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bookofjoe 2 days ago

https://en.wikipedia.org/wiki/2-Nonenal

>2-Nonenal Newly Found in Human Body Odor Tends to Increase with Aging [2001]

From the paper's abstract: "2-Nonenal, an unsaturated aldehyde with an unpleasant greasy and grassy odor, was detected only in older subjects (40 y or older).

https://www.jidonline.org/article/S0022-202X(15)41198-4/full...

The fact that it's been 25 years since the causative chemical with a "unpleasant greasy and grassy odor" was discovered and yet there's still no counteracting substance available is very surprising.

kurthr 2 days ago | parent [-]

The Japanese have been obsessed with it since the study came out and have a variety of treatments (tannins in persimmons and greentea) though none have passed large scale clinical trials :)

I was fed a YT video about it recently so it must be part of the "moment". Also a topic on menopause blogs from searching.

https://asayujapan.com/blogs/asayu-blog/persimmon-soap-answe...

https://miraiclinical.com/pages/why-this-ucla-trained-anti-a...

bookofjoe 2 days ago | parent [-]

2001 paper's authors and affiliations:

Shinichiro Haze Send email to shinichiro.haze@to.shiseido.co.jp ∙ Yoko Gozu ∙ Shoji Nakamura ∙ … ∙ Kiyohito Sawano† ∙ Hideaki Ohta† ∙ Kazuo Yamazaki† Affiliations & Notes 1 Shiseido Co. Ltd., Product Development Center, Yokohama, Japan * Shiseido Co. Ltd., Basic Research Center, Yokohama, Japan † Takasago International Corporation, Central Research Laboratory, Hiratsuka, Japan

You'd think Shiseido would've put this on the front burner what with Japan's aging population but no sign of a product — lotion/spray etc. — after 25 years!

EyeEmOe 2 days ago | parent [-]

[flagged]

dang 2 days ago | parent [-]

Could you please stop creating accounts for every few comments you post? We ban accounts that do that. This is in the site guidelines: https://news.ycombinator.com/newsguidelines.html.

You needn't use your real name, of course, but for HN to be a community, users need some identity for other users to relate to. Otherwise we may as well have no usernames and no community, and that would be a different kind of forum. https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...

EyeEmOe 2 days ago | parent | next [-]

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EyeEmOe 2 days ago | parent | prev [-]

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