Response from genesis950.com
Barb, I am very sorry you did not achieve the result you expected, please call our office 847 244-3600
Without knowing the cause of the stain it is impossible to comment, however i can assure you that the product is safe for use around the home.
Genesis 950 does not contain any regulated toxins, has Zero HAP's, & ZERO SARA title 313 chemicals. I would challenge you to find ANY other cleaner on the market that can make these claims. As with any chemical, common sense dictates that you use gloves & do not ingest.