This spray also does a number on all those other miscellaneous stains in your life, like wine, coffee, soy sauce, makeup, and period blood! I recently bought this to test it for myself, and can attest to how well it works to get period blood out even after you've tried something else. I stained a pair of beloved bright-blue bike shorts in my sleep and tried to get it out with soap and water, but the stain was still there when it came out of the wash. I treated it with this, stuck it back in the wash, and BOOM, it's like it never happened (I panicked before I could get a before and after, please forgive me, laundry gods).
Promising review: "This is the BEST stain remover I have ever used.. EVER! This stuff keeps my 2-year-old son's clothes looking new! Anyone who has or has seen a 2-year-old will know how dirty their clothes can get. This has gotten out chocolate, grass, red juice, pasta sauce...you name it! I can literally watch the stains disappear (I know that sounds exaggerated but it’s 100% true. Not only is it the BEST stain remover I’ve ever used, but it’s natural, so I feel safe using it around my child, and you can’t beat the price. You have to try this stuff; once you do you’ll never go back." —whitney palmer
Get it from Amazon for $11.99.