Christie Brinkley's daughter doesn't want to be compared to her mother.

The 62-year-old model's 18-year-old daughter, Sailor, has hit back at social media trolls who have slated her appearance, and has admitted she doesn't want to her or her siblings to be pitted against her parent because she thinks the ''competition'' is ''toxic and unhealthy''.

The blonde beauty took to social media to blast bullies, which saw her post a screenshot of negative comments she had received about her appearance and her education.

She captioned the post: ''Alright alright. This is going to be super long and super rant-y. Im sorry in advance. So, I usually never read the comment section under any stupid article about me.. And when i do i usually never take the comments to heart.. But i am so fed up.

''First of all- everyone needs to stop putting me and my siblings and me and my mother in competition. I believe comparison will kill you. Comparison to others is toxic and unhealthy.. As long as I am happy healthy and kind to others why should i care if i am not as 'pretty' as someone else ? Let alone not as 'pretty' as my own blood relatives? (sic).''

And Sailor - who is signed to IMG Models - has revealed she has been plagued by the mother-daughter comparison for years and has been meaning to voice her opinion on the matter for years.

She continued: ''And lastly.. The subject i have been meaning to touch on publicly for years- stop. comparing. me. to. my. mother. Believe it or not I am my own person with my own beliefs and own thoughts and my own face! Eyes smile teeth forehead! All mine! The whole shabang! Yes i am so fortunate that my mother is my mother.. And she will always be an inspiration to me... But being constantly compared to her 50+ years of success at only 18 years old? And being told I could never amount to what she was and what she looks like? Doesn't feel great. I just will never understand these people who WANT to make me feel badly, who WANT to tell an 18 year old girl she cant follow her dreams because if she does she WONT BE AS GOOD AS HER MOM WAS. (sic).

And the mother of three - who also has 30-year-old daughter Alexa and 21-year-old son Jack - has praised her youngest child for sticking up for herself.

She wrote on her Instagram account: ''If you're reading this on a smart phone, You are holding a powerful tool in the palm of your hand. It has the power to shape people's lives, self esteem,and confidence. It can make them feel good, or scar them for life. Let's all choose to use this machine to make the world a kinder more beautiful place. Let's choose to create beauty, through mutual respect, compassion and love. Bravo @sailorbrinkleycook sometimes when we stand up for ourselves, we are standing up for each other. I think we're one post closer to A kinder world. (sic).''