She is planning on selling her eggs, have been trying to convince me for weeks now, I just want to be sure its safe

You been wan fry the Eggs chop or what?

So far as she is into poultry Business....

What's the crime in that?

It's very safe, OP.

Provided she's in good health, her body has millions of eggs that she'd probably never need and they'd be depleted at a certain age.

Well, there's nothing wrong in doing that as long as she's mentally and psychologically ready for it. Also, I hope she's healthy.

A female has 400 eggs in her ovaries and each month, an egg is lost due to menstruation. So, she's got no need to panic because she's still gonna have lots of eggs at her disposal.

She must make sure the procedure is done at a reputable company/facility/clinic. Also, she must inform her lawyer if necessary so as to be able to have a legal guide.

I wish you both well.

Yes, it's safe. A lot of people are doing it these days. As long as she's healthy and the hospital is a specialized one.