How to Layer Serum, Cream and Sunscreen

Why viscosity, not price, decides order

Start with a plain reading of the heading: why viscosity, not price, decides order. What that means in practice — for a customer choosing a product or starting a routine — is less theatrical than marketing usually implies, and more useful.

There is a quieter version of every skincare claim. We prefer the quieter one — it is the one that holds up when you read the label in daylight.

The one-minute rule

Start with a plain reading of the heading: the one-minute rule. What that means in practice — for a customer choosing a product or starting a routine — is less theatrical than marketing usually implies, and more useful.

None of this is a medical promise. It is the craft of making a formula feel right on skin, and making a routine one can actually keep.

Sunscreen is the last word

Start with a plain reading of the heading: sunscreen is the last word. What that means in practice — for a customer choosing a product or starting a routine — is less theatrical than marketing usually implies, and more useful.

We've learned to describe this with care — what we say in marketing and what we say in a lab notebook aren't always the same, and the customer deserves the lab version.