Products in an MLM have to be cheaply made.
Using Mary Kay as an example here, the basic premise is you buy the products from Mary Kay and when you sell them you sell them for twice as much as bought them for.
Mary Kay has already made a profit off those products by selling them to the bots in the first place, so you can imagine how cheap they are to make, and sub-par.
That is the same for all MLM's, very cheap products, usually rubbish, marked up to extortionate prices so that everyone can theoretically make a profit.
For you to come up with an MLM and for everyone to make a profit, the products have to be marked up. You need to make a profit, obviously you won't work for free, and everyone else needs to make a profit. So the products have to be bought in by you very very cheaply.
I'm not saying that is true with what you are selling now because I haven't actually got a clue.
It is true with all MLM's though. By selling the product to the bots is how the MLM makes it money. It gets bots to join by telling them that once they have bought the product from them they can sell it for so much more or get a percentage of that sale back in the form of a bonus.
Any MLM who tried to operate with either a tiny markup or none, wouldn't work at all.