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

Exclusive: Kourtney Kardashian Launches Supplement Inspired by Breast Milk

Kourtney Kardashian spoke to The Post about her latest supplement launch while starring alongside her sister Kim in a new campaign. This marks the first time Kim appears in a Lemme brand ad, playing a lawyer prosecuting Kourtney for not sharing the product before its release.

New Lemme Colostrum Supplements

Kourtney introduced a new addition to her Lemme line featuring gummy and liquid colostrum supplements inspired by human breast milk, aimed at supporting beauty and gut health.

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

“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.”

Campaign Highlights with Kim Kardashian

The promotional video humorously frames Kim Kardashian as a lawyer taking Kourtney to court for not sharing the colostrum supplements before their public launch, adding a playful sibling rivalry element to the campaign.

This launch showcases Kourtney's ongoing commitment to health and wellness through innovative, accessible products.

Author’s summary: Kourtney Kardashian expands her Lemme brand with colostrum-based supplements, creatively involving Kim in a playful ad that highlights gut and immune health benefits.

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