Originally Posted by Gamite
Carnuba waxes are for shine, they're natural waxes. The downside is that they evaporate very quickly.
Synthetic waxes or sealants, like Meguiars NXT are for protection. They last much longer than Carnuba.
If you want shine, get Carnuba, if you want protection, Synthetic.
What I usually do now is just use Carnuba, but I'm curious if you've tried layering Carnuba on top of the Synthetic?