Lemme sold out in one week. Not a limited drop. Not a collaboration. The entire initial inventory of Kourtney Kardashian’s supplement brand vanished from shelves seven days after launch. Kourtney Kardashian net worth sits at approximately $65 million in 2026, making her the fourth-richest member of the Kardashian-Jenner dynasty. However, Lemme might be the asset that changes that ranking fastest.
The elder Kardashian sister has always been the family’s wellness obsessive. The one who argued for sugar-free candy at children’s parties. The one whose clean-eating standards made even Kim roll her eyes on camera. That reputation, cultivated over 15 seasons of reality television and millions of Instagram posts, became the foundation for a supplement company that Yahoo Finance named a 2025 Brand of the Year honoree.
How Kourtney Kardashian Net Worth Was Built
The Kardashian wealth engine is well documented but worth disaggregating. Kourtney earned approximately $4.5 million per season of Keeping Up with the Kardashians across 15 seasons. That’s roughly $67 million in reality TV earnings alone, though taxes, agent fees, and manager commissions (Kris Jenner reportedly takes 10%) reduce the take-home significantly.
Beyond television, Kourtney co-owned the DASH fashion boutiques with Kim and Khloé until they closed in 2018. She launched Smooch, a children’s clothing boutique, with Kris Jenner. She participated in a fashion line for Bebe. Each venture contributed incremental revenue but none became a significant standalone business.
The real shift in Kourtney Kardashian net worth trajectory came with two launches: Poosh in 2019 and Lemme in 2022. Poosh, a lifestyle and wellness content platform, established Kourtney’s authority in the wellness space. Lemme monetized that authority into actual revenue.
The Supplement Brand Driving Kourtney Kardashian Net Worth
Lemme launched in September 2022 with three core gummy supplements targeting gut health, sleep, and focus. The brand name came from a linguistic tic Kardashian and her team couldn’t stop using: “Lemme focus on this,” “Lemme sleep on this.” Once they noticed the pattern, no one could get it out of their heads.
The product line has since expanded to include colostrum gummies, immunity blends, probiotics, anti-bloating formulas, and a vaginal health gummy called Lemme Purr that generated both massive sales and predictable controversy. Lemme is sold at Sephora, Ulta Beauty, and Target, giving it retail distribution that most supplement startups spend years pursuing.
Revenue estimates for Lemme alone exceed $10 million, and the brand’s growth trajectory suggests that number will multiply rapidly. Each new product launch generates an Instagram moment, which generates press coverage, which generates sales. The Hulu reality series The Kardashians provides a built-in marketing pipeline that costs Kourtney nothing beyond showing up to film.
The Celebrity Supplement Trust Deficit
Lemme’s success exists in tension with a growing credibility problem. A class-action lawsuit alleged false advertising for some of Lemme’s health claims. Gynecologists publicly questioned the scientific basis for Lemme Purr. Health professionals consistently argue that celebrity supplement brands exploit consumer trust without providing adequate clinical evidence.
This criticism echoes a pattern visible across the celebrity wellness landscape. Gwyneth Paltrow’s Goop paid $145,000 in civil penalties for unsubstantiated claims. The Kardashian sisters themselves were named in a $5 million class-action lawsuit in 2012 for promoting QuickTrim diet supplements with deceptive marketing. The wellness industry’s regulatory environment allows brands to make soft health claims that stop just short of the line the FDA would enforce.
For Kourtney, the calculus is straightforward. Her audience doesn’t trust the medical establishment any more than the medical establishment trusts her. They trust her. And as long as the gummies taste good, the packaging photographs well, and the restocks sell out, the trust deficit doesn’t affect the revenue line.
Kourtney Kardashian Net Worth in the Family Context
Among the Kardashian-Jenner family, Kourtney ranks fourth in net worth. Kim leads at approximately $1.9 billion, driven primarily by SKIMS (valued at $5 billion after a November 2025 funding round). Kylie Jenner follows at approximately $710 million via Kylie Cosmetics and her clothing brand Khy. Kris Jenner’s $170 million management empire takes third. Kourtney’s $65 million places her ahead of Khloé ($60 million) and Kendall ($60 million).
However, Kourtney’s growth vector may be the steepest in the family. Kim’s SKIMS is already valued in the billions, meaning incremental gains are proportionally smaller. Kourtney’s Lemme is still in early-stage growth, with massive retail expansion ahead and product categories still untapped. The supplement industry’s projected growth to $430 billion by 2035 provides enormous tailwind.
What Kourtney Kardashian Net Worth Reveals About Celebrity Supplements
The Lemme story illustrates the modern celebrity supplement equation. Step one: build an audience through content like reality TV, Instagram, and YouTube. From there, establish wellness credibility through consistent personal branding, then launch products the audience already associates with your identity. Finally, leverage existing retail relationships and press coverage to scale faster than any startup without a famous founder could.
It’s the same playbook that AG1 uses with podcasters and that every podcast host with a supplement deal follows. The difference is that Kourtney doesn’t need to pay for the endorsement. She is the endorsement. Her face, her family, her reality show, her Instagram, all free media for Lemme.
At $65 million and climbing, Kourtney Kardashian net worth reflects a fundamental truth about the wellness economy: the best supplement in the world doesn’t matter if nobody trusts the person selling it. And the worst supplement in the world can sell millions if they do.