Encyclopedia
Broad-Spectrum
a label indicating that a sunscreen protects against both UVA and UVB radiation rather than one type alone. This distinction matters because UVA contributes to aging and long-term damage while...
Broad-Spectrum
a label indicating that a sunscreen protects against both UVA and UVB radiation rather than one type alone. This distinction matters because UVA contributes to aging and long-term damage while...
Photostability
the ability of an ingredient or formula to remain chemically intact and effective when exposed to light, particularly ultraviolet radiation. In sunscreens it is especially important, because filters that break...
Photostability
the ability of an ingredient or formula to remain chemically intact and effective when exposed to light, particularly ultraviolet radiation. In sunscreens it is especially important, because filters that break...
Photoaging
the premature aging of skin caused by repeated exposure to ultraviolet radiation and other environmental light, distinct from the natural aging that occurs over time. It shows up as wrinkles,...
Photoaging
the premature aging of skin caused by repeated exposure to ultraviolet radiation and other environmental light, distinct from the natural aging that occurs over time. It shows up as wrinkles,...
Photosensitivity
an increased sensitivity of the skin to ultraviolet and visible light, which can make it react more readily with redness, burning, or rash after sun exposure. It may be triggered...
Photosensitivity
an increased sensitivity of the skin to ultraviolet and visible light, which can make it react more readily with redness, burning, or rash after sun exposure. It may be triggered...
Antioxidant
a molecule that neutralizes free radicals and reactive oxygen species, helping to limit oxidative stress in the skin. In skincare, antioxidants such as vitamin C, vitamin E, niacinamide, and ferulic...
Antioxidant
a molecule that neutralizes free radicals and reactive oxygen species, helping to limit oxidative stress in the skin. In skincare, antioxidants such as vitamin C, vitamin E, niacinamide, and ferulic...
Comedogenic
a term describing ingredients or products that have a tendency to clog pores, which can contribute to comedones such as blackheads and whiteheads. How comedogenic something is can depend on...
Comedogenic
a term describing ingredients or products that have a tendency to clog pores, which can contribute to comedones such as blackheads and whiteheads. How comedogenic something is can depend on...
