Many reviewers report hydration and curl hold lasting from a single day up to several days; some note styles or moisture can persist a week depending on product, application, and hair type.
Common container sizes include 6 oz, 8 fl oz, 12 oz, and 20 oz—brands often offer a range of small tubs up to larger jars for home use.
Besides hydration, they often enhance curl definition, smooth frizz, increase shine, add texture or volume, and some formulations offer humidity resistance for longer-lasting shape.