It's not clear if "Stiff Nights" is a "dietary supplement" as its maker claims, or a bad b-movie title, but in either case the FDA says men looking to "regain the thunder" should stay clear because the pill really contains sulfoaildenafil, an untested chemical similar to the active ingredient in Viagra, which can interact badly with nitrates and cause low blood pressure.
Sure, you may encounter partners who may be turned off by that, as with any physical or sexual preference. But you’ll also find partners who are turned on by it, or who don’t care either way. It’s all about finding the right sexual compatibility with the right partner — and that might include adding more oral stimulation, manual stimulation, sex toys, and so on. It's 100% entirely possible to have an amazing sex life with any size penis (or, you know, none at all).
Many manufacturers market the products as dietary supplements because the products contain natural ingredients, including vitamins and minerals. When shopping for male enhancement products, read the label carefully. You might find that the product contains the same ingredients as those found in a multivitamin. You should also look at what the product does because not all supplements promise the same thing. Some shoppers want a male enhancement supplement that increases stamina, but some men want a product that only contains natural ingredients.