Exclusive | Kourtney Kardashian launches supplement inspired by breast milk — and casts Kim as a lawyer in new ad

Kourtney Kardashian Launches New Supplement Inspired by Breast Milk

Kourtney Kardashian revealed details about her latest product for her Lemme brand: supplements made with colostrum, inspired by human breast milk, designed to support beauty and gut health.

New Product Line

Both products became available on the brand's website starting Thursday, November 7.

Campaign Featuring Kim Kardashian

For the first time, Kourtney enlisted her sister Kim to star in the new campaign. In the ad, Kim plays a lawyer suing Kourtney for not sharing the supplement before its public release, adding humor to the launch.

“I’ve taken colostrum for years because it’s amazing for gut and immune health, but I wanted to make it easier for everyone to enjoy,” Kourtney told The Post. “Some people love the simplicity of a gummy, while others want to add it to their matcha or coffee, so we created both.”

Summary

Kourtney Kardashian introduces Lemme colostrum supplements with sister Kim starring in a playful campaign highlighting their new beauty and gut health products.

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New York Post New York Post — 2025-11-05