Best persimmon soap for nonenal / "old person smell" — what actually worked for you?

I've been comparing persimmon (kakishibu) bars for nonenal odor — neck, behind the ears, pillowcases, that greasy "closet" smell after 40.

What I'm seeing so far:

• Fragrance-free bars are easier if you're scent-sensitive or buying for a parent
• Technique matters as much as the bar (target oily spots + wash fabrics)
• Cheap Japanese drugstore bars (e.g. Pelican) are a low-risk test
• Bigger-name brands have way more reviews, but price and scent options vary a lot

Looking for honest results — what brand did you try, how long until you noticed a difference, and did the smell come back in clothes/bedding? "It didn't work" answers are welcome too.