Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Uneven Skin Tone

a general term for visible variation in the skin's color and clarity, including patches that appear darker, redder, or duller than the surrounding areas. It can stem from sun exposure,...

Uneven Skin Tone

a general term for visible variation in the skin's color and clarity, including patches that appear darker, redder, or duller than the surrounding areas. It can stem from sun exposure,...

Freckles

small, flat spots of concentrated melanin that most often appear on sun-exposed areas like the cheeks, nose, and shoulders. They are influenced by genetics and are triggered or darkened by...

Freckles

small, flat spots of concentrated melanin that most often appear on sun-exposed areas like the cheeks, nose, and shoulders. They are influenced by genetics and are triggered or darkened by...

Sun Spots and Solar Lentigines

flat, well-defined patches of increased pigment that develop on areas repeatedly exposed to the sun, such as the face, hands, shoulders, and upper chest. They form when ultraviolet light stimulates...

Sun Spots and Solar Lentigines

flat, well-defined patches of increased pigment that develop on areas repeatedly exposed to the sun, such as the face, hands, shoulders, and upper chest. They form when ultraviolet light stimulates...

Nasolabial Folds

the two lines that run from the sides of the nose down to the corners of the mouth, sometimes called smile lines. They are a normal part of facial anatomy...

Nasolabial Folds

the two lines that run from the sides of the nose down to the corners of the mouth, sometimes called smile lines. They are a normal part of facial anatomy...

Forehead Lines

the horizontal creases that stretch across the forehead, formed mainly by the repeated lifting of the eyebrows. Over time these dynamic lines can become more visible even at rest as...

Forehead Lines

the horizontal creases that stretch across the forehead, formed mainly by the repeated lifting of the eyebrows. Over time these dynamic lines can become more visible even at rest as...

Crow's Feet

the fine lines and creases that fan out from the outer corners of the eyes, named for their resemblance to a bird's footprint. They form largely from repeated squinting and...

Crow's Feet

the fine lines and creases that fan out from the outer corners of the eyes, named for their resemblance to a bird's footprint. They form largely from repeated squinting and...