We re-engineer life’s essential products — starting with your tampon.

  • 3749 Buchanan St #316 San Francisco CA 94123


Developed by athletes and engineers

It’s never a yell from the bleachers or a missed play that messes up our game.
We prepare for moments like that.
It’s the inevitable leak in a white uniform that caused us anxiety so painful, that we decided to do something about it.

We are female athletes and engineers,

That knew something better was possible.

As product designers and engineers from Stanford University, we dedicated our skills to improving a product so deeply personal to ourselves and our experiences. Using fluid mechanics, we designed a product that finally works the way it should.
We believe that you should love your tampon, and we're so excited for you to love Sequel.

Greta + Amanda, founders of Sequel