I mix combination of Oronine and Shea Butter. Works awesome and price is very good. You can get Oronine at ANY Japanese drugstore, supermarket or Donki. Shea butter is easy to get, too - just look on Amazon. Or you can buy overpriced stuff at Tokyu Hands - just make sure it's raw shea butter and not shea butter with a bunch of other junk in it. You can beef this basic mixture up with a variety of 'essential oils' so it's very versatile depending the intended use:
1) Add some tea-tree oil. Higher anticeptic properties and healing conditioner.
2) Add some salicylic acid. Increase the effectiveness against keratosis and a mild astringent.
3) Add comfrey. Soothing relief.
etc etc ...
If this fails - then I suggest using good ol fashioned bacon grease. It has the staying power of an I95 'power breakfast' . The only downside are the dogs and Honey Badgers chasing you - but, hey, your performance might improve as a result.
On longer rides I tend to put a layer of vaseline on the area of chamois with the most contact then chamois cream on to myself. I also take a small, resealable container with enough cream for 2 additional doses if necessary.