Their passion is fashion - so they decided to transform a hobby into their career.

Sisters Andréa, Amber and Alexa Matillano of Clarks Summit decided two summers ago to give an experiment a try that most people would avoid.

"One day, we decided to make our own nail polish," Andréa Matillano recalled. "We didn't think we'd be able to, but then we looked into it and realized that we could combine the best parts of everything that we like about nail polish and make our own. A lot of people think we mix the polish in our home, but we don't. We decided to seek out a manufacturer because we would be dealing with chemicals and something that you would put on your body. We did a lot of research on manufacturers and the whole process and that's how we got started."

The sisters readily admit that it was their addiction to nail polish that inspired them to create Tillie Nail Polish. A bottle of the polish retails online for $8 or for $35 for a collection of six. Their product avoids the use of the four major chemicals typically found in nail polish: camphor, which causes nausea; DPB (dibutyl phthalate), which can have prenatal effects; formaldehyde, which irritates a person's eyes; and toluene, which has a strong odor that can cause headaches.

Amber Matillano, 22, explained that she and her sisters choose the colors for their line based on curent beauty and fashion trends. The line has already become popular thanks to Andréa's YouTube site (AndreaMatillano), which already boasts more than 20,000 followers.

"We've had repeat customers from winter to spring, it shows that people like the formula," Amber said. "It makes us happy that people come back to buy it a second time."

"The response to the line has been great," Andréa said. "With the winter line, we decided to start small because we didn't know if it would take off, but it sold well. Our spring line is going a lot better, though. I'm not sure if it is because the spring colors appeal to more people or if the line's popularity has spread through word-of-mouth. It might be a little bit of both. We haven't officially released the spring line yet but we did sell out of our inventory of preorders. That was exciting."

The Tillie Polish spring collection features pastel colors based on the concept of spring break and boasts colors such as "I'm a Mermaid," "Bows and Bandeaus" and "Pool Boy."

Alexa Matillano, 16, is the youngest of the sisters. A student at Abington Heights High School, she explained that although the process of creating and selling a nail polish line would seem like a daunting task, she and her sisters are glad that they took the chance.

"Everyone should go for their dreams," she said. "It was a lot of work and we are still working hard but once you get your product out there, it is really satisfying. We had to be patient, because the sales didn't start pouring in right away."

For more information on Tillie Nail Polish, visit www.tilliepolish.com. Clarks Summit sisters create their own nail polish line