Eyebrow serum: Everything you need to know for fuller brows

• How did eyebrow serum come about and what is it?
• Do eyebrow serums really work?
• How do eyebrow serums work?
• Tips for choosing a safe eyebrow serum

• An eyebrow serum stimulates hair growth and helps achieve fuller, thicker eyebrows.
• Effective eyebrow serums contain active ingredients such as growth factors, prostaglandin analogues, and peptides that prolong the growth cycle of eyebrow hairs.
• With daily use of a high-quality eyebrow serum, visible results can be expected within 4 to 8 weeks.

The first generation of hair growth serums emerged in the early 2000s when doctors noticed that patients using the drug bimatoprost (used to treat glaucoma, among other conditions) experienced a striking side effect: longer and fuller eyelashes.

This discovery led to the development of eyelash serums containing prostaglandin analogues, the first commercial application of which was Latisse (FDA-approved in 2008). Consumers and brands quickly saw the potential of using this growth formula not only for eyelashes, but also for eyebrows—especially for people with overplucked, thinning, or barely visible eyebrows.

The first specific eyebrow serums appeared around 2010–2012, when beauty brands began developing customized formulas targeting the skin and hair growth around the eyebrows.

An eyebrow serum is a specially formulated liquid designed to stimulate the growth of your eyebrow hairs and improve the thickness and fullness of your eyebrows. It is applied to the skin beneath the eyebrows, often daily, and contains active ingredients that target the hair growth cycle, strengthening existing hairs and stimulating new hair growth.

Yes, eyebrow serums can really work, but the results depend on the specific formula, the ingredients and your own hair growth cycle. Many people experience noticeable improvements in the fullness and density of their eyebrows after consistent use of a quality eyebrow serum. Here are ingredients that determine whether an eyebrow serum can be effective for you:

Eyebrow serums contain active ingredients that promote hair follicle health and stimulate hair growth. These ingredients can be divided into two groups, conditioning and hair growth stimulating ingredients.

The most common are:

• Growth factors and prostaglandin analogues: These substances affect hair growth and ensure that hairs remain in the growth phase for longer. Regular use of a serum can stimulate weaker or inactive hair follicles to grow hair again. In addition, existing eyebrow hairs can become stronger and thicker, leading to a fuller appearance.
• Peptides: These help strengthen hair follicles and promote growth.
• Plant extracts: Can have a conditioning effect or dilate the blood vessels of the hair follicles, leading to hair growth.

• Biotin and keratin: These vitamins/building blocks support healthy hair growth by replenishing or stimulating the nutrients needed for hair.
• Nourishing oils and humectants: Castor oil and other natural oils are known to nourish the hair follicles and make eyebrow hairs look fuller (often due to their moisturizing properties).

• Ingredients: Choose a serum with proven effective and safe ingredients such as peptides, prostaglandin analogues, and plant extracts. Prefer formulas with a short, targeted formulation.
• Time until first results: A high-quality serum will give visible results after 4-8 weeks. If you don't see results within this time, you may have a safe but unfortunately ineffective serum.
• Reviews: Read other users' experiences to get a better idea of the product's effectiveness.
• Value for money: A more expensive serum is not always better; compare the price in combination with the quantity in ml and the reviews available online.
• Buy from a reliable seller: Avoid counterfeit products by buying from recognized stores or webshops.

A brow serum can be an effective way to achieve fuller and healthier brows. With consistent use and choosing a quality product, you can achieve visible results within a few weeks. As with any skincare product, patience and regularity is the key to success.