'I'm a makeup artist and a black eye product could age you by 15 years - it gives you a very severe look'

Ali Andreea said: "There is nothing wrong with being old, with ageing - it's a completely natural process. Don't let society and social media tell you otherwise.

"However, when you add years on to your face because of makeup, that's when I kind of have a problem with it."

In her YouTube video, Ali named the product that will "age" you if applied too much, claiming that "it's going to look really bad".

She also alerted her viewers to an eyeliner mistake that can be prematurely ageing.

Ali stated: "If you're using black around the eyes, that's it - plus five, 10, 15 years even. It not only ages you but it gives you a very severe look."

Many women turn to a black eyeliner pencil in an attempt to "enhance" their eyes, but the expert advised strongly against this.

Instead, women who want to make their eyes "pop" should use mascara, ensuring they apply it from the root of the lash.

They should also find an eyeliner pencil in another colour. According to the expert, browns and taupes work well - "just not black".

For expert eyeliner application, Ali told viewers to go in with the product very close to the upper lash line, creating a tiny wing at the outer corners of the eyes, before smudging it gently with a finger.

Moving on to the lower lash line, Ali advised women to start at the outer corner and draw inwards a little - not as far as the inner corner - before smudging.

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For those who enjoy using dark colours, darker shades of brown and blue work well, the expert advised.

The expert shared a second makeup mistake women make that ages them, claiming that it's the "worst" of all.

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She urged makeup users to avoid using a black pencil on the waterline of their eyes.

She said: "It's a pity for your beautiful, beautiful eyes and your beautiful, beautiful face. I think no one looks good with this."

In other anti-ageing makeup news, a makeup artist shared the contouring technique she would avoid over age 50 because it highlights "hollowness".

Another makeup artist revealed how your concealer could be making you look 10 years older.