Kylie Jenner Shared Her Exact Boob Job Details — Here's What They Mean

Elle

06-06-2025

Kylie Jenner used to be secretive about her plastic surgery procedures and tweakments—who can forget when she denied lip filler rumors up until 2015? But now that Jenner is older and society's views on cosmetic surgery have changed, the Khy founder has turned into an open book.
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Case in point: A fan recently took to TikTok to ask Jenner about the details behind her breast augmentation. 'Girl, please can you just tell us what it is that you asked for when you had your boobs done,' the TikToker Rachel Leary said in a video. She goes on to call it the most 'perfect, natural-looking boob job ever.'
Jenner herself commented on the TikTok with the details: '445 cc, moderate profile, half under the muscle!!! Silicone!!! Garth Fisher!!! Hope this helps lol.' If you're wondering what exactly that means—for your own knowledge or because you're hoping to take Jenner's words to your plastic surgeon—we spoke with a few experts to break it all down.
'445 cc is the size, measured by volume,' says John Diaz, MD, a Beverly Hills-based board-certified plastic surgeon. 'A 'cc' means cubic centimeters.' A large implant is often considered to be anything over 400 cc, so 445 cc is a fairly substantial augmentation. While it can't be directly translated to a new cup size (as it depends what you're starting with), you can expect a 445 cc implant to add close to two cup sizes to your initial breast volume.
When you're getting a breast augmentation, the 'profile' is how much the implant juts out from your chest while you're standing. 'When it comes to profiles, there are different types, such as low, moderate, and high, which are decided upon based on the patient's anatomy and the goal they're trying to achieve,' explains Lyle Leipziger, MD, chief of plastic surgery at North Shore University Hospital and LIJ Medical Center. A moderate profile breast implant is typically considered one of the most natural profiles to get, and will have slightly more projection than a low-profile implant but look more natural than some of the higher-profile options.
'Many breast augmentations today are dual plane, meaning part under the muscle and part under the lower breast tissue,' Leipziger adds. In a dual plane breast augmentation, the upper part of the breast implant is inserted below the pectoral muscle, while the lower part is just under the breast tissue. 'Half under the muscle' is considered one of the most natural-looking placement methods.
When Jenner says 'silicone,' she's talking about the material of the implant she used. There are many different options, including saline implants (which are filled with salt water), gummy bear implants (which are thicker than traditional silicone implants), and silicone implants (which Jenner has). Silicone implants are filled with silicone gel and are meant to feel the most like natural breast tissue. 'This implant is likely an Allergan implant, which is the most common implant used at our facility,' says Oren Tepper, MD, board-certified plastic surgeon and founder of Greenwich Street 497. 'One of the advantages of Allergan implants are the three cohesive [silicone] gel options, which provide a natural feel and look, and the wide range of options provided, which can be tailored to each patient's specific anatomy.' Word to the wise: If you want silicone implants too, you may need to have more check-ups with your doctor to get an MRI to make sure the silicone isn't leaking into your body.
In a world where plastic surgery is becoming increasingly common, Jenner's transparency is perhapsrefreshing—and makes talking to your own plastic surgeon about what you want just a little bit easier.
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Katie Berohn is ELLE's beauty editor. Previously, she held the same title at Who What Wear, where she was promoted from associate beauty editor. She's written for publications like The Cut, Cosmopolitan, Good Housekeeping, and Mashable. Her interests include fragrance, vintage shopping, hot yoga, food, travel, music, books, and attempting to make every NYT Cooking recipe. She's on the endless hunt to find the perfect shade of red lipstick.