The best Hot sauce around
http://us.st12.yimg.com/us.st.yimg.com/I/hotsauceworld_2017_67444208
Bless THEE, OH JEBUS...But I'll help you out here.
That's not a specialty sauce, It's more than likely some other countries run-off's (Texas Pete, Franks, etc.)
What they do is allow 3rd party bottlers access to cheap run-off so that they can "bottle" what appears to be a specialty sauce under whatever label they chose. If you wanted to, for example,
you could get a clean tractor-trailer liquid load of a big name brand's run-off and truck to a state (where you live) approved third party bottler. They would re-heat it to about 200F -209F and then put it in bottles that you bought (hopefully from a wholesaler) after those bottles had been pre-sterilized. After the bottles had been filled, they are then capped with semi-clear flow restrictors and then capped and a "safe-unopened bottle" color or clear plastic is heat shrinked on to the top. You can then design your own personalized "Jebus' Richthofen II's Satanically Hot Hot Sauce" label (get a good graphic artist to do it for you) and then have the finished product boxed in boxes of 10, 12, ,or 24.
Then all you need is shelf space--or a contract with a grocery store(s) chain that charges you for shelf space based on shelf level, shelf size, and location to other "prime selling" brands of the product you sell.
I almost forgot. You also have to get a state permit and submit a calories and contents survey of the finished product for state and federal approval, (calories per serving, salt, potassium, protein, etc.).
Some 3rd party bottlers will add habenero powder, cayenne powder, or other spices or flavors to the sauce--all of which must be disclosed in the contents survey. You will also need special insurance for your product that protects you from lawsuits, scurrilous or valid regarding the consumers of your product. Understand the general public has some pretty stupid people out there and if your products needs valid (or even humorous) warnings to the consumer, it sure as heck better be on the label.
Really, if someone wants to do that (the vast majority of 3rd party producers who do it do it for the outrageousness of the label and know that most consumers will not eat the product--they simply add the bottle to their proud wall collection.) and has a decent financial backing to get it started ($5,000-$7,500--depending on how stringent your local laws are, for your first 10,000 bottles (not including the cost of the sauce, transportation & delivery costs) you can easily have your own brand on the shelves--provided you already know a producer in the area that will allow you adjacent shelf space at a discount--but who gets a cut of your profits for the priveledge.
Then there's the matter of shipping, logistics, unions, stockers, and sales guys in the field willing to take you on as a local distributor.
Believe me--I've been there.
Most people think that if they pay an extra buck for a bottle of hot sauce with an intimitading name on it that it's some sort of gourmet sauce. Most of the time it's somebody's run-off habenero sauce with red food coloring.
ROX