Polymer Clay Jewelry:
Polymer clay is a durable, slightly flexible, and lightweight material.  Although durable, it can get scratched by hitting hard surfaces/materials and rough handling.
Makeup and other debris can be removed from clay components by gently going over blemished areas with a cotton swab or soft cloth dipped in rubbing alcohol or water.

Brass:
Raw brass components may tarnish and darken over time if exposed to water and oils from the skin but can be easily cleaned with a soft jewelry cloth and/or tarnish remover.

To extend the life of your jewelry, it is highly recommended that your jewelry be removed and stored safely prior to sleeping, bathing, swimming, and exercising.