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How To Erase Brown Spots Without Harmful Lightening Agents

 
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PostWysłany: Nie Maj 18, 2014 08:55    Temat postu: How To Erase Brown Spots Without Harmful Lightening Agents Odpowiedz z cytatem

How To Erase Brown Spots Without Harmful Lightening AgentsWhat Causes Dark Spots? Dark spots, also known as brown spots, sun spots, age spots, liver spots, cfa sample questions level 1 are the effects of over exposure to the sun or sun damage of the skin. UV radiation can cause oxidation of lipids in cellular membranes, leading to production of free radicals and inflammation, which could stimulate melanocytes to make melanin via activation of tyrosinase. The melanin pigment is produced to absorb sunlight and help protect our skin from the sun's UV radiation. However when melanocytes make too much melanin in the epidermis (outmost layer of the skin), we see the occurrence of dark spots. Other Common Causes Of Hyperpigmentation Melasma Melasma displays large, irregular brown patches on sun-exposed skin such as cheeks, forehead, upper lip, nose, and chin. The precise reason of melasma is unspecified, but multiple factors are suggested, i.e., genetic influences, exposure to UV radiation, pregnancy, birth-control pills, hormonal therapy, thyroid dysfunction, ovarian dysfunction, a number of cosmetics, drugs or procedures (laser treatments and chemical peels). Inflammatory Skin Conditions Various inflammatory skin disorders (acne, eczema, and dermatitis etc.) can cause hyperpigmentation. Inflammatory cells make prostanoids, cytokines, chemokines, and reactive oxygen species. These inflammatory mediators stimulate melanocytes and activate tyrosinase. As a result, hyper-reactive melanocytes produce excess melanin and cause coloring in surrounding keratinocytes, predominant cell type in the epidermis. When inflammation diminishes, melanocytes can return to normal, or remain hyper reactive. Every so often, there is either excess melanin production or an abnormal distribution of melanin pigment deposited in the epidermis, discoloration occurs. Long-term or lapsing inflammation can accelerate skin discoloration and often result in a higher degree of hyperpigmentation. Without treatment, hyperpigmentation may take months to years to fade and every so often become permanent. Brown Spot Lightener Lightening of brown spots or hyperpigmentation involves a great deal of patience and understanding of a variety of treatment options. The general treatments include: --Avoiding sun exposure --Use of sunscreen --Treating the underlying inflammatory conditions --Preventing scratching, rubbing, cfa level 1 sample questions picking --Stopping medications such as tetracyclines, cfa level 1 questions which can exacerbate discoloration --Putting on topical agents such as skin lightening products, bleaching or fading creams --Cosmetic procedures such as chemical peels or laser treatments Word Of Caution On Long-Term Use Of Skin Lightening Products Skin whitening products are able to whiten the dark spot and turn it back to normal or near to normal skin color. The effectiveness depends upon how deep and how old the blemishes are. Deeper and older blemishes may take much longer to lighten. Skin lightening products contain a mixture of active ingredients, which are often unfamiliar to the users. Many of these products include topical steroids, hydroquinone, tretinoin and mercury salts that can have adverse effects on long-term users. Common side effects include: --patchy hyper- or hypo-pigmentation --thinning of the skin --stretch marks --skin irritation --hypersensitivity to the sun --atopic dermatitis --delayed wound healing. Natural Remedies As Brown Spots Lightener To avoid undesirable effects, many natural plant extracts have been investigated as alternative skin lighteners. The following natural plant extracts have shown promising benefits in removing brown spots. Green Tea Extract Green tea extract comprises potent antioxidant, anti-inflammatory, and anti-tumoral polyphenols identified as catechins. These naturally occurring polyphenols are shown to inhibit, reverse or retard UV radiation-induced inflammation, oxidative stress, DNA damage and suppression of immune responses. Studies suggest that green tea extract possesses antioxidant properties by eliminating reactive oxygen species, reducing various enzymes that are promoting oxidative stress, and improving antioxidant defense enzymes. Green tea's anti-inflammatory activities are confirmed via inhibition of the infiltration of inflammatory cells and decrease of inflammatory mediators. Finally, schweser cfa level 2 green tea extract is anti-carcinogenic by blocking carcinogen-DNA binding and later tumorigenesis. Licorice Extract The licorice extract has been widely used in skin lightening products. The part that is responsible for the skin whitening aspect of the plant is known as glabridin. Glabridin inhibits pigmentation by preventing tyrosinase activation. Studies have shown that it can deliver a substantial skin brightening effect while staying harmless to the melanin-forming cells. Licorice's anti-inflammatory properties (due to inhibition of superoxide anion production and cyclooxygenase activity) also make it a very suitable ingredient in treating inflammation-induced discoloration. Bearberry Extract Bearberry extract is derived from the Uva Ursi plant and is a natural substitute to synthetic hydroquinone. Bearberry extract provides a skin lightening effect by inhibiting tyrosinase activity and melanosome maturation. Though arbutin is a natural product of hydroquinone, it does not have the similar risks or side effects. Natural arbutin has been shown to be a very safe ingredient and does not break down into hydroquionone very quickly. Topical Vitamins Many vitamins have strong antioxidant capabilities and may perform a role in processes involved in skin growth and repair. There is strong evidence that vitamin B3 (niacinamide) and vitamin C are involved in modifying the process of hyperpigmentation. The antioxidant properties of these vitamins in topical preparations have confirmed to be efficient in protecting the skin from UV-induced injuries and diminish brown spots. Vitamin B3 is an effective skin lightening ingredient that works by inhibiting melanosome transfer from melanocytes to keratinocytes, lacking of reducing tyrosinase activity or cell proliferation. Vitamin B3 performs best when combined with other skin lightening treatments. Vitamin B3 is also proven to reduce inflammation, increase skin barrier function, reduce sebum production, and minimize wrinkles. Vitamin C is a natural antioxidant that appears in stable and unstable forms. Several types of vitamin C have been shown to lower melanin production and provide a skin whitening effect when put on topically. They include l-ascorbic acid, magnesium ascorbyl phosphate, and sodium ascorbyl phosphate. They have been shown to retard hyperactive melanocytes and slow down hyperpigmentation process.
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