You might not understand industry.
1) Many of these mfg’s do not want their products in the hands of amateurs. You would be wrong to think they want everyone to have their goods.
2) You can contact the re-packer of your choice….and they will list hundreds of ingredients that mfg’s will NOT sell them (even if they met MOQ)…because they know their end market. On products that are on the edge…they will REQUIRE the re-packer to alter the name (that should shed some light on their attitude).
3) I have several times contacted suppliers, and was willing to buy their MOQ, with the intention of selling off the bulk of it….ABSOLUTELY NO (most times).
4) If you look at INCI’s of some super big or premium brands…you will find things like emulsifiers…that they have exclusively. No one at any level can buy it. Meaning….they will sell an exclusive license to that producer if they can buy enough of it.
The industry does not intend on being all inclusive. They have heavy pressure from the big companies that produce end product, to eliminate pop-up sellers from finding an easy way to compete with products they spend hundreds of thousands of dollars creating and testing.
You can not imagine the iterations I have gone through, chasing those ingredients…with lesser ingredients.
As a person from industry (granted a different one), I agree wholeheartedly with their approach. When I was in industry, and had a superior product, I only wanted it in the hands of those that would make it shine. In lesser hands, my superior product could be made to look bad.