Yellow Out

I heard if you rub white chalk on armpits and colors they come clean. I have tried that on calers and it worked, I haven't tries it on armpit stains yet, but who knows it very well may work. J.

I've seen it at my local grocery store in the laundry aisle. Have you searched for it online? Maybe Amazon sells it.

It's also called blueing and it can be found at lots of normal retail stores.

I've not heard of "yellow up." In the past I had difficulty with armpit stains on clothing and found that first rinsing that area in cold water helped the stains to not form in the first place. I think that the deodorant penetrates the fibers and won't let the detergent in until it's rinsed out.

However, I've not been doing that until just this week when one of my t-shirts still smelled after it came out of the wash. I rewashed it after rinsing out the underarms in cold water and it came out smelling fresh.

I've also been using Oxy-Clean in every wash load. I do think that helps clothes to come out brighter. I ran out and hadn't used it with the bad smelling t-shirt. I suggest that you try soaking your garments in a strong solution of Oxy-Clean in water. I've removed many a stain that way. But first rinse out the underarm area with cold water being sure that the water penetrates the fibers.

Perhaps the kind of deodorant that one uses can also cause the underarm staining. I was using just a deodorant but switched to an antiperspirant, Mitchum, a few years ago. I don't know when the stains stopped happening but these are the changes I've made over the years.

By the way, Blueing can be found in the same section as detergent in the grocery store. It's a rinse additive that was commonly used in the "good old days" to make whites brighter. I don't know if it works on synthetics. I never experienced it removing stains of any sort.