Well, when dealing with chemicals size always matters to determine toxicity, a baby human is still a lot bigger than a gecko, and it would take more toxin to show symptoms in the bigger creature than it would take to seriously harm the smaller.
We prefer good old bleach solution, because I know if I rinse the object out several times it has no cleaning residue. Same with the products made for lizards. I would worry about a household product leaving behind something that couldn't just be rinsed away. No shortcuts here.
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0.1 Albino Leo Gecko
0.0.1 Crested Gecko
1.0 Dear Boyfriend
Departed: Harvey and Spock