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Explains that if you looked at the molecular structure of castor oil, you'd see that it's a glycerol with a long-chain fatty acid. Simply put, fatty acids are excellent at nourishing hair follicles. The outer layer of the hair shaft is covered in tessellating, scale-like structures called cuticles, and when the hair is damaged, those become flayed and flared, resulting in frizz and dullness. Castor oil, however, "can seal and allow the cuticle to lie flatter," according to Clay, resulting in better shine and decreased frizz.
Scientifically Proven Ways to Grow Thicker Hair: Top 8
He has since consulted for P&G, Neutrogena, Skin Ceuticals, Cerave, EltaMD, Skin Medica, Fast Beauty Co., and 86 Elm. Dr. Rebecca Marcus is a board-certified dermatologist who specializes in medical, surgical, and cosmetic dermatology. She has nearly two decades of experience and completed her residency along with a clinical research fellowship at Columbia University. Since then, in addition to practicing dermatology, she has founded her own skincare line, Maei MD. I can't even begin to explain the depth of my love for this hair mask. Once a week, I coat my curls in this subtly scented mask, pop a shower cap over it, and wash it out after about 20 minutes.
Castor Oil for Hair Growth: The Truth, According to Experts in 2024 - Allure
Castor Oil for Hair Growth: The Truth, According to Experts in 2024.
Posted: Tue, 05 Mar 2024 08:00:00 GMT [source]
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In fact, a survey from 1999 found that 93% of midwives in the U.S. used it to induce labor. But while some studies have shown it might help, others have not found it to be effective. If you’re pregnant, don't try castor oil without talking to your doctor. The only FDA-approved health use for castor oil is as a natural laxative to relieve temporary constipation. Because the method of starting with roasted beans was developed in Jamaica, black castor oil is often referred to as Jamaican black castor oil. It can be used more often, though I didn’t see any increased results with using it daily.
Benefits of Castor Oil for Hair and Skin
If you're allergic to the castor plant, you could have itching, swelling, or rashes if you apply the oil to your skin. In fact, using castor oil in your hair could cause a rare condition called felting, which is when your hair becomes so tangled it has to be cut off. Derived from the seeds of the castor bean (Ricinus communis), castor oil has industrial applications as a lubricant as well as use as an additive in cosmetics and foods. Both Dr. Green and Emmanuel agree that less is more when it comes to using the oil.
Does castor oil for hair growth really work? We asked dermatologists to find out - CNN Underscored
Does castor oil for hair growth really work? We asked dermatologists to find out.
Posted: Thu, 25 Jan 2024 08:00:00 GMT [source]
It can be difficult to decipher which are viral but baseless trends versus those that can truly deliver stellar hydrating, soothing, and strengthening results for your strands. The biggest risk of using castor oil on your hair is potential scalp acne and build-up, since it’s so rich and occlusive. Castor oil is a vegetable oil derived from castor beans that’s usually colorless, but can also be yellow or deep brown, depending on how it’s made. Jamaican black castor oil is one of the more popular variations and has a thicker consistency, due to the fact that it’s boiled with ash, giving it a warm, roasted scent. It seems as if every other day there's a new skin or hair ingredient en vogue that's suddenly deemed the miracle worker we've been waiting for. Considering that we live in the age of TikTok and light-speed trend cycles, this isn't necessarily surprising, but it does make us question what does and doesn't work.
Drugs & Supplements
There is no scientific evidence showing that castor oil can promote hair growth. Some people claim castor oil's benefits for hair are related to its potent antioxidant and anti-inflammatory properties. Antioxidants keep free radicals from damaging the body's healthy cells. This destructive process is called oxidative stress, and it's linked to many health effects, including hair loss. I have recently been using the lamp as a means of Castor Oil application, with the thought that it might produce deeper penetration (and much less mess) than simple Castor Oil packs. I just slap some on my skin and apply the light for 20min-1hr, then wipe/wash it off.
Note that the numbers in parentheses (1, 2, etc.) are clickable links to medically peer-reviewed studies. Before bed, dip a clean spoolie brush or Q-tip lightly in castor oil (you only need the smallest amount) and carefully swipe it along your lash line, making sure to avoid getting it in your eye. In the morning, wash your face with your regular cleanser to remove any excess oil. Castor oil is best used on those with dry or flaky scalps and brittle hair—it is an oil, so it might be overkill for use on those who already have oily hair.
Applying Castor Oil to Eyebrows and Eyelashes
Your hair can grow up to half an inch per month, as hairstylist Patricia Williams has previously told Cosmo. But that’s if you’re prioritizing nutritious foods, incorporating positive coping mechanisms for stress, and keeping your scalp and hair consistently moisturized. And even then, it can take up to 90 days to see a long-term change in the health of your hair, explains Hill. There's also anecdotal evidence to suggest it can be effective on the eyelashes and eyebrows.
Side Effects of Using Castor Oil on Hair

Pros like Chaz Dean, founder of WEN and celebrity hairstylist and colorist, tout the benefits of the ingredient. “Castor oil used to be a guarded secret to help hair growth and I got on the train a long time ago when creating my brand. Now it’s well known and trending because it truly does work miracles! “With careful application, the oil can provide improved growth to hairs with shorter growth phases such as lashes and brows, which tend to fall out naturally at about 100 days,” says Dr. Thosani. She recommends using a clean mascara wand, spoolie, or brow brush for precise application.
Then, apply a small amount of castor oil to your hair by rubbing it together in your hands and distributing it evenly over the ends of your hair. Adding it to your ends will help lock in hydration and shine that you might otherwise be missing. When it comes to maintaining healthy-looking hair and caring for your scalp, there are so many products and DIY treatments to choose from.
When it comes to hair growth, though, you'll have to dig deep for a little more patience. "For people who will benefit, I have seen positive results typically after six to eight weeks of use," he says. This product is a great option if you love the fresh, soothing scent of lavender. Customers also write that the product is great for sensitive skin and scalps, and never causes irritation. This article is based on scientific evidence, written by experts and fact checked by our trained editorial staff.
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