Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Acid Mantle

a thin, slightly acidic film of sebum, sweat, and other secretions on the skin's surface that helps defend against microbes and environmental stress. Its mildly acidic pH supports barrier enzymes...

Acid Mantle

a thin, slightly acidic film of sebum, sweat, and other secretions on the skin's surface that helps defend against microbes and environmental stress. Its mildly acidic pH supports barrier enzymes...

Microbiome

the community of bacteria, fungi, and other microorganisms that naturally live on the skin's surface and interact with its barrier and immune defenses. A balanced skin microbiome is thought to...

Microbiome

the community of bacteria, fungi, and other microorganisms that naturally live on the skin's surface and interact with its barrier and immune defenses. A balanced skin microbiome is thought to...

Sebum

the oily, waxy substance produced by the skin's sebaceous glands that coats the surface to help limit water loss and keep skin supple. Its output is influenced by hormones, genetics,...

Sebum

the oily, waxy substance produced by the skin's sebaceous glands that coats the surface to help limit water loss and keep skin supple. Its output is influenced by hormones, genetics,...

Cholesterol (Skin)

a naturally occurring lipid that is one of the three essential fats making up the skin barrier, working with ceramides and fatty acids to keep its lipid layers organized and...

Cholesterol (Skin)

a naturally occurring lipid that is one of the three essential fats making up the skin barrier, working with ceramides and fatty acids to keep its lipid layers organized and...

Fatty Acid

a type of lipid built from a chain of carbon atoms that serves as one of the core building blocks of the skin barrier and of many plant oils used...

Fatty Acid

a type of lipid built from a chain of carbon atoms that serves as one of the core building blocks of the skin barrier and of many plant oils used...

Ceramide

a family of waxy lipid molecules that make up a large share of the skin barrier and help hold skin cells together while limiting water loss. Naturally produced in the...

Ceramide

a family of waxy lipid molecules that make up a large share of the skin barrier and help hold skin cells together while limiting water loss. Naturally produced in the...