There should be many sturdy metal palette design options, that all fit standardized eyeshadow pans, they are designed to be easily swappable and refillable.
Colors should still have cute names to help you remember what they are
Lipsticks should come in refillable tubes
Liquid foundation should be custom blended and come in sanitary pump bottles, creams in refillable compacts, loose powder in refillable jars.
There should be a wide variety of opacity, finishes and so on available
Pencils are sustainable and can remain disposable
Certain products can be grouped together in little “lines” because they have the same aesthetic “pinup”or “goth” or what have you.
No all natural fear mongering woo, but there will be hypoallergenic formulas.
Modular brushes for a variety of mascara formulas
You can choose what bottle your perfume goes into. Perfume bottles should be opaque to best preserve the scent.
Mass production scents would have creative concepts generated by a committee within the collective (basically volunteers) and then those would be voted on on a big website (the most popular however many it’s sensible to produce getting produced, production runs based on number of votes for new scents, last years demand determining old ones along with consumer satisfaction surveys)
There should be a yearly survey asking people what we can improve in terms of product and selection. Consumers also vote on how well various scents matched their stated concept.
Perfumers pet projects may get production if they get a certain number of signatures.
What if we eliminate money but everyone has little ID cards they swipe when they get stuff so we know what stuff is popular where and with whom? What products people buy once and what they buy over and over. This kind of data will be immensely important in a post market economy