Field Notes

Panthenol in Skincare: What Can It Add to a Moisturizer?

Panthenol, or provitamin B5, helps skin hold water. Small studies of dexpanthenol found better hydration and less water loss, even on irritated skin. Here's how it fits in a moisturizer.

Glycerin vs. Hyaluronic Acid: What Matters When Choosing a Moisturizer?

Glycerin and hyaluronic acid both help skin hold water, and both have improved hydration in tested creams. Comfort, texture and layering matter more than which one a label names.

Can You Use Peptides and Hyaluronic Acid Together?

Peptides and hyaluronic acid can be used together, even in one formula. Your peptide product or moisturizer may already contain hyaluronic acid, so check before adding a serum.

How Do Lipids Moisturize Skin?

A moisturizer doesn't need water to keep skin moist. Lipids soften rough skin, slow water loss and can add to the lipids in skin's own barrier. Here's how each job works.

Dry vs. Dehydrated Skin: What’s the Difference, and What Helps?

Skin can look shiny and still feel tight, because oil and water are separate qualities of skin. Learn the difference between dry and dehydrated skin and what helps each.

Occlusives vs. Emollients vs. Humectants: What Does a Damaged Skin Barrier Need?

A moisturizer doesn't have to add water to keep skin hydrated. Occlusives slow water loss, emollients soften and humectants hold water, and one product can do all three.