DA is/has been associated with Alopecia in a friend of mine. He thought he just had early onset Alopecia, quit using Shellac for a few months, and his hair started growing back in. He had trialed the use of Everclear instead of DA, and liked it, however it wasn't real cost efficient. He is a cheapskate, so ended up choosing to be bald, instead of broke.
At one time he had chronicled his journey through baldness on his old website, again being cheap he is on FB now, and "stopped paying those outrageous fees" I can't find it, but he is a details guy, and went at it like a science project, was interesting reading, and he is/was certainly bald.
Rob Millard, Federal Period Furniture.Larry, you need to give Shellac a try, super easy to use. I love Garnet Shellac, especially on light woods like Pine, Ash, Poplar. Multiple coats fast drying, it probably should be in everyone's finishing arsenal. Anything can go over it, and it is/should be your first choice for a stain blocker. Almost magical stuff. You can get some Platinum, ultra clear Shellac that will wet the wood, but hardly yellow it like most finishes tend to do. A huge range of working "colors" and all of them have great properties.