There is moisture in my right front headlight (Xenon bulb). How can I stop it? on 2005 Lexus RX330

The headlamp gets moisture anytime it snows or rains.

Asked by for the 2005 Lexus RX330
Find and seal leak or replace headlight assembly!
1 more answer , 2 more comments
Replacing the headlight assembly is usually the best way to repair a moisture issue.
I checked with the Lexus dealer and was told it is an $1800 repair! Can this be right?
Yes, if it were me i would find and repair the leak with clear rtv sealant, IF it were me!