HI, I have used Vitamin E oil from a capsule.
Also years ago use Vaseline, KY.
Now use Vitamin E oil or olive oil.
If you use the oils make sure you use a generous amount on the nozzle. I insert some with finger in rectum to help.
The oil runs off the nozzle fast and will dry up some. So use lots of olive oil and apply right before giving the enemas.
Some on here say not to use Vaseline. I have used it, even recently when did have any oil in the house. No problem using it.
My mom and aunt gave many enemas with it.