Darkened armpits?!

[FeeeelixTheChat]

OK weird one but for the last month I've been using a "natural" deodorant (instead of the Mitchum roller type I've used all my life) - just got out of the shower and I've noticed that my armpits are really dark under both! Could this be the deodorant?

I do shave but I've shaved for the last 15 years and never had this issue before. I have read it could also be caused by a hormonal issue or obesity but I am not overweight and nor do I have any other symptoms of a hormonal problem.

[YesItsMeIDontCare]

Nivea deodorant had the same effect on me so it's highly likely to be the deodorant.

[FeeeelixTheChat]

Yes but that is the standard type of deodorant right? I've never had a reaction to that stuff. I feel like it must be the bicarb of soda in the natural one causing it!

[YesItsMeIDontCare]

I guess it's "standard", but it's the only deodorant, standard or otherwise, to ever have had that effect 🤷🏼‍♀️.

[FeeeelixTheChat]

So weird. I dont see how it can be hormonal as I have no other symptoms and I'm sure this is a new thing.

[butterry]

If it's acanthosis nigricans then it's called by insulin resistance, this can be because of hormone problems like PCOS or it could also be an indicator of diabetes. I would have a blood test with your GP to rule out any underlying medical conditions.

[FeeeelixTheChat]

I dont think it is dark enough to be that, from a look at Google images. And I can't imagine that would be my only symptom either.