Chemistry is for people who are looking for lasting relationships. It provides a scientifically inspired personality tests that is meant to help you to find your ideal mate. Basic membership is free but expect to pay for extras.
They won't teach you how to use a Bunsen burner or grow your own salt crystals, but Chemistry.com could open up your personal life to an "explosion" of possible romantic relationships.
The Chemistry Test
Upon joining Chemistry.com, each member is given a unique, scientific personality test created by love expert Dr. Helen Fisher. This fun test is designed to make matchmaking easier for the Chemistry's computer-based match system. Upon completion of the personality test, you'll automatically be matched with other members whose answers are compatible with yours. At least that's the idea!
The Matching Process
Chemistry.com utilizes science to optimize the matchmaking from beginning to end. After you've completed your chemistry profile, you'll be notified when people are found who's personality-type is compatible with yours. You'll get up to five of these every day.
Once you've chosen a potential romantic partner among these compatible individuals, Chemistry will lead you through the process of corresponding and, eventually, meeting your chosen match. This guidance can take some of the fear out of dating a stranger you've never seen before. Indeed, after some intimate messaging it may be you and your chosen match are strangers no longer.
Chemistry.com is a well respected site that's been around for a long time - it's owned by Match.com. It has a high percentage of female members, and is better suited to those searching for a long-term compatible other. You can take the Chemistry Test for free and receive matches, but expect to pay if you want to take things further.