How it works
A smell settles into the house as your parents get older. Washing more doesn't shift it, and nothing on the supermarket shelf does either.
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Older skin makes a compound called nonenal. That's the smell. Production climbs after about forty and doesn't stop. It doesn't rinse off, either. It sticks to skin, then moves onto whatever that skin touches: the armchair, the pillowcase, the passenger seat.
Air fresheners and scented detergents put a smell on top. The nonenal underneath doesn't go anywhere, and the two together usually smell worse than what you were covering. Once the fragrance wears off you're back where you started. No-Nenol goes after the compound instead.
The smell isn't in one place. It's on skin between baths, in the linens and the upholstery, and in the air of a room that's been shut all day. Clear one and it comes back from the rest. That's why there are two products and not one.
