they highlight why any persistent lump or texture change in a tattooed eyebrow deserves medical attention.
MRI Scans and Eyebrow Tattoos
If you’ve heard that tattoos can cause burns during an MRI, there’s a kernel of truth to it, but the actual risk is low. Iron oxide in tattoo pigment is ferromagnetic, meaning it can respond to the magnetic field of an MRI machine. In theory, this can generate a small electric current that heats the skin. A survey of 135 people with permanent cosmetic tattoos who underwent MRI scans found that only two (about 1.5%) reported any adverse sensation, describing it as tingling or mild burning that went away once the scan ended. No permanent skin damage has been reported in the medical literature from this type of reaction. If you have eyebrow tattoos and need an MRI, let the imaging team know beforehand. They can monitor you during the scan, and any discomfort that does occur typically resolves within hours.
Who Should Avoid Eyebrow Tattoos
Certain health conditions make the procedure significantly riskier:
- Compromised immune systems: People with lupus, those who’ve had organ transplants, or those with active viral infections face a higher risk of infection because their bodies can’t fight off bacteria as effectively.
- Keloid-prone skin: Since the procedure involves puncturing the skin, anyone with a history of keloid scarring may develop raised, thickened scars in the brow area.
- Skin conditions near the brows: Eczema, psoriasis, rosacea, or dermatitis on or around the eyebrows can compromise the skin’s surface, leading to poor pigment retention and a higher chance of irritation.
- Diabetes or high blood pressure: These aren’t absolute disqualifiers, but both need to be well-controlled. Diabetes slows wound healing, and high blood pressure can cause excess bleeding during the procedure, which dilutes the pigment and leads to patchy results.
Choosing a Safe Practitioner
Licensing requirements for eyebrow tattoo technicians vary widely by state. Some states regulate permanent makeup under their cosmetology or tattoo licensing boards, while others have minimal oversight. At a minimum, your technician should have completed bloodborne pathogen training, use disposable single-use blades or needles, and work in a space with clearly visible sterilization equipment. Ask to see their license and portfolio before booking.
Pay attention to the studio itself. Surfaces should be clean, the technician should wear gloves, and all tools that contact your skin should come from sealed, sterile packaging opened in front of you. A reputable technician will also ask about your medical history, allergies, and current medications before starting.
Aftercare That Prevents Complications
The healing window after an eyebrow tattoo is roughly 7 to 14 days before the skin looks visibly healed, though full healing and pigment settling takes about 6 weeks. During that initial period, your aftercare routine has a direct impact on whether you develop an infection or lose pigment unevenly.
Keep the area clean and dry. Avoid getting your brows wet in the shower, skip swimming pools and saunas, and hold off on intense exercise that causes heavy sweating. Don’t pick at any scabs or flaking skin, even if it’s tempting. Picking pulls pigment out of the skin and opens the wound to bacteria. Most technicians schedule a touch-up appointment around the 6-week mark to fill in any spots where pigment didn’t hold.