The theory of desired dissimilar immune system matching can be quantified according to markers on a person’s major histocompatibility complex (MHC), a large gene region that controls the immune system response, and postulates that couples attracted to this type of scent owing to the result that a resultant child would create a more robust immune system, more defensive against a greater variety of pathogens.
Read Detailed Review » Rating: (4.5 out of 5) Rank: #2 Company: Mate1 # of Members: Over 15 Million Type of Members: Serious & Casual Relationship Seekers Membership Options: Free & Paid Membership Benefits Cost: Free for Females Description: Mate1 is ranked by Comscore Mediamatrix® and Neilsen Netratings® among the top 5 mainstream dating sites on the planet.
In dating sites, science-based online dating sites are those pair-matching websites that claim to use “science”, such as chemistry, genetics, psychology, or the scientific method, etc., to match up potential couples.
 , motto: “lets people experience real chemistry”, a subsidiary of (Alexa-rank: 310), launched in 2006 and developed, in large part, on the theories of American anthropologist Helen Fisher, which claims to match people according to compatibility and chemistry.
), started in 2000, which claims to use biorhythm compatibility to match potential loves.
This site, however, seems to only ask for birthdates of pairs.