Marie Claire UK Marie Claire UK
  • Fashion Fashion
      • Fashion
        • View all Fashion
        • Fashion Trends
        • Shopping
        • Watches and Jewellery
        • Fashion News
  • Beauty Beauty
      • Beauty
        • View all Beauty
        • Fragrance
        • Hair
        • Make Up
        • Skincare
        • Nails
        • Marie Claire Beauty Awards
  • Health Health
      • Health
        • View all Health
        • Fitness
        • Nutrition
        • Female Health
        • Wellbeing
  • Life Life
      • Life
        • View all Life
        • Opinions
        • Travel
        • Sustainability
        • Weddings
        • Money & Work
        • Competitions
  • Culture Culture
      • Culture
        • View all Culture
        • TV and Film
        • Celebrity News
        • Books
        • Royal News
  • Vouchers Vouchers
      • Clothing
        • View all Vouchers
        • Mint Velvet
        • Karen Millen
        • H&M
        • nobody's child
        • ASOS
        • ARKET
        • MANGO
      • Designer Clothing
        • View all Vouchers
        • Reiss
        • THE OUTNET
        • SSENSE
        • Mytheresa
        • Liberty London
        • Selfridges
        • Farfetch
      • Accessories
        • View all Vouchers
        • AllSaints
        • Aspinal of London
        • Charles & Keith
        • River Island
        • FitFlop
        • Kate Spade
        • Vagabond
      • Jewellery
        • View all Vouchers
        • Pandora
        • Abbott Lyon
        • Goldsmiths
        • Beaverbrooks
        • Astrid & Miyu
        • Swarovski
        • Angara Jewellery
      • Beauty
        • View all Vouchers
        • Sephora
        • Cult Beauty
        • Space NK
        • Dyson
        • Clarins
        • Look Fantastic
        • Clinique
      • Activewear
        • View all Vouchers
        • Lululemon
        • Gymshark
        • Sweaty Betty
        • Nike
        • adidas
        • New Balance
        • Helly Hansen
  • NEWSLETTER Signup to our newsletter
  • logoCreated with Sketch.
    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!


    By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

    You are now subscribed

    Your newsletter sign-up was successful


    An account already exists for this email address, please log in.
    Trending
    • Women in Sport 2026
    • Marie Claire Masters
    • Autumn Winter 2026
    • Nail Trends 2026
    • Best Investment Bags
    • Best Perfumes
    • Digital Issues
    • Women Who Win
    1. Beauty
    2. Hair

    Yes, castor oil *can* lead to longer, thicker hair—here's how

    Why you should consider adding castor oil to your hair routine, pronto

    Dionne Brighton's avatar
    By Dionne Brighton
    Published 15 August 2023 In Features

    When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

    Woman in a matching pink tweed suit and black glasses, looking a way from the camera with wavy hair over her shoulder
    (Image credit: Getty Images)
    • Facebook
    • X
    • Pinterest
    Share this article
    Join the conversation
    Follow us
    Add us as a preferred source on Google
    Subscribe to our newsletter

    Castor oil for hair has been used for centuries, claiming its place as one of the best hair oils for growth, shine and hydration. And with hair oils doing the rounds on social media as of late (TikTok's rosemary oil for hair growth, we're looking at you), it seems as though humble castor oil is destined for a popularity resurgence. 

    Slowly but surely, castor oil is finally getting the recognition it deserves. #Castoroil currently has over 725 million views on TikTok not only because of its nourishing skincare benefits, but also because it is considered to be one of the best oils for hair growth.

    Similarly to argan oil, castor oil has so many supposed benefits for our scalp and strands that it's hard to know what is fact and what is TikTok fiction. So, in a bid to clear things up, we asked the experts to give us the lowdown on castor oil's benefits and the best way to use it—because I'm not trusting another TikTok hair-oiling video.

    What are the benefits of castor oil for hair?

    "Castor oil use dates back to ancient Egypt, where some of its various hair benefits were discovered. Rich in multiple fatty acids such as ricinoleic and omega 6 & 9, castor oil helps to replenish, nourish and condition the hair as well as lock moisture in," explains Dr. Catherine Leray, Head of Research and Development at THG LABS, where Grow Gorgeous products are developed.

    Can castor oil help hair grow?

    If you were to believe social media, content creators would have you believe that castor oil can make hair grow faster, longer and more healthily—but this isn't totally true. While castor oil can't lead to more hair growing on your hair, what it can do is create a good growing environment for existing follicles to produce hair, and help strengthen strands to prevent breakafe.

