Skin Care and Treatments of Melbourne Dermatology - Photoprotection

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Photoprotection

Photoprotection

Exposure to UV rays is the number one cause of photoaging and other skin damage such as skin cancer.

Protecting the skin from UV light is essential to the prevention of photoaging and skin cancers.

UVB rays make up approximately 5% of UV radiation that reaches the earth and can penetrate the epidermis to cause visible burning.

UVB's potential to permanently damage skin may be mitigated in certain circumstances by cloud coverage, seasonality, or minimising time spent outdoors.

UVA rays make up the remaining 95% of UV radiation that reaches the earth.

UVA has an ability to penetrate deep into the dermal layers to attack the molecules of the skin's matrix, resulting in premature and permanent aging of the skin, outwardly visible as:

Unlike UVB rays, UVA rays are present in abundant amounts year round and can penetrate through clouds and glass.

Incrementally — as you commute, shop or engage in other brief daytime activities — UVA rays modify the skin's DNA.

Photoprotection and Mexoryl

Mexoryl represents a major innovation in sunscreen technology. It is the first filter in a sunscreen formula approved for use in the United States in 18 years.

Mexoryl underwent rigorous FDA safety and efficacy testing for over a decade.

Mexoryl SX is the first filter to provide superior protection from short UVA rays (320 nm to 350 nm), a range that was previously under-protected yet represents a great threat of premature photoaging of the skin.

The combination of Mexoryl SX, octocrylene and avobenzone makes Skinceuticals Active UV Defense SPF 15 a strong additional tool in our armamentarium against photoaging and skin cancer for individuals with active lifestyles consistently exposed to brief periods of UV radiation throughout the day.

Photoprotection and Topical Primary Antioxidants

Studies show that even with the best UVA/UVB sunscreen, only up to 55% of free radicals are blocked, and that:

Topical antioxidants may be problematic however when implemented correctly help in cultivating far more perfect photoprotection by working below the skin's surface to neutralise free radicals and protect against UV-induced oxidative damage.

Photoprotection Topics

Related Skin Care Information, Products and Expert Discussions

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Skinceuticals Active UV Defense SPF 15 with Mexoryl SX

Dr. Albert Laporte

Photodamage

Bungling Avobenzone



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La Roche-Posay Redermic

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Azelaic Acid

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Panthenol

Aster Family of Plants

Green Tea (Camellia Sinensis) Extract

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Salicylic Acid

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Open Pores

Phytosphingosine

Glycerin

Idebenone

Ascorbyl Palmitate

Kojic Acid

Algorithm for Optimal Sustained Exfoliation: Glycolic Acid

Comparison of 33 Sunscreens