Athena Hewett hit the jackpot in the grandmother department—hers lived in the Greek Cyclades and introduced Athena to using herbs for aromatherapy and the healing powers of olive oil, which was made from their family’s grove. Those memories stuck with Athena as she became an in-demand aesthetician in California and found herself frustrated by how poorly her clients’ congested skin responded to the harshness of products with aggressive ingredients like alcohol. So, in 2011, she took matters into her own hands and opened a skincare studio in San Francisco organized around the basic principles of her grandma, like oil cleansing and the curative potential of plants. Demand was high for her handmade concoctions—including a natural, rose-scented glycolic gel and a repair concentrate made from antibacterial hazelnut oil—so she started packaging and selling a dozen of them under the name Monastery. Those of us who didn’t learn these lessons as kids visiting the Aegean archipelago are eternally grateful.