    You may like
    • selection of the best pre-shampoo treatments tested by Marie Claire UK If Your Hair Still Feels Lacklustre No Matter What You Try, a Pre-Shampoo Treatment Could Be What’s Missing
    • The long hair trend and the post-bob era I’ve Spent Two Years Growing My Bob—Turns Out, There's a Reason Long Hair Is Trending
    • Heatwave hair loss and seasonal hair shedding Heatwave Hair Shedding Is Real—Here’s How a Dermatologist Recommends Protecting Your Hair and Scalp

    "Castor oil can improve the look of your eyelashes, hair and eyebrows. It hydrates moistures and prevents breakage. It has high levels of essential fatty acids that can help with the healing of hair and skin," explains Dr Nick Fisherman, trichologist at Watermans Hair.

    But that's not to say it can kickstart hair growth. "Castor oil may be beneficial for hair, although there is very little evidence to suggest it helps with hair growth," says Leading Hair Transplant Surgeon, Dr Furqan Raja of The Private Clinic. “People do claim it can increase blood flow to the scalp to promote hair growth. I have seen little evidence for this, but I would say it can help moisturise a dry scalp, which can lead to healthier hair in the long run. It can help to soften the hair.”

    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!

    By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

    Dr Raja tells us if you do want to try using castor oil for hair, you would just need to rub a few drops into your scalp and you could try massaging a few drops into the ends of the hair to protect against breakage. “I wouldn’t recommend using it more than once a week because it can cause a build-up of oil," he says.

    “Hair loss itself is a very complicated issue and can be caused by a wide variety of things so if you are suffering with hair loss, it is best to see an expert who specialises in hair loss to come up with a scientific treatment plan. However, using a bit of castor oil for hair health won’t do any harm," explains Dr Raja. 

    How to use castor oil for hair

    Because castor oil can work its magic in so many ways, you might be tempted by TikTok to opt for castor oil in it raw form. Expert hairstylist, Vincent Allenby, warns that using the oil in its raw form (if you do manage to get hold of it) is not necessarily the best idea. "If using it on your hair make sure it is diluted with something such as argan oil or jojoba oil as on its own it's too heavy for the hair and could be a little troublesome rinsing," Allenby explains. 

    Our advice? Opt for nourishing hair products that have been formulated with just the right amount of castor oil for optimal results.

    You can use castor oil for hair before washing, as a pre-wash hair oil, on ends after washing or lean on its benefits for sleek styling. Now we are wiser about the benefits of castor oil for hair, keep scrolling for our edit of the best hair masks and hair oils infused with castor oil. 

    The best castor oil hair products

    FABLE & MANE HOLIROOTS HAIR OIL

    Fable & Mane Holiroots Hair Oil
    £32 AT CULT BEAUTY

    I use this as a pre-wash treatment before every wash and I swear by it for healthy strands. Made with the ancient tradition of hair oiling in mind, this oil is made to be a part of a self care routine, and it is simply perfect. Leave on for 10 minutes before you wash or overnight for stronger and smoother hair. 

    Watermans Hair Oil, Camellia & black castor infused hair, scalp & body oil. Natural Hair Oil for dry damaged hair.

    Watermans Hair Oil
    £22.50 AT AMAZON

    If less breakage is the aim, then this is the castor oil product for you. As recommended by Dr Fisherman, you can turn this into a multi-use product and use it on body as well as hair. Add a little bit into the ends for super smooth and hydrated hair. 

    Jamaican Black Castor Oil Intense Moisture Mask

    Jamaican Black Castor Oil Intense Moisture Mask
    £16 AT THE BODY SHOP

    If your hair is dehydrated, then this Jamaican black castor oil mask will hydrate and nourish your curls for more bounce and definition after just a single wash.

    Grow Gorgeous SENSITIVE CERAMIDE RICH HAIR AND SCALP MASK

    Grow Gorgeous Sensitive Ceramide Rich Hair and Scalp Mask
    £25 AT GROW GORGEOUS

    Dr Leray suggests using this as one of the best products infused with castor oil for hair. Apply it before bed and wake up with a calm, soothed scalp and healthier hair. 

    SheaMoisture Strengthen & Restore Shampoo Jamaican Black Castor Oil Sulphate Free Shampoo

    SheaMoisture Strengthen & Restore Shampoo Jamaican Black Castor Oil
    £12.99 AT BOOTS

    A sulphate-free shampoo infused with Jamaican black castor oil, which gently cleanses while hydrating strands. Use it with the matching conditioner for your softest hair yet.  

