Antioxidants, Free Full-Text
Por um escritor misterioso
Descrição
Skin aging is one of the most evident signs of human aging. Modification of the skin during the life span is characterized by fine lines and wrinkling, loss of elasticity and volume, laxity, rough-textured appearance, and pallor. In contrast, photoaged skin is associated with uneven pigmentation (age spot) and is markedly wrinkled. At the cellular and molecular level, it consists of multiple interconnected processes based on biochemical reactions, genetic programs, and occurrence of external stimulation. The principal cellular perturbation in the skin driving senescence is the alteration of oxidative balance. In chronological aging, reactive oxygen species (ROS) are produced mainly through cellular oxidative metabolism during adenosine triphosphate (ATP) generation from glucose and mitochondrial dysfunction, whereas in extrinsic aging, loss of redox equilibrium is caused by environmental factors, such as ultraviolet radiation, pollution, cigarette smoking, and inadequate nutrition. During the aging process, oxidative stress is attributed to both augmented ROS production and reduced levels of enzymatic and non-enzymatic protectors. Apart from the evident appearance of structural change, throughout aging, the skin gradually loses its natural functional characteristics and regenerative potential. With aging, the skin immune system also undergoes functional senescence manifested as a reduced ability to counteract infections and augmented frequency of autoimmune and neoplastic diseases. This review proposes an update on the role of oxidative stress in the appearance of the clinical manifestation of skin aging, as well as of the molecular mechanisms that underline this natural phenomenon sometimes accelerated by external factors.
What does an Antioxidant do for the skin? Antioxidants, Antioxidant benefit, Free radical damage
Flavonoid Free Radical - Colaboratory
CHICA BEAUTY 3 in 1 Tinted Face Moisturizer with Anti-Aging Antioxidants, Vitamin A&E - SPF 30 Sunscreen with UVA/UVB Protection - Oil Free, Vegan, Cruelty & Paraben Free, For All Skin
Antioxidants, Free Full-Text
Antioxidants, Free Full-Text
MISS SPA Face Mask Skin Care Replenishing & Repairing Full Facial Sheet Mask Set, Antioxidant-Rich Anti-Aging Masks Skin Care for Women, Nourishing Facial Sheet Masks, Dermatologist Tested 5-Pack : Beauty
ACS Symposium Series (ACS Publications)
Understanding antioxidants - Harvard Health
Free Radicals, Oxidative Stress, and Antioxidants
Understanding Free Radicals And Antioxidants (for dummies!)
de
por adulto (o preço varia de acordo com o tamanho do grupo)
