What is the best teeth whitening kit?

what brand/kit is best for at home whitening (and least expensive)? i was thinking of just the whitening strips or trays that take a week or two.
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Without buying a kit or something really expensive that can be annoying, but some strawberrys or pick them depends on where you live, and every day take out a few strawberrys and rub them all over your teeth, and rub them over once or twice , use 1 or 2 strawberrys maybe even three to get all of your teeth, ( and no chewing does not work) and you will see instant results. It worked for mee :) Hopee this helps , Lynnia ! :) <3
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