There's a chemical I can buy at a number of stores that kills 99% of bacteria, dissolves stains out of existence, and yet is safe to eat and rated to do so. I speak of C2H6O, better known as Ethanol, and readily purchasable as "Vodka," a mixture of 40% ethanol and 60% water.
Vodka works well as a cleanser, spraying on clear, removing the stain without corroding the underlying surface, and leaving a reasonably pleasant grain-like scent behind. Since I have yet to hear of anyone having an ethanol allergy, I recommend it as a hypoallergenic cleaner.
Or, if you'd rather drink it, then you'll be pleased by one university student's experiment performed years ago. He taste-tested expensive vodka and cheap vodka that had been filtered through a commercially available water-filter, and reported that there was little perceivable difference. Though the filter is itself expensive, later chemists reported having the same effect with activated charcoal filters, which are far, far, far cheaper.
Were I selling it commercially as a cleanser, though, I would have to denature the alcohol to make sure it didn't feed some hobo's drinking habit, as people who are hard up have been known to drink aftershave, or worse, Sterno, to get their buzz on. Probably a quick blending with methanol and isopropyl alcohol would do the trick.