Skin Care and Treatments of Melbourne Dermatology - Free Radical

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Free Radical


A free radical is an uncharged molecule (typically highly reactive and short-lived) having an unpaired valence electron.

Capable of inflicting lasting and degenerative damage to all skin cells and structures, such as the melanocytes (producing tanning and hyperpigmentation) and dermis (leading to collagen and elastin breakdown/wrinkles).

Tuesday, 17 March 2009

More About Free Radicals

Free radicals are atoms with an odd number of electrons and are formed when oxygen interacts with certain molecules.

The chief danger of free radicals comes from the damage they can do when they react with important cellular components such as DNA, or the cell membrane.

If this occurs, cells may function poorly or die.

To prevent free-radical damage, the body has a defense system of antioxidant molecules that can safely neutralize free radicals and prevent damage from being done to a living cell.

Some free radicals are produced normally by the body.

However, environmental factors such as pollution, radiation, cigarette smoke, and herbicides can also generate free radicals.

If the free-radical production becomes excessive, damage can occur.

It is important to note that free-radical damage accumulates with age.

Skin Care and Dermatological Glossary :

Phospholipids : Alcohols : Dietary Antioxidants : Glycolic Acid : Rosacea : ATP : About Trehalose : Accutane (Isotretinoin) : Acidic : Actinic : Alkaline : Alopecia : Amino Acids : Amphoteric : Angiogenesis : Angioma : Antioxidants : Aqueous : Arc : Arteriole : Artery : Ascorbic Acid / Vitamin C : Atherogenic : Atopic : Benzene : Bioavailability : Bioflavonoid : Biopsy : Biotechnology : Blackhead : Cadaver : Calcium : Capillary : Carboxyl : Carcinogenicity : Carcinoma : Cartilage : Catechins : Cell Division : Cellulitis : Chromatography : Cicatrix : Citric Acid : Citronellol : Coccidioidomycosis : Colitis : Collagen : Colourimetre : Comedo/Comedone : Compound : Connective Tissue : Contusion : Corpus Luteum : Cosmesis : Cyst : Cytochrome : Cytotoxin : Denature : Dermatitis : Dermis : Diabetes : Dibasic Acid : Diploidy/Diploid : Diuretic : Eczema : Edema/Oedema : Elastase: The Unrestrained Thief of Skin Elasticity : Elastin : Electrolysis : Electrophoresis : Emollient : Enantiomer : Endothelium : Environmental Stressors : Enzymes : Eosin : Epidermal Necrosis : Epidermis : Epithelium : Erythema : Essential Fatty Acids : Essential Oils : Esters : Eugenol : Eukaryote/Eukaryotic : Exanthem/Exanthema : Extirpation : Fatty Acids : Ferulic Acid : Fibroblast : Flavonolignan : Flora : Folic Acid (Pteroylglutamic Acid/Vitamin M) : Follicle : Free Radical : Fullerene : Galapagos Tortoise : Gamete : Gene : Genistein : Genome : Genomic DNA : Genotoxin : Glasswort : Glucagon : Glutamic Acid : Glycation : Glycerin : Glycopeptide : Glycoprotein : Glycosaminoglycans : Haploidy/Haploid : Hematoxylin : High Frequency Glass Electrode Beauty Devices : Histology/Histologic : Hives : Hormone : Humectant : Hyaluronic Acid/Sodium Hyaluronate : Hydrocarbon : Hydrolysis : Hydrophilic : Hydrophobic : Hydroxyl (OH) : Hygroscopic : Hypertrophic Scar : Hypochlorous Acid : Hypopigmentation : Immunosuppression : In Summary: Oxidation/Reduction and Tanning : In Vitro : In Vivo : Insulin : Interleukins : Ischemia : Islet : Islets of Langerhans/Islands of Langerhans : Isoprene : Keloid : Keratin : Keratinocytes : Kinase : Lactic Acid : Lactoferrin : Lignin : Limonene : Lipids : Lipophilic : Lymphatic System : MMPs (Matrix Metalloproteinases) : Macromolecule : Malic Acid : Mandelic Acid : Melanin : Melanoma : Membrane : Membrane : Mermaid : Metabolism : Metalloproteinases : Metastatic : Methionine : Micellization : Microtubule : Mineral : Molecular/Cellular Biology: Skin Functioning at the most Essential Level : Molecule : Moles (Blemishes)/Moles Per Litre : Monomer : Mucin : Mucoproteins : Myelin : Nanotechnology : Neurotoxin : Nitrogen : Nodule : Nymph : ORAC : Occlusive : Optic : Otorhinolaryngology : Oxygen : Oxytalan Fibers/Fibres : Ozone : Palmitic Acid : Papain : Papillary Dermis : Papule : Pentacyclic : Pentapeptides GM and GD : Pentose : Peptidases : Peptides : Perichondrium : Peroxidase : Peroxide : Phenol : Phlebitis : Photosensitivity : Phytostimulines : Pigmentation : Pimple : Pledget : Polymer : Polymer/Polymeric : Polypeptide : Polyquaterium-51 : Post-Inflammatory Hyperpigmentation : Pro-Collagen : Prodrug : Proenzymes : Prophylaxis : Propionibacterium / P. Acnes Bacteria : Proteases : Protein : Proteoglycans : Proteolytic Enzymes : Proteome : Pruritus : Psoriasis : Pure/Purity : Pustule : Radiation : Radical : Redox : Reductase : Reperfusion : Restenosis : Reticular Dermis : Retinol : Rhinoplasty : Rockfish : Saccharides : Sebum : Selenium (Definition) : Selenosis : Senescence : Sentinel : Skin Resurfacing by Laser : Skin Structure Diagram : Sodium PCA : Squamous : Stable/Stability : Stenosis : Stratum Corneum : Subclinical Inflammation : Subcutis : Sulfur : Surfactant : Synovial : Tannins : Tartaric Acid : Telomere : Temporal Bones : Thermoregulation / Thermoregulate : Thymine Dimer : Tocopherol : Transferase : Tribasic Acid : Triterpenoid : Tropoelastin : Tubulin : Ubiquinone — Co-Enzyme Q-10 : Vascular : Vascular Epithelial Growth Factor : Vein : Venule : Vestibule : Viscous : Vitamin K : Vitamin PP/Nicotinate : Vitamins : Whitehead : Xerosis : Zygoma : Zygote : pH :

