Skincare.

What the gurus are saying

Gurus who weighed in split on ZO. One praises the line as solid medical-grade skincare and finds it works well when you narrow down to the right products for your skin. The other finds the 'medical grade' label largely marketing spin and bristles at the brand's messaging around moisturizers, particularly that they claim hydration makes skin lazy while selling moisturizing products themselves. That means the line may suit some skin types and philosophies but not others.