Skin Care and Treatments of Melbourne Dermatology - Effects of UVA Exposure

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Effects of UVA Exposure

Effects of UVA Exposure

The visible damaging effects of UVA only appear after years of exposure.

Early stages of incremental skin deterioration aren't visible to the naked untrained eye, so typically people will manage to secure copious impairment of their skin's functions (and therefore appearance) without meaningful intervention.

In recent years, the harmfulness of UVA has been more precisely demonstrated at cellular and molecular levels, using methods focused on the identification of biological targets of UVA radiation and the resulting cascade of impairment of cell functions and tissue denaturation.


Comparatively little exposure to UVA under conditions of anything less than near perfect protection sets marked aging en route:

  • wrinkling;
  • wilting;
  • laxity;
  • sagging;
  • shrivelled/shallow features;
  • sallow coloring;
  • patchy/mottled (hyper)pigmentation;
  • telangiectasia (broken capillaries);
  • dryness;
  • roughness;
  • and more (avoidable) aesthetic delights ...

Ideal protection is not offered by sunscreens alone.

Only certain sunscreens combined with certain antioxidants and retinoids found in formulas which reach the dermis constitute marked prevention of premature photoaging and allow for the best reversal of pre-existing skin aging currently possible.

Prescriptions:

Request:

Photoprotection by combination topical antioxidants vitamin C and vitamin E. Journal of the American Academy of Dermatology, Volume 48, Issue 6, Pages 866-874.

A Topical Antioxidant Solution Containing Vitamin C, Vitamin E, and Ferulic Acid Prevents Ultraviolet Radiation-Induced Caspase-3 Induction in Skin.

Thursday, 18 December 2008

Why Protect Against UVA Exposure?

Why Protect Against UVA Exposure?

Sunscreen SPF numbers pertain to UVB protection only, however different sunscreen ingredients and brands actually provide different protection.

Optimal protection against both UVA and UVB rays is important.

While UVB is primarily responsible for basal and squamous cell carcinomas, malignant melanomas and actinic keratoses, UVA threatens:

  • decreased immune response against skin cancer;

  • more dyspigmentation than UVB;

  • dermal damage, including permanent wrinkling changes (vimentin);

  • oxidative DNA damage, leading to mutations.

For further information, see the Recommended Sunscreens, Optimal Sunscreen Use and The Truth About Sunscreens).

Related Skin Care Information, Products and Expert Discussions

Cosmetic Dermatology Newsletter Summer 2007

Dr. Albert Laporte

Skinceuticals Broken Capillary Protocols

How Does Daylight Permanently Damage Skin?

Skinceuticals C E Ferulic Published Scientific Data


Skin Care: April 2007 :

UVA: The Trojan Horse of Premature Ageing of the Skin : Effects of UVA Exposure : Flaws in The Current Evaluation of SPF (Sun Protection Factor) : True Broad Spectrum Sunscreen in Action: Protection of Skin Cell Nuclei and Keratinocytes : Different Sunscreens provide Different Skin Protection : Jan Marini Antioxidant Daily Face Protectant SPF 30 vs. Skinceuticals Daily Sun Defense SPF 20 : Mature Skin Analysis: Firmness and Elasticity of Healthy vs. Unhealthy Mature Skin : Photoprotection by Topical Trifolium Pratense — Red Clover : Zinc: An Important Antioxidant for Skin : Sunscreen around the Eyes : Photobiologic Basics of Anti-Aging/Skin-Rejuvenating Phototherapy : Anti-Aging Phototherapy by LEDs : Open Pores — Quick Fix Treatment and Lasting Prevention : Darphin Hydraskin: Imperata Cylindrica : Propensity for Vitamin C (as Ascorbic Acid) to Stimulate Acne : Evening Use of Gernetic Adipo/Gasta : Unsafe Flattery: Counterfeit Jan Marini Age Intervention Eyelash : Revised Ingredients: Jan Marini Age Intervention Eyelash : Jan Marini Age Intervention Cream and Serum Ingredient Comparison :


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