eyelash growth

I see that both are called DUO but the package looks different. The drugstore sells it for $5 compared to Mac for $8. also I see theres a blue package and a pink one. any difference in how well they hold?

there different companys so of course they are of different quailty.

Is the false eyelash glue DUO sold by Mac the same DUO sold at drugstores? ?