Dry paw pads
I noticed that both my cats' paw pads have gotten quite dry lately (I can see little white lines all over the pads, looks like when a person has dry skin). I recently switched to clay litter, and winter has brought much drier air, so I'm guessing one or both of those may be related to the dry paw pads. Their paws did not look like this a month ago when it was a little less dry and they used corn-based litter.
Do cats need any kind of moisturizer for dry pads or would a humidifier help? Or is this completely normal?