April 21, 2015 5:17 PM EDT

Kylie Jenner from Keeping Up With the Kardashians urged fans to be themselves Tuesday afternoon in light of the viral hashtag #KylieJennerChallenge. Teens are posting photos of themselves sticking their lips in small glass containers and sucking as hard as possible in an attempt to mimic the reality TV star’s signature pout.

I want to encourage people/young girls like me to be YOURSELF & not be afraid to experiment w your look. ❤️❤️❤️

— Kylie Jenner (@KylieJenner) April 21, 2015

I'm not here to try & encourage people/young girls to look like me or to think this is the way they should look. (Cont...)

— Kylie Jenner (@KylieJenner) April 21, 2015

Doctors warn that such “DIY plumping” can cause swelling, bruising, infections and permanent disfigurement.

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Write to Olivia B. Waxman at olivia.waxman@time.com.

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