Threading does not stop hair growth. It removes hair from the root, which keeps skin smooth for several weeks, but the follicle remains alive and will produce new hair. Over time, repeated threading may cause regrowth to come in finer and sparser, but it will not permanently eliminate it.
How Threading Removes Hair
Threading uses a twisted cotton or polyester thread rolled across the skin to catch hairs and pull them out at the root. Because the entire hair shaft is removed from the follicle, regrowth takes longer than shaving, which only cuts hair at the surface. However, the follicle itself is not destroyed. Unlike waxing, threading doesn’t peel or traumatize the top layers of skin, which is one reason it’s popular for delicate areas like the eyebrows and upper lip.
The key distinction is between removing hair and eliminating the structure that produces it. Threading does the first but not the second. The follicle’s blood supply and stem cells stay intact, so a new hair will eventually grow in the same spot.
What Happens With Repeated Threading
Many people who thread regularly for months or years notice that their hair grows back thinner, softer, and less dense. This is a real effect, not just perception. Repeatedly yanking hair from the root can weaken the follicle over time, which sometimes produces a finer strand of hair or slows regrowth slightly. Some follicles may even stop producing visible hair altogether after years of consistent removal.
That said, there is no clinical evidence that threading leads to permanent hair reduction. Dermatologists point out that hair thickness and density are driven by genetics and hormones, not by the method you use to remove it. The finer regrowth some people experience is a welcome side effect, but it’s unpredictable and varies widely from person to person. You should not count on threading as a path to permanently bare skin.
Regrowth Timeline After Threading
Eyebrow hairs have a growth cycle that typically lasts 4 to 8 weeks, depending on your individual biology. After threading, most people see noticeable regrowth within 2 to 4 weeks. The exact timing depends on where each hair was in its growth cycle when it was removed. Hairs pulled during the active growth phase take the longest to return, while hairs caught near the end of their cycle may reappear sooner.
For maintenance, most people schedule threading every 2 to 4 weeks. If you prefer sharply defined brows, every 2 to 3 weeks keeps stray hairs from becoming visible. If you’re more relaxed about upkeep, you can stretch sessions to every 4 to 6 weeks without things looking noticeably overgrown.
Threading vs. Permanent Hair Removal
If your goal is to actually stop hair from growing back, threading isn’t the right tool. Laser hair removal and electrolysis are the only methods that can permanently damage or destroy a follicle. Laser targets the pigment in the hair to heat and disable the follicle, while electrolysis uses a tiny electrical current inserted directly into each follicle. Both require multiple sessions and work best on certain hair and skin types, but they are the only options with clinical evidence for long-term hair reduction.
Threading, waxing, and plucking all fall into the same category: temporary removal from the root. They buy you more time than shaving, but the follicle recovers and produces new hair. The advantage threading has over waxing is that it’s gentler on the skin’s surface, making it a better fit for sensitive or acne-prone areas.
Side Effects to Watch For
Threading is generally safe, but it is still a form of physical trauma to the follicle. The most common side effect is temporary redness right after the session, which usually fades within an hour or two. In some cases, especially with an inexperienced practitioner, threading can cause hair breakage instead of clean removal. Broken hairs are more likely to become ingrown as they regrow, curling back into the skin and causing small, irritated bumps.
Poor hygiene during threading can lead to folliculitis, an infection of the hair follicle that looks like small pimples or whiteheads around the threaded area. Less commonly, repeated threading in the same area can cause changes in skin pigmentation, leaving patches that are slightly darker or lighter than the surrounding skin. These risks are higher around the eyebrows, where the skin is thinner and more reactive. Choosing a skilled, hygienic practitioner and keeping the area clean after your appointment reduces the chance of complications significantly.
Hormonal Hair Growth and Threading
For people dealing with excess hair growth driven by hormonal conditions like PCOS, threading offers cosmetic relief but doesn’t address the underlying cause. Hormonal hair growth is fueled by androgens, and as long as those hormone levels remain elevated, new hairs will continue to appear regardless of how consistently you thread. Medical guidance on managing hormonally driven hair growth generally favors methods that don’t traumatize the follicle, since repeated plucking or waxing in hormone-sensitive areas can sometimes trigger folliculitis or ingrown hairs that compound the problem. Threading carries a similar risk in these areas, though it’s gentler on the skin surface than waxing.
If you’re threading to manage hormonal hair growth, treating the hormonal imbalance itself is what ultimately slows new growth. Threading can keep things looking tidy in the meantime, but it won’t counteract what your hormones are doing at the follicle level.