The worldwide headquarters of Cure Encapsulations is a multi-family home in Williamsburg, Brooklyn. The company sells a weight-loss supplement called Garcinia Cambogia, and boasts a nearly 5-star rating on Amazon.

“Wow. I’m actually still amazed that it worked way faster than I expected. I have lost 20 pounds by using these amazing capsules,” wrote one reviewer.

“Works brilliantly. I’ve tried other aids, and this one is amount [sic] the best I’ve tried. I saw results in my workout within weeks,” another reviewer said.

As it turns out, both of those reviews are fake.

Two weeks ago, the Federal Trade Commission fined the company $12.8 million, saying the company paid for the glowing online testimonials, the first time the FTC has taken action against paid fake reviews. Last week, Cure Encapsulations reached a settlement, admitting to deceptive advertising and agreeing to pay $50,000.

“It's a real problem if a company is buying fake reviews,” said Michael Ostheimer of Federal Trade Commission. “Consumers trust reviews a lot, they're very important for consumer purchase decisions and also it’s unfair to competition.”

The FTC's complaint, filed in Brooklyn federal court, accused Naftula Jacobowitz, also known as Nate Jacobs, of paying $1,000 to a company called amazonverifiedreviews.com to push reviews of his weight loss supplement to the top of Amazon’s charts.

Jacobs wrote to the company, "I need 30 reviews 3 per day. The goal of my competition is to bring me down to a 4.2 overall rating, and I need to be at 4.3 overall in order to have the sales."

We went looking for the company's owner, but his wife slammed the door on NY1.

“Actually, we are requiring the company to send out a letter to past purchasers, saying that the main ingredient in the product, that there is little to no evidence effective for weight loss,” Ostheimer said.

That letter reads, "We deceptively claimed that our product causes significant weight loss. We don’t have scientific proof for any of those claims."

In a statement, Amazon said, “We welcome the FTC’s work in this area. Amazon invests significant resources to protect the integrity of reviews in our store because we know customers value the insights and experiences shared by fellow shoppers."