The idea for Cyriac Lefort’s new startup, MyHair AI, came to him two years ago. Lefort, 32, recalls how the Frenchman was sitting in a New York hair salon getting a routine haircut when the hairdresser looked at him and said, “You’re starting to lose some hair.”
“He didn’t say that to his friend sitting next to him, he only said it to me,” Lefort continued. “In my mind, I wasn’t bald and I still don’t think I am bald. But if someone tells you that you’re losing your hair, you’ll buy whatever that person recommends.”
So he bought the shampoo recommended by his hairdresser and went home thinking that anyone who said their hair was falling out could sell something to a man. “Hair loss is a very emotional subject for both men and women,” he said.
That interaction led him down the rabbit hole and how confusing the hair removal industry was, with clinics full of misinformation and unverified reviews. (He then went to a hair doctor and was told he wasn’t actually bald.)
Lefort wanted to create a product that uses AI to help diagnose hair loss in men.
Mr. Lefort is a serial entrepreneur who left one company and now runs two others with 28-year-old Tilen Babnik. The two decided to team up and form their third company, MyHair AI. They vibecoded the product in just a few weeks. It works like this: Users take a photo of their head and upload it to the MyHair app. AI technology analyzes these photos to measure hair density and detect early signs of hair loss.
As users upload more photos, the AI will track hair loss progression over time, allowing users to build a personalized hair loss prevention routine. Users can also find specialists and clinics through the platform and read verified reviews to avoid being scammed.
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“Our AI tells you what’s really going on with your hair, matches you with products that are actually suitable for your hair type, and explains the science behind it, including possible side effects,” Lefort said. “We believe that by bringing transparency and medical precision to this $50 billion market, we can completely reshape the way people understand, treat, and purchase hair health.”
By the time we were ready to launch MyHair.AI, it took about a year of ideation, weeks of vibe coding in Cursor, months of scientific and clinical validation, and several more weeks of building the consumer app. The company launched this summer.
“We didn’t hire anyone for the first prototype; it was completely vibe-coded,” he says, adding that now that the product has grown, the company’s engineers work with the code to make sure it’s robust and scalable. MyHair AI is one of many examples of how startups can build quickly with the rise of vibecoding prototypes.
Lefort said the product already has more than 1,000 paid members and 200,000 user accounts. The app analyzes over 300,000 scalp photos and has partnerships that give specialists and clinics access to MyHair AI so they can assess their own patients faster. The company announced Wednesday that Dr. Tess, a renowned dermatologist, will join the company’s board of directors.
Other companies in the market include Hims, among others. Lefort said MyHair is different because it is one of the few that has built a dedicated AI model trained on more than 300,000 hair images to diagnose baldness, rather than using a more general-purpose LLM.
Lefort said the company is currently focused on expansion. The company hopes to build a reservation platform and partner with more clinics. He wants to build AI that works in the “real world.”
“Men are concerned about two health issues: sexual dysfunction and hair loss,” Lefort says. “We address one of the biggest concerns of the day.”
