The stabilization serums are free, well that is, unless you're a slave girl, and then the price is the collar.
You can now read through all references to the stabilization serums here.
Some five hundred years ago, they developed the first stabilization serums."
"How could I ever pay for such a thing!" I gasped.
"There is no question of payment," he said. "They are given to you as an animal, a slave."
"Master," I whispered, awed.
"Do not fret," he said. "In the case of a woman from Earth, like yourself, they are not free."
"Master?" I asked.
He took my collar in both hands, and moved it in such a way that I could feel how sturdily, and obdurately, it was locked on my neck.
"For a woman such as you," he said, "their price is the collar."
"Yes, Master," I said. The serums, in that sense, did indeed have their price.
We paid for them with the collar.
Dancer of Gor    Book 22    Page 473
I had been administered the stabilization serums which on Gor, of course, are administered even to slaves. It is desired by the masters that we retain our energy and vitality, our needs and passion, our attractiveness and desirability, our helplessness and responsiveness, our youth and beauty, doubtless not for our sake, as we are only slaves, but for their sake, that we may be more pleasing to them. On my world I supposed this might count as a gift beyond price, concerning which murders might be done, and wars fought. Here, as we were not free, it was little more in our case than a procedure or device to improve slave stock. I wondered what would be the case if a woman, say one of my world, had a choice in such matters. Certainly I knew what the political and ideological prescriptions would be on my old world. She would be expected to prefer decrepitude, withering, aging, and death to a collar on her neck, and a master in whose arms she would be no more than a begging, enraptured chattel.
Smugglers of Gor    Book 32    Page 337
I had heard of the stabilization serums, but did not fully understand them. Supposedly they prevented ageing. I found this hard to believe, but I had never seen a Gorean who seemed to me old. If what I had heard was true, age, understood as a disease, had been conquered on Gor. These stabilization serums were not limited to free persons, but were administered to slaves, as well, that they might retain their value. I supposed there must be Earth women who would prefer to be free and gradually grow weak, decrepit, haggard, miserable, and die, but I supposed that there might be some who would not mind retaining their youth and beauty indefinitely, even at the cost of a collar on their neck.
Quarry of Gor    Book 35    Page 26
