Is Invisalign useful for overcrowded and crooked teeth?

I’m too embarrassed to post pictures but I have severely over crowded teeth and I never thought it’d be possible to go for Invisalign in my case not to throw a pity party but I didn’t have a mom growing up only a dad who was too busy with women I used to beg him to take me to a dentist but he’s the type who doesn’t believe in health care or dental stuff or mental health issues overall an asshole and neglected my dental health severely growing up now I’m paying thousands to get it done so late in life but this ortho is a Harvard graduate he’s been in magazines and #1 Invisalign specialist in the city and he’s just awesome overall as a person and he showed me before and after 2 years of Invisalign treatment and I’m shook at what it’ll look like in 2 years but I’m just curious I trust him but is this really possible

Is Invisalign useful for overcrowded and crooked teeth?
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