Scam artists can sell it without a prescription as long as they're calling it an animal product. It's sold off the counter at any feed store. This is always the scam with these claims it's ''it cures cancer THEY just don't want you to know about it!'' Then they sell you a huge amount of it at a huge markup. This is everything from Monavie (an aqci berry juice), vitamin Mega doses, some completely insignificant ''supplements'' (I knew a guy selling ox bile capsules with almost no oil or extracts mixed in), then you have all manner of crystals, jade eggs, food processing leftovers like apricot pits, inert nonsense. And I'm not even really mad about it because it mostly ripps off rich idiots like Mel and Joe. These idiots take the same meds from their doctor as everyone else, then ALSO take the snake oil and are convinced the snake oil worked. Joe took a vit C mega dose when he was also taking meds from his doctor for Covid, and he's SURE the Vit C did something. It's like how if you have really worn out tires on a car that when you get new tires the mileage gets noticeably better, but then you think ''tire store change tire = 20% lower mph'' so you take your car back the next day and ask them to change the tires 4 more times because you think it will make your car have -100% gas consuption. All these meds CAN improve your immune system response by removing parasites if you have them, eliminate vit deficiencys if you have them, or remove other micro nutrient deficiencies, all work IF you have the issue to begin with, and studies show the improvement, but taking 1000x the dose of Vit C is just making your pee insanely vit rich, once the deficiency is resolved your body dumps the excess.