What's the difference between gel, spray, and ceramic tire shine?

Gels are typically applied by hand with an applicator pad and tend to deliver a deeper, longer-lasting finish with more control over sling. Sprays are faster to apply but can sling onto paint if over-applied. Ceramic or graphene-style coatings aim to last longest and resist water, though they usually require a clean, dry tire and careful application. Your choice depends on how much time you want to spend versus how long you want the look to hold.