‘I’m 45 and my lashes thickened shortly after I added one product to my skin care - it’s 100% natural’

Castor oil has been touted by skin enthusiasts as a natural conditioner with scores of benefits.

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Liz, a 46-year-old American who launched the YouTube page Stylish and Grateful, has spoken extensively about these perks on her channel.

“I have pretty deep lines on my face because, when I was 38, I stopped using and trying all kinds of anti-ageing things,” Liz told her followers.

“In my 20s and 30s I did try different things and I finally just got tired of it. I embraced ageing and [accepted that] I’m going to have lines.

“I don’t use sunscreen and I haven’t used any kind of product for any really good length of time.

“I have been using the castor oil around my eyes,” explained the content creator. “I have noticed my skin improving around my eyes.

“I cannot believe it because I have bought an expensive eye cream. Just in a small space of time, I am slowly seeing a change, which is crazy to me.”

Castor oil is derived from the bean that grows on castor trees. It is made up of fatty acids thought to be extremely nourishing to the skin, according to Healthline.

The health body says that while there is no evidence that castor oil helps eyelashes grow, studies have shown that the ricinoleic acid which makes up 90 per cent of castor oil can help reverse hair loss.

In some users, this may enhance the appearance of lashes, as Liz claims she noticed hers become thicker and longer in a short space of time.

“The fourth thing that I noticed is my eyelashes are longer and thicker," she said.

"My eczema and my eyelashes were the first two things that I noticed. I have so many more eyelashes.

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"The smaller ones in the inner corner, when I’m putting my mascara on, [I notice] they’re longer and I have more. This happened in a short period of time."

The comments section of the clip was flooded with remarks from users who experienced similar effects using castor oil.

One user wrote: "I am 71 years old and the back of my hands look as if I was OLD. I started using castor oil once or twice a day. After just a few weeks I noticed a real improvement.

"The skin on the back of my hands is so much smoother. The difference is so drastic you can't miss it."