Homemade pesticide?

Good afternoon!
I’ve been reading that liquid dishwashing soap/detergent (Dawn liquid) can be used as pesticide.
Is it true and safe?
If so, how to you personally make the mixture?
Water? Alcohol? Oil? Dawn?
Thank you again.

DIY insecticidal soaps are commonly used, but I have yet to give it a try. There are lots of recipes online - here’s the first one that came up when I took a look:

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