What can you say? Does what it says on the tin (or rather, lube tube). Widely used for decades now, and recommended by health professionals.
Being housebound, I initially ordered some from the supermarket which delivers the weekly shopping. On arrival, the delivery guy said "There's just one item you ordered which wasn't in stock today." Well, I knew which one it would be. of course. He consulted his list and announced: " KY JELLY!". Just as well I'm not easily embarrassed.
So it had to be ordered from Amazon. I chose express delivery, and the package had nothing on it to identify the contents. Prompt hassle-free delivery by Amazon Logistics, who seem a bit more reliable these days - they used to be hopeless..