Eyebrow Serums That Deliver Real Results | As Featured in Allure

Dr. Alexandra Bowles expands upon her insights from her recent Allure feature, “The Best Eyebrow Growth Serums for Fuller, Fluffier Brows.” She shares everything we need to know to choose the right eyebrow growth serum for fuller-looking brows.

Does eyebrow growth serum actually work?

Brow serums can indeed improve the appearance and fullness of eyebrows, but their effectiveness depends on several factors, including the serum’s active ingredients, genetics, age, and the cause of brow thinning. Serums that contain prostaglandin analogs are often highly effective, as they stimulate hair growth by prolonging the anagen (growth) phase of the hair cycle. Other ingredients like peptides help strengthen the hair shaft, while biotin and vitamins promote keratin production, fostering healthier growth. However, factors such as genetics, age, hormonal imbalances, or over-plucking can influence the results. If you have significant brow thinning, it may be worth consulting a dermatologist for advanced treatments like platelet-rich plasma (PRP) therapy.

How long does it typically take to see noticeable results from an eyebrow growth serum?

It typically takes between 4 to 12 weeks to notice visible results from a brow serum. The exact timeline depends on factors such as the specific product used, your individual hair growth cycle, and your consistency with application. Many people start seeing subtle improvements in thickness around 6 weeks, with more significant changes often occurring around 3 months. Brow serums stimulate hair follicles by extending the anagen phase, so new growth takes time to become visible. It’s important to be consistent with use and to have realistic expectations, as results can vary. If significant improvement isn’t seen after a few months, consulting a dermatologist might be a good next step.

Are the effects of brow serums permanent, or do they require continuous use to maintain fuller brows?

The effects of brow serums are not permanent and require continued use to maintain fuller brows. Once you stop using the serum, the hair will typically return to its natural growth cycle, and the benefits may gradually diminish. Because brow serums work by stimulating hair follicles to stay in the active growth phase, discontinuing use can result in slower hair growth or thinning. Consistent application is key to maintaining results. If you’re looking for more permanent solutions, prescription treatments or other dermatological procedures may be worth considering.

Can brow serums help regrow hair in areas with significant hair loss, such as scars or overplucked spots?

Brow serums can help improve the appearance of thinning brows and may promote regrowth in areas with mild to moderate hair loss. However, their effectiveness is limited in areas with significant hair loss, such as scars or heavily overplucked spots. This is because scarring can damage the hair follicles, preventing regrowth. While brow serums can stimulate healthy follicles, scar tissue often lacks the necessary structure for hair regeneration. For more severe hair loss, treatments like microneedling, platelet-rich plasma (PRP) therapy, or hair transplants may be more effective. A dermatologist can assess your condition and recommend the best course of action.

Do lifestyle habits, like diet or stress levels, impact the effectiveness of brow growth? 

Yes, lifestyle habits like diet and stress levels can significantly impact brow growth. A well-balanced diet rich in biotin, Vitamin E, Vitamin D, zinc, iron, and protein supports healthy hair follicles and encourages better hair growth. Nutrient deficiencies can hinder the growth process, leading to weaker or slower-growing brows. Conversely, chronic stress can increase cortisol levels, disrupting the hair growth cycle and causing hair shedding, including in the brows. Managing stress through relaxation techniques, getting adequate sleep, and maintaining regular exercise can help optimize brow growth and improve the effectiveness of brow serums.

Dr. Bowles’ Top Picks for Eyebrow Growth Serums:

1. 1. neuBROW® Brow Enhancing Serum – Available on Nordstrom, this serum helps to enhance brow fullness and texture. It combines peptides, biotin, and keratin to nourish and stimulate hair growth. Typically, users see results within 30 days of consistent use, and its lightweight, fast-absorbing formula ensures ease of use.
   2. Anastasia Beverly Hills Brow Genius® Conditioning Serum – Also available at Nordstrom, this vegan, cruelty-free serum contains six active ingredients, including peptides and botanical oils. It promotes fuller, softer brows by supporting follicle health and encouraging both thickness and manageability. Its non-greasy, lightweight formula makes it perfect for use under makeup.
   3. GrandeBROW 2-in-1 Tinted Brow Gel + Brow Enhancing Serum – This versatile option from Nordstrom combines instant brow volumizing with long-term growth benefits. The tinted gel offers immediate definition, while the serum works to nourish and thicken brows over time. It’s ideal for those seeking both short-term and lasting results.