Does Castor Oil Grow Eyebrows?

Castor oil has been a popular home remedy for promoting thicker, fuller brows for decades. But does it really work? If you’ve been wondering, “Does castor oil grow eyebrows?”, the answer isn’t entirely straightforward.

In this article, we’ll break down what castor oil can and can’t do for your brows, the science behind it, and tips for using it effectively—plus what to try if you’re looking for faster, more visible results.

Castor oil is a vegetable oil derived from castor beans. It’s rich in fatty acids, especially ricinoleic acid , which is believed to have anti-inflammatory and moisturizing properties.

For beauty purposes, it’s often used on hair, lashes, and brows to help them appear thicker and healthier. Its natural viscosity helps coat each hair strand, locking in moisture and reducing breakage.

Castor oil’s use in beauty rituals goes back thousands of years. Ancient Egyptians reportedly used it to condition hair and brows, while early Ayurvedic medicine included it in treatments for healthy skin and hair. Over time, it became a staple in home remedies worldwide, praised for its nourishing and protective properties.

Today, its role has shifted from a traditional beauty staple to a modern DIY favorite—especially for those seeking fuller, healthier-looking brows without expensive salon treatments.

There’s no definitive scientific evidence that castor oil directly stimulates eyebrow hair follicles to grow. Unlike FDA-approved treatments for hair loss, castor oil hasn’t been clinically proven to create new hair growth.

However, research does support the benefits of ricinoleic acid for scalp and skin health. By keeping hair moisturized and reducing inflammation, castor oil may create a healthier environment for existing brow hairs to reach their full length and thickness.

Anecdotal evidence is strong—many people claim that with consistent use, their brows look fuller and more defined. This could be due to:

• Reduced breakage of existing hairs

• Improved hydration of brow hairs and skin

• Slight darkening of the brow hairs from oil coating

Understanding how brows grow can help you set realistic expectations when using castor oil.

1. Anagen Phase (Growth) – Lasts 4–7 weeks. This is when brow hairs actively grow.

2. Catagen Phase (Transition) – Lasts about 2–3 weeks. Hair growth slows, and the follicle shrinks.

3. Telogen Phase (Resting) – Lasts several months. Hairs are eventually shed to make way for new growth.

Castor oil may help hairs in the anagen phase grow stronger and prevent those in the catagen phase from becoming brittle.

Consistency is key with castor oil. Here’s a detailed application routine:

1. Start with a clean base – Remove all makeup, oils, and skincare from your brows with a gentle cleanser or micellar water.

2. Choose your applicator – Use a clean spoolie for even distribution or a cotton swab for targeted application.

3. Apply a thin layer – Dip your applicator into the oil and wipe off excess to avoid dripping. Brush through your brows, coating hairs from root to tip.

4. Massage lightly – Use your fingertip to gently massage the oil into the skin beneath your brows for 30 seconds. This can help stimulate circulation.

5. Leave it on overnight – Castor oil is thick and works best with several hours of contact time.

6. Rinse in the morning – Use a gentle cleanser to remove any residue.

Pro Tip: Start with every other night if you have sensitive skin, then increase to nightly use.

• Always use 100% pure, cold-pressed castor oil .

• Perform a patch test on your arm 24 hours before applying to brows.

• Avoid contact with eyes, as it can cause irritation.

• Discontinue use if you experience redness, itching, or swelling.

Myth: Castor oil will make new brow hairs grow where there were none before.
Fact: It can improve the health of existing hairs but won’t create new follicles.

Myth: Results happen in a week.
Fact: Brow growth is slow—visible changes may take 6–8 weeks of consistent use.

Myth: All castor oil is the same.
Fact: Cold-pressed castor oil is less processed and retains more nutrients than refined versions.

While castor oil can help condition and protect your brows, it’s not the only option for promoting healthy growth.

• Maintain a nutrient-rich diet with protein, vitamins, and minerals.

• Avoid over-plucking or waxing too frequently.

• Use a targeted growth serum. At Madluvv, we created our Laminate Me+ Brow Gel Serum for our community—especially those with sparse brows who wanted more fullness without harsh treatments. It contains peptides , which are known to support hair health and encourage thicker, denser-looking brows over time. Many of our customers have shared visible improvement after consistent use.

• Keep brows hydrated with lightweight gels or serums to maintain softness and flexibility.

For those who want to maximize results, using castor oil alongside a peptide-rich brow serum can offer both immediate conditioning and long-term strengthening benefits.

A simple routine could look like this:

• Night: Apply castor oil for deep hydration and to create a protective barrier for brow hairs while you sleep.

• Morning: Use Laminate Me+ to deliver active peptides, style your brows, and maintain their lifted, groomed look all day.

This combination works because castor oil nourishes and protects the hair shaft, while Laminate Me+ targets the follicle environment with peptides to encourage denser growth. Together, they address both the appearance and health of your brows—making it a highly effective pairing for anyone serious about achieving fuller brows.

So, does castor oil grow eyebrows? It may not spark brand-new growth in everyone, but it can help existing brows look fuller, healthier, and better conditioned.

If your goal is to see the most visible difference possible, consider combining castor oil with a proven growth formula like Laminate Me+ Brow Gel Serum . With patience, consistency, and the right products, achieving your brow goals is absolutely possible.

If you’re ready to take your brow growth journey to the next level, now is the perfect time to try Laminate Me+ Brow Gel Serum . For a limited time, get $5 off your purchase with code 5GROW at checkout.

Shop now and see why so many in the Madluvv community swear by Laminate Me+ for achieving thicker, healthier brows.