Removing Deodorant Stains from Black Clothing- anybody know how?

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Well, they're anti-perspirant stains, technically, I know, but on black cotton school jumpers. It's where she's been carrying a heavy bag, and walking home.

I've seen advice saying bicarbonate of soda, hydrogen peroxide and dishwashing soap would work...but I'm fairly sure that the hydrogen peroxide would bleach the jumpers.
DD is Y11, so only has six months left, max, and I just don't want to fork out for new ones.

If anyone has managed to remove them and could share what worked for them, it would be very much appreciated

Bumping for any wise MNers?

I've heard that aspirin made into a paste with a little water is really good for this.

Can she switch to a different anti-perspirant?

I have some aspirin so can give that a whirl. It has taken ages to find a brand/smell she likes and that works...so I think she'll be highly unimpressed if I ask her to change again!
We had another one that was perfect, and then it was discontinued

I know it took a while to find a deodorant your daughter likes, but try the rock salt ones, they don't seem to have this problem. The Salt of the Earth lavender and vanilla one is really nice, and although they are a bit more pricey you can buy big refill bottles which cuts the price quite a lot www.hollandandbarrett.com/shop/product/salt-of-the-earth-lavender-vanilla-natural-deodorant-spray-60012001?skuid=012001&&msclkid=3722f9ca7b041fe897b29814e4b61386&utm_source=bing&utm_medium=cpc&utm_campaign=GS%20-%20[BEAU]%20-%20Standard%20Shopping&utm_term=4584482464992128&utm_content=Natural%20Beauty%20-%20Washing%20&%20Bathing&gclid=3722f9ca7b041fe897b29814e4b61386&gclsrc=3p.ds. Soaking clothes in distilled vinegar is meant to help too, and I'm pretty sure that won't bleach the jumpers- I use vinegar for EVERYTHING in my house! So it might be worth a go.

The absolute BEST cleaning solution I've ever found is... Bioderma Sensibio Micellar Water! Yes. Seriously.
I haven't personally tried it on deodorant marks but I reckon it would work.
So far it has removed...
Tomato out of clothes.
Other various foods from clothes/fabrics.
Sharpie pen off cream duvet cover.
Other ink stains from fabrics.
Cat sick from the carpet.
Tea stain from the carpet and cream duvet.
If it doesn't work first time I saturate the area several times and then leave it. Saturate and leave it - it does quite a lot of work on it's own - though of course rubbing helps massively and is also essential. Rub it with cotton wool to start, then rub the fabric together on itself.
It's the only thing I use for stain removal now - it smells of nothing and its totally non-toxic, skin friendly. And so far has been fabric friendly to the huge variety I've used it on. I got a 'water mark' from using it on a curtain, but just bunged it in the washing machine and it was sorted.
It's not the cheapest stuff in the world - I only buy it when it's on offer and I hunt around for the offers online. But - works the best even compared to noxious chemicals, and, cheaper than replacing said items ey!

and.. if it doesn't work, you've got yourself a really really decent makeup remover

I found soaking the areas in white vinegar overnight then washing with bio on the highest temp the clothes can allow with an oxy stain remover added. Then before every wash id spray vinegar on the areas go break down the deodorant buildup.