Eyebrow Regrowth: Do Eyebrow Slits Grow Back?

Are you curious about eyebrow slits and how they grow back? Whether you've experimented with slits for a trendy look or are wondering about their natural regrowth, understanding the process can help you with your brow journey. In this article, we’ll explore the phases of eyebrow growth, factors that affect regrowth, and tips to speed up the process. Plus, we’ll answer common questions about eyebrow slits, including how long they take to fill in and whether they’re considered attractive. Let’s dive in!

Phases of Eyebrow Growth and How Long They Take

Just like the hair on our heads, eyebrow growth follows three key phases: anagen, catagen, and telogen. Understanding these phases helps explain how long it takes for eyebrows to fully grow back.

Anagen Phase (Growth Phase)

  • Duration: 1 to 2 months
  • What Happens: This is the active growth stage where eyebrow hair grows at around 0.16 millimeters per day. Hair follicles are working to produce new cells, resulting in visible eyebrow growth.

Catagen Phase (Transitional Phase)

  • Duration: A few weeks
  • What Happens: The hair follicles shrink and detach from the blood supply. Growth slows significantly, and the hairs become more fragile, preparing for the resting phase.

Telogen Phase (Resting Phase)

  • Duration: 2 to 4 months
  • What Happens: In this resting stage, the hair stops growing but stays in place until it's shed to make room for new growth. This is when you might notice eyebrow hair falling out.

After the telogen phase, the cycle repeats. The length of each phase varies between individuals, influenced by genetics, age, and health. Proper care and patience, especially during the growth phase, are key to achieving full, healthy brows.

Key Factors Affecting Eyebrow Regrowth

Several factors play a role in how quickly and effectively your eyebrows grow back after thinning or hair removal. These include genetics, age, health, and lifestyle choices, each impacting the speed and success of regrowth. Here's a summary of the key elements:

1. Genetics

Genetics determines your natural hair growth patterns, including the thickness and rate at which your eyebrows regrow. Some people naturally have faster hair cycles, making it easier to bounce back from over-plucking.

2. Age

As you age, the hair growth cycle slows down, making it harder for older individuals to experience quick eyebrow regrowth. Hormonal changes over time can also cause eyebrow thinning.

3. Overall Health

Your general health can significantly affect hair regrowth. Nutrient deficiencies, hormonal imbalances, and certain health conditions can slow down the process, while a healthy diet and well-being promote faster regrowth.

4. Lifestyle Choices

Unhealthy habits like smoking, excessive drinking, and high stress can hinder regrowth, while a healthy lifestyle, including exercise and balanced nutrition, supports faster recovery. Environmental factors, such as UV exposure, can also damage hair follicles, impacting eyebrow regrowth.

How Long Do Eyebrow Slits Take to Grow Back?

The regrowth time for eyebrow slits typically ranges from 2 to 4 weeks, depending on individual factors like hair growth rate, age, and the method used to create the slit. Shallower slits made with less aggressive methods may see quicker regrowth, while deeper cuts or frequent shaving may take longer to fully recover. Additionally, your overall health, genetics, and the condition of your hair follicles play a role in how quickly your eyebrows return to their normal state. Patience is key, and using products like eyebrow growth serums may help speed up the recovery process by nourishing the hair follicles and encouraging regrowth.

How to Speed Up Eyebrow Slit Regrowth

If you're eager to speed up the regrowth process for an eyebrow slit, there are several effective steps you can take to encourage faster and healthier hair growth.

1. Use Growth Serums

Applying a high-quality growth serum specifically designed for brows can significantly boost the regrowth process. The LENGTH Growth Serum is a great option, formulated with natural plant extracts to stimulate new growth and encourage longer, thicker, and darker brows. With its exclusive doe-foot applicator, it allows for easy, precise application along your eyebrow slit. For best results, use regularly and apply the serum from the head to the tail of the brow. You may start seeing visible improvements within 2 to 3 weeks, especially when used alongside LAYER keratin conditioning treatment.

2. Maintain a Healthy Diet

Eating a balanced diet rich in vitamins and minerals supports hair growth from the inside. Foods high in biotin, vitamins A, C, and E, and omega-3 fatty acids promote healthy hair and skin, helping your eyebrows recover more quickly.

3. Gently Massage the Area

Massaging the brow area gently helps to stimulate blood flow to the hair follicles, promoting faster hair growth. Using light pressure, massage the eyebrow area for a minute or two each day to increase circulation.

4. Avoid Over-Plucking or Shaving

While waiting for your brows to grow back, avoid plucking or shaving the area to allow the hair follicles time to heal and strengthen. Over-manipulating the hair can delay the regrowth process and result in patchy regrowth.


Is an eyebrow slit permanent?

No, eyebrow slits are not permanent. Eyebrow hair typically grows back within a few weeks to a few months, depending on factors like age and genetics. While regrowth time varies for each individual, with proper care and patience, the slit will eventually fill back in.

Can eyebrow slits be natural?

Yes, eyebrow slits can occur naturally due to scars or injuries in the eyebrow area. These naturally occurring slits often result from accidents, surgeries, or other forms of trauma that prevent hair from growing back in certain sections of the brow.

Is an eyebrow slit attractive?

Eyebrow slits have become a trendy fashion statement, particularly among younger people. Depending on the culture, slits can symbolize beauty, individuality, or even spiritual or religious beliefs. Whether or not they are considered attractive often comes down to personal preference and style.


In summary, eyebrow slits do grow back, but the time and success of regrowth depend on several factors like genetics, age, and overall health. While it typically takes about 2 to 4 weeks for slits to fill in, using growth serums, maintaining a healthy diet, and gently massaging the area can speed up the process. Avoid over-plucking or shaving during this time to give your brows the best chance to recover fully. Patience is key, but with the right care and a little time, you'll see your brows bounce back.

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