Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Skin Hydration and Water Content

the amount of water held within the skin, particularly in the outermost layer, which keeps it soft, flexible, and functioning as an effective barrier. Adequate hydration depends on both the...

Skin Hydration and Water Content

the amount of water held within the skin, particularly in the outermost layer, which keeps it soft, flexible, and functioning as an effective barrier. Adequate hydration depends on both the...

The Nail Unit

the collection of structures that produce and support the nail, including the nail plate, nail bed, matrix, cuticle, and surrounding folds. Together they generate the hard, protective covering over the...

The Nail Unit

the collection of structures that produce and support the nail, including the nail plate, nail bed, matrix, cuticle, and surrounding folds. Together they generate the hard, protective covering over the...

Hair Follicles and the Pilosebaceous Unit

the combined structure of a hair follicle and its attached sebaceous gland, which together produce hair and sebum through a shared opening at the skin's surface. This unit is central...

Hair Follicles and the Pilosebaceous Unit

the combined structure of a hair follicle and its attached sebaceous gland, which together produce hair and sebum through a shared opening at the skin's surface. This unit is central...

Sweat Glands and Thermoregulation

structures in the skin that produce sweat, which cools the body as it evaporates from the surface. This process is the main way skin helps maintain a stable internal temperature...

Sweat Glands and Thermoregulation

structures in the skin that produce sweat, which cools the body as it evaporates from the surface. This process is the main way skin helps maintain a stable internal temperature...

Nerve Endings and Skin Sensation

specialized sensory receptors distributed throughout the skin that detect touch, pressure, temperature, vibration, and pain. They convert these stimuli into nerve signals, allowing the skin to serve as the body's...

Nerve Endings and Skin Sensation

specialized sensory receptors distributed throughout the skin that detect touch, pressure, temperature, vibration, and pain. They convert these stimuli into nerve signals, allowing the skin to serve as the body's...

Blood Supply to the Skin

the network of vessels that delivers oxygen and nutrients to skin cells, removes waste, and helps regulate body temperature. This circulation runs mainly through the dermis and strongly influences skin...

Blood Supply to the Skin

the network of vessels that delivers oxygen and nutrients to skin cells, removes waste, and helps regulate body temperature. This circulation runs mainly through the dermis and strongly influences skin...