The collection, which dropped on Tuesday (19Oct21), features 40 pieces produced in association with fashion experts at Boohoo, including crop tops and curve-hugging dresses, priced from $12 (£9) to $120 (£87).
In a post on boohoo.com, which features Megan modelling many of the outfits herself, the "Transformers" star's brand is billed as "a representation of female sensuality."
On Tuesday, she shared a photo to Instagram of herself wearing a black bandeau bra top and a zebra-striped coat.
Megan recruited her stylist Maeve Reilly for the job, telling People ahead of the launch that some of the pieces "are things that we already had picked out for me to wear essentially, but with different designers."
Reilly's recent looks for the actress include her "naked" dress at last month's (Sep21) MTV Video Music Awards, her Met Gala gown, and her Barbie-inspired iHeartRadio Music Awards outfit.
Megan explains her Ohio varsity jacket, is a nod to her rock-rapper beau, Kelly.
"My favorite item is going to be the Ohio jacket. Inspired by the hometown of my beloved...," she told People.
On Instagram, the brunette stunner added, "Because there's tons of other reasons to love Ohio even if your boyfriend is not the People's Mayor of Cleveland."