this stuff *works*
https://hexperformance.com/why-hex/
If you have hard water or you have used plant based detergent for a while and or you use plant oil based deodorant (as opposed to glycerin) **you need enzymes**
Seventh Generation Ultra Power Plus (has some emzymes) with additional borax to combat hard water build up in the synthetic fibers does ok. But this HEX stuff works better than anything I have ever tried and I have been combating stink build up in our laundry for like 7 years.