Wikipedia:Reference desk/Archives/Miscellaneous/2021 November 18

= November 18 =

deodorant and conditioner
Deodorant After using a deodorant containing zirconium, the skin may develop an allergic, axillary granuloma response.[28] Antiperspirants with propylene glycol, when applied to the axillae, can cause irritation and may promote sensitization to other ingredients in the antiperspirant.[29] Deodorant crystals containing synthetically made potassium alum were found to be a weak irritant to the skin.[21] Unscented deodorant is available for those with sensitive skin.[citation needed] Frequent use of deodorants was associated with blood concentrations of the synthetic musk galaxolide.[30] It's hard to recommend because everyone and everything is different but is this recommendable to most?

And is conditioner good or bad? Hair_conditioner Conditioners are frequently acidic, as low pH protonates the keratin's amino acids. The hydrogen ions give the hair a positive charge and create more hydrogen bonds among the keratin scales, giving the hair a more compact structure. Organic acids such as citric acid are usually used to maintain acidity.2001:8003:740C:D100:1447:9965:3B16:612E (talk) 10:29, 18 November 2021 (UTC)
 * It is hard to say what is "good" or "bad". Neither deodorant or conditioner are necessary for maintaining health, although people may choose to use them for personal grooming reasons, related to how they make them feel about themselves and their interactions with others.  Given the wide variety of skin and hair types on earth, finding grooming products that work for you is highly personalized, and often requires some trial and error.  If you want some general advice on deodorants and conditioners this has some options to explore for deodorant, and this has options for hair conditioner.  I hesitate to recommend any one source because I don't want to appear to endorse one over any other; you'll have to do your own reading and decide for yourself.  -- Jayron 32 12:45, 18 November 2021 (UTC)
 * See also Is Deodorant Harmful for Your Health?. Alansplodge (talk) 19:01, 19 November 2021 (UTC)

The USA book sales of Overcoming
I was wondering how many copies of Vicky Phelan's autobiography Overcoming sold in the USA. It was released in 2019 in Ireland. I am aware it is possible that it may have only been released in Ireland. (Fran Bosh (talk) 18:37, 18 November 2021 (UTC))


 * That sort of information is not usually made public, but you could try contacting her publisher here. Of course it might not be possible to know to which country digital versions of the book were downloaded.--Shantavira|feed me 09:38, 19 November 2021 (UTC)