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Skin Care and Dermatological Glossary :

Phospholipids : Alcohols : Dietary Antioxidants : Glycolic Acid : Rosacea : ATP : About Trehalose : Accutane (Isotretinoin) : Acidic : Actinic : Alkaline : Alopecia : Amino Acids : Amphoteric : Angiogenesis : Angioma : Antioxidants : Aqueous : Arc : Arteriole : Artery : Ascorbic Acid / Vitamin C : Atherogenic : Atopic : Benzene : Bioavailability : Bioflavonoid : Biopsy : Biotechnology : Blackhead : Cadaver : Calcium : Capillary : Carboxyl : Carcinogenicity : Carcinoma : Cartilage : Catechins : Cell Division : Cellulitis : Chromatography : Cicatrix : Citric Acid : Citronellol : Coccidioidomycosis : Colitis : Collagen : Colourimetre : Comedo/Comedone : Compound : Connective Tissue : Contusion : Corpus Luteum : Cosmesis : Cyst : Cytochrome : Cytotoxin : Denature : Dermatitis : Dermis : Diabetes : Dibasic Acid : Diploidy/Diploid : Diuretic : Eczema : Edema/Oedema : Elastase: The Unrestrained Thief of Skin Elasticity : Elastin : Electrolysis : Electrophoresis : Emollient : Enantiomer : Endothelium : Environmental Stressors : Enzymes : Eosin : Epidermal Necrosis : Epidermis : Epithelium : Erythema : Essential Fatty Acids : Essential Oils : Esters : Eugenol : Eukaryote/Eukaryotic : Exanthem/Exanthema : Extirpation : Fatty Acids : Ferulic Acid : Fibroblast : Flavonolignan : Flora : Folic Acid (Pteroylglutamic Acid/Vitamin M) : Follicle : Free Radical : Fullerene : Galapagos Tortoise : Gamete : Gene : Genistein : Genome : Genomic DNA : Genotoxin : Glasswort : Glucagon : Glutamic Acid : Glycation : Glycerin : Glycopeptide : Glycoprotein : Glycosaminoglycans : Haploidy/Haploid : Hematoxylin : High Frequency Glass Electrode Beauty Devices : Histology/Histologic : Hives : Hormone : Humectant : Hyaluronic Acid/Sodium Hyaluronate : Hydrocarbon : Hydrolysis : Hydrophilic : Hydrophobic : Hydroxyl (OH) : Hygroscopic : Hypertrophic Scar : Hypochlorous Acid : Hypopigmentation : Immunosuppression : In Summary: Oxidation/Reduction and Tanning : In Vitro : In Vivo : Insulin : Interleukins : Ischemia : Islet : Islets of Langerhans/Islands of Langerhans : Isoprene : Keloid : Keratin : Keratinocytes : Kinase : Lactic Acid : Lactoferrin : Lignin : Limonene : Lipids : Lipophilic : Lymphatic System : MMPs (Matrix Metalloproteinases) : Macromolecule : Malic Acid : Mandelic Acid : Melanin : Melanoma : Membrane : Membrane : Mermaid : Metabolism : Metalloproteinases : Metastatic : Methionine : Micellization : Microtubule : Mineral : Molecular/Cellular Biology: Skin Functioning at the most Essential Level : Molecule : Moles (Blemishes)/Moles Per Litre : Monomer : Mucin : Mucoproteins : Myelin : Nanotechnology : Neurotoxin : Nitrogen : Nodule : Nymph : ORAC : Occlusive : Optic : Otorhinolaryngology : Oxygen : Oxytalan Fibers/Fibres : Ozone : Palmitic Acid : Papain : Papillary Dermis : Papule : Pentacyclic : Pentapeptides GM and GD : Pentose : Peptidases : Peptides : Perichondrium : Peroxidase : Peroxide : Phenol : Phlebitis : Photosensitivity : Phytostimulines : Pigmentation : Pimple : Pledget : Polymer : Polymer/Polymeric : Polypeptide : Polyquaterium-51 : Post-Inflammatory Hyperpigmentation : Pro-Collagen : Prodrug : Proenzymes : Prophylaxis : Propionibacterium / P. Acnes Bacteria : Proteases : Protein : Proteoglycans : Proteolytic Enzymes : Proteome : Pruritus : Psoriasis : Pure/Purity : Pustule : Radiation : Radical : Redox : Reductase : Reperfusion : Restenosis : Reticular Dermis : Retinol : Rhinoplasty : Rockfish : Saccharides : Sebum : Selenium (Definition) : Selenosis : Senescence : Sentinel : Skin Resurfacing by Laser : Skin Structure Diagram : Sodium PCA : Squamous : Stable/Stability : Stenosis : Stratum Corneum : Subclinical Inflammation : Subcutis : Sulfur : Surfactant : Synovial : Tannins : Tartaric Acid : Telomere : Temporal Bones : Thermoregulation / Thermoregulate : Thymine Dimer : Tocopherol : Transferase : Tribasic Acid : Triterpenoid : Tropoelastin : Tubulin : Ubiquinone — Co-Enzyme Q-10 : Vascular : Vascular Epithelial Growth Factor : Vein : Venule : Vestibule : Viscous : Vitamin K : Vitamin PP/Nicotinate : Vitamins : Whitehead : Xerosis : Zygoma : Zygote : pH :


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