Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Estrogen and Skin

a primary sex hormone that supports skin thickness, collagen content, and hydration by influencing fibroblasts and the skin's water-binding components. Its decline, particularly around menopause, is linked to thinner, drier,...

Estrogen and Skin

a primary sex hormone that supports skin thickness, collagen content, and hydration by influencing fibroblasts and the skin's water-binding components. Its decline, particularly around menopause, is linked to thinner, drier,...

Androgens and Sebum Production

a group of hormones, including testosterone and its potent derivative DHT, that stimulate the sebaceous glands to produce sebum. Their activity largely determines how oily the skin is and plays...

Androgens and Sebum Production

a group of hormones, including testosterone and its potent derivative DHT, that stimulate the sebaceous glands to produce sebum. Their activity largely determines how oily the skin is and plays...

Cortisol and the Skin

a steroid hormone released by the adrenal glands during stress that influences the skin by modulating inflammation, barrier function, and oil production. When chronically elevated, it can impair the skin...

Cortisol and the Skin

a steroid hormone released by the adrenal glands during stress that influences the skin by modulating inflammation, barrier function, and oil production. When chronically elevated, it can impair the skin...

Hormones and Skin Health

the influence that chemical messengers like estrogen, androgens, cortisol, and thyroid hormones have on the skin's oil production, hydration, collagen, and overall appearance. Because skin responds to these signals throughout...

Hormones and Skin Health

the influence that chemical messengers like estrogen, androgens, cortisol, and thyroid hormones have on the skin's oil production, hydration, collagen, and overall appearance. Because skin responds to these signals throughout...

The Endocrine System and Skin

the connection between the body's hormone-producing glands and the skin, which is both a target of circulating hormones and capable of producing and responding to hormones locally. Because skin cells...

The Endocrine System and Skin

the connection between the body's hormone-producing glands and the skin, which is both a target of circulating hormones and capable of producing and responding to hormones locally. Because skin cells...

Glycation and Skin Aging

a process in which sugar molecules bind to proteins such as collagen and elastin, forming compounds called advanced glycation end products that can stiffen and weaken these structural fibers. In...

Glycation and Skin Aging

a process in which sugar molecules bind to proteins such as collagen and elastin, forming compounds called advanced glycation end products that can stiffen and weaken these structural fibers. In...