Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: paul cotter on 14/01/2024 17:48:03

Title: What to make of caffeine shampoo?
Post by: paul cotter on 14/01/2024 17:48:03
I don't much look at the gogglebox but others in the house do and I cannot help being exposed to ads for caffeine shampoos. I think this is purely a manufactured "fashion" as I can see no possible benefit for applying an adenosine antagonist to keratin. What do ye think?
Title: Re: What to make of caffeine shampoo?
Post by: alancalverd on 14/01/2024 18:24:07
https://www.theindependentpharmacy.co.uk/hair-loss/guides/what-is-caffeine-shampoo-and-does-it-work-for-hair-loss (https://www.theindependentpharmacy.co.uk/hair-loss/guides/what-is-caffeine-shampoo-and-does-it-work-for-hair-loss) appears reasonably authoritative even though some of the quoted effects seem contradictory.

A distant male relative not merely avoided baldness but grew particularly luxuriant hair and beautifully soft, smooth skin in his 50's, which he correctly ascribed to  taking some pills that had been prescribed to "cheer up" his wife. All went well until he developed firm, prominent breasts.

I've cut down on caffeine (on the advice of a cardiologist) and adopted a very short razor-cut.   
Title: Re: What to make of caffeine shampoo?
Post by: paul cotter on 14/01/2024 20:19:50
Thanks for that, Alan. I did notice the contradiction re improved blood flow and vasoconstriction. I thought the article was rather wooly and not definitive but then there may not be a definitive answer. For a polar molecule like caffeine to be significantly absorbed through the skin seems unlikely and I believe much higher levels would be achieved through oral consumption, ie real coffee. Is there any studies linking high coffee consumption with reduced hair loss?
Title: Re: What to make of caffeine shampoo?
Post by: alancalverd on 15/01/2024 14:38:11
It's possible that the surfactant in shampoo aids penetration of caffeine into the follicular sebum, but I'd still prefer to drink it.