Medical reason for turning the clothes color yellow are as follow.
Well there`s your problem you are using a water softener softeners mess your clothes up because of the salt they can turn your clothes yellow and you are perhaps using too much detergent another No No!
and also deodorants can turn fabrics yellow and of course perspiration will turn fabrics yellow those sunblocks you are using could have a oil in them that is mixing with the oils in your skin this also adds to yellowing,
I can suggest some hints to help you with this embarrassing problem Get the yellow out of clothing To restore yellowed clothing,
let the garments soak overnight in a solution of 12 parts warm water to 1 part vinegar.
Wash them the following morning.
Unset old stains Older,
set-in stains will often come out in the wash after being pretreated with a solution of 3 tablespoons white vinegar and 2 tablespoons liquid detergent in 1 quart (1 liter)
Rub the solution into the stain,
then blot it dry before washing.
Remove rings from collars and cuffs Are you tired of seeing those old sweat rings around your shirt collars?
What about the annoying discoloration along the edges of your cuffs?
Give them the boot by scrubbing the material with a paste made from 2 parts white vinegar to 3 parts baking soda.
Let the paste set for half an hour before washing.
This approach also works to remove light mildew stains from clothing.
Brighten your loads Why waste money on that costly all-color bleach when you can get the same results using vinegar?
Just add 1/2 cup white vinegar to your machine`s wash cycle to brighten up the colors in each load.
In the Laundry and for Removing Stains Soften fabrics,
and more There are so many benefits to be reaped by adding 1 cup white vinegar to your washer`s rinse cycle that it`s surprising that you don`t find it prominently mentioned inside the owner`s manual of every washing machine sold.
Here are the main ones:
A single cup of vinegar will kill off any bacteria that may be present in your wash load,
especially if it includes cloth diapers and the like.
A cup of vinegar will keep your clothes coming out of the wash soft and smelling fresh -- so you can kiss your fabric-softening liquids and sheets good-bye (unless,
you happen to like your clothes smelling of heavy perfumes).
A cup of vinegar will brighten small loads of white clothes.
Added to the last rinse,
a cup of vinegar will keep your clothes lint- and static-free.
Adding a cupful of vinegar to the last rinse will set the color of your newly dyed fabrics.
Pretreat perspiration stains Want to see those sweat marks disappear from shirts and other garments?
Just pour a bit of vinegar directly onto the stain,
and rub it into the fabric before placing the item in the wash.
You can also remove deodorant stains from your washable shirts and blouses by gently rubbing the spot with undiluted vinegar before laundering.
I hope this answer will helps you a lot.