    AUGUSTINUS BADER THE HAIR OIL WITH TCF8

    Augustinus Bader The Hair Oil
    £39 AT CULT BEAUTY

    One of the best hair oils I've ever used, it's not just the Augustinus Bader patented TFC8 Complex that makes it great, it's infused with castor oil too, which explains why my strands are so silky. The only down side? That eye-watering price tag.

    amika water sign hydrating hair oil

    Amika water sign hydrating hair oil
    £31 AT CULT BEAUTY

    This is an oil with all the oils. The Amika hydrating hair oil is infused with castor oil, jojoba oil, coconut oil and even more added goodness. 

    Jamaican Mango & Lime Black Castor Oil Original

    Jamaican Mango & Lime Black Castor Oil Original
    £6.99 AT LOOKFANTASTIC

    Yes, this is the one you may have seen on TikTok, and it is one of the original castor oils for hair, so we know it's good. It's 100% pure castor oil, so if you were planning on making your own DIY castor oil mask, this is the one you need. 

    Jamaican Black Castor Oil Curl Activator

    Jamaican Black Castor Oil Curl Activator
    £16 AT THE BODY SHOP

    Use a little bit of this cream on damp curls for expert definition. Hair is left feeling hydrated but dries weightless and holds curls for longer.

    Dionne Brighton
    Dionne Brighton
    Social Links Navigation
    Social Media Editor

    Dionne Brighton is the Social Media Editor at Marie Claire UK. After writing about everything from nail trends to celebrity style moments for Marie Claire UK, Glamour UK and Woman & Home, she now leads the brand’s social strategy. Her work transforming Marie Claire UK’s social platforms earned her a BSME Talent Award nomination.

    Read more
    selection of the best pre-shampoo treatments tested by Marie Claire UK
    Hair If Your Hair Still Feels Lacklustre No Matter What You Try, a Pre-Shampoo Treatment Could Be What’s Missing
    The long hair trend and the post-bob era
    Hair I’ve Spent Two Years Growing My Bob—Turns Out, There's a Reason Long Hair Is Trending
     
     
    Heatwave hair loss and seasonal hair shedding
    Hair Heatwave Hair Shedding Is Real—Here’s How a Dermatologist Recommends Protecting Your Hair and Scalp
    Best products for frizzy hair in the rain
    Hair Autumn Rain Wreaks Havoc on My Frizz-Prone Hair—These Are the Products That Keep It Smooth Without Weighing It Down
     
     
    Latest in Hair
    Best products for frizzy hair in the rain
    Hair Autumn Rain Wreaks Havoc on My Frizz-Prone Hair—These Are the Products That Keep It Smooth Without Weighing It Down
    Charlotte Mensah Afro Hair
    Hair Charlotte Mensah Has Spent 40 Years Changing the Conversation Around Afro Hair—Now, Her Legacy Is Going on Display
     
     
    Ata-Owaji Victor on Black Hair
    Hair My Black Hair Doesn’t Need to Be a Political Manifesto—Why I’m Opting Out of the Trauma-or-Triumph Narrative
    The long hair trend and the post-bob era
    Hair I’ve Spent Two Years Growing My Bob—Turns Out, There's a Reason Long Hair Is Trending
     
     
    Latest in Features
    The best things to do this September
    Culture The Agenda: The New-Season Cultural Reset
    Female athletes crossing the finish line at a track and field event
    Fitness Why We Should Care About Sexualisation in Women's Sport—and How It’s Bigger Than Sydney Sweeney
     
     
    NYFW ss27 outfits to wear now
    Fashion I Just Got Back From New York: These 6 Outfits Deserve a Spot in Your Autumn Rotation
    Michelle Obama Liffner bag
    Fashion Michelle Obama Just Wore the Sophisticated Bag Brand Every Fashion Insider is Obsessed With
     
     
    logoCreated with Sketch.
    • Site Archive
    • Contact Future's experts
    • Contact us
    • Terms and conditions
    • Advertise with us
    • Privacy policy
    • Cookies policy
    • About us
    Add as a preferred source on Google Add as a preferred source on Google

    Marie Claire UK is part of Future plc, an international media group and leading digital publisher. Visit our corporate site.

    © Future Publishing Limited Quay House, The Ambury, Bath BA1 1UA. All rights reserved. England and Wales company registration number 2008885.