Siberian cats have been the subject of research for their hypoallergenic properites for many years now. A protein, Fel-d1 is released in ALL cats via their saliva, tears, and feces.  Studies show that  90% of people who have moderate to severe allergic reactions to cats are allergic to this protien!!  Siberian cats have the LEAST amount of this protien out of all other cat breeds.  Therefore, 90% of people with cat allergies can live with a Siberian cat with little to no allergic reactions! That is the case with me! It is absolutely MAGICAL!!!  10% can have a reaction , but it's usually to a much less extent.                                                                                       

    The very best way to test a person’s reaction to Siberian cats is to visit a Siberian Cattery. Spend several hours there playing with the cats and kittens. Watch carefully for allergic signs.  If you tend to have severe allergic reactions to cats, consult with your physician before visiting a cattery.
   Some catteries claim they can test for the levels of Fel-d1 found in their kittens.  The problem with this is that kittens carry a higher level of Fel-d1 until they are about 6 months old – at which time the Fel-d1 level has disipated out and leveled.    So testing kittens before the age of 6 months will not give you an accurate level.