Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Crepey Skin

thin, finely wrinkled skin with a loose, crinkled texture that resembles crepe paper. It typically appears on areas like the under-eyes, neck, arms, and knees, and results from a gradual...

Crepey Skin

thin, finely wrinkled skin with a loose, crinkled texture that resembles crepe paper. It typically appears on areas like the under-eyes, neck, arms, and knees, and results from a gradual...

Under-Eye Bags and Puffiness

mild swelling or fullness in the lower eyelid area, ranging from temporary morning puffiness to more persistent bags. They develop from fluid retention, weakening of the tissues that support the...

Under-Eye Bags and Puffiness

mild swelling or fullness in the lower eyelid area, ranging from temporary morning puffiness to more persistent bags. They develop from fluid retention, weakening of the tissues that support the...

Dark Circles Under the Eyes

discoloration or shadowing of the skin beneath the lower eyelids that can appear brown, blue, purple, or as a hollow shadow. They arise from a mix of factors including thin...

Dark Circles Under the Eyes

discoloration or shadowing of the skin beneath the lower eyelids that can appear brown, blue, purple, or as a hollow shadow. They arise from a mix of factors including thin...

Photodamage and Photoaging

the cumulative harm to skin caused by long-term exposure to ultraviolet and visible light, leading to signs such as wrinkles, uneven tone, dark spots, and loss of firmness. Unlike natural...

Photodamage and Photoaging

the cumulative harm to skin caused by long-term exposure to ultraviolet and visible light, leading to signs such as wrinkles, uneven tone, dark spots, and loss of firmness. Unlike natural...

Sunburn

skin damage caused by overexposure to ultraviolet radiation, resulting in redness, warmth, pain, and sometimes swelling or blistering. It is an inflammatory response that reflects injury to skin cells and...

Sunburn

skin damage caused by overexposure to ultraviolet radiation, resulting in redness, warmth, pain, and sometimes swelling or blistering. It is an inflammatory response that reflects injury to skin cells and...

Allergic Reactions and Hives

immune responses in which the skin reacts to a trigger, sometimes producing hives, which are raised, itchy welts that can appear and fade within hours. Reactions may be caused by...

Allergic Reactions and Hives

immune responses in which the skin reacts to a trigger, sometimes producing hives, which are raised, itchy welts that can appear and fade within hours. Reactions may be caused by...