For years, Nutrafol has focused predominately on DTC. But now it's taking a big step into retail.

This month, the hair wellness brand started selling in Sephora. It's one of the first big wholesale relationships Nutrafol has made. Though it's been around since 2014, Nutrafol -- which sells supplements to help with hair loss and other health issues like menopause -- has sold predominately on its own site, as well as Amazon and in certain physician offices. This has remained the case even after it got sold to Unilever last year.

According to Giorgos Tsetis, co-founder and CEO of Nutrafol, "the Sephora partnership is really serving as credibility, but also just brand awareness overall." That is, it gets the brand's name in front of more people than it ever could before.

Tsetis joined the Modern Retail Podcast this week and spoke about the company's evolution. Nutrafol started as a laser-focused wellness startup. It had two formulations to help both men and women with hair loss. A few years ago, it expanded to help with more ailments but has aimed to stay true to its promise of providing researched and lab-tested wellness products.

"There's skepticism with supplementation in general," he said. "And that's for the right reason because there are a lot of companies that are manufacturing supplements and making claims that they cannot substantiate." But, he said, Nutrafol has been focused on educating its customers to explain how it works and what exactly it does.

That's easier to do on its own website, but now the company is trying to tell its story to more people by expanding retail channels. But not every channel will have the same expectations as the others. For example, about 85% of the customers on Nutrafol's website are subscribers. That's not the same with Amazon customers. "As we scale, understanding the ratio between these channels is going to be very important," said Tsetis.

For now, the focus is on figuring out how to make each channel work and growing Nutrafol's presence. While the company is dead set on making its Sephora partnership work, it may have some other announcements soon.

"With the Unilever infrastructure and resources available to us, I think the most impactful move in the next few years is going to be about scaling globally," said Tsetis.