Mike Einziger, the lead guitarist of the ’90s rock band Incubus, and his wife, science teacher-turned-rock violinist Ann Marie Simpson-Einziger, did not intend to start a beauty brand. 
Ann Marie Simpson-Einziger organically came upon her hero ingredient, a yeast-derived compound called Malassezia, after being diagnosed with a harmless skin condition. The diagnosis led her to question whether something that "most people would view as a negative" could be harnessed to address common skin concerns — namely, hyperpigmentation and the common desire people have to lighten darkened patches of skin. 
That was over six years ago — that's how long it's taken the couple to build a team, complete extensive testing, develop a formula and bring it to testing. Plus, they fundraised to the tune of $6.2 million dollars, with key investors including The Female Founders Fund, Nyx founder Toni Ko and Paul Mitchell co-founder John Paul DeJoria. 
On May 9, the brand finally launched, with one product — Molecular Hero Serum — offered for sale on its e-commerce site.
Below are excerpts from the latest Pop Edition of the Glossy Beauty Podcast, featuring Einziger and Simpson-Einziger discussing the development of Mother Science.