What is the best tire/inner tube sealant for a bike?? besides the slime, i mean something real good?

lately i had a lot punctures in my tire and as a consequence in the inner tube, so i was use the slime but it just go out in each puncture, so is there another brand can somebody recommend me??
cause im tired to patch and patch again, im a regular bike rider so i use the bicycle all the year in all seasons
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