What's a Dosha?
Within the Ayurvedic practice your dosha is mind and body type. Pratima uses your dosha to determine which of their products would be best for you, based on your dosha. Overall, there are three different dosha's that you can fall within: Vatta, Pitta, and Kapha.
Now I haven't tried any of the products, so I can't say whether or not they are any good but it's interesting. Pratima has a full line of skin, body, and hair care products. Visit their site to check it out.