Solumbra

47.61237°N 122.3365°W / 47.61237; -122.3365

Solumbra
TypePrivate
IndustryRetail
Founded1992
FounderShaun Hughes
HeadquartersSeattle, Washington, USA
ProductsClothing
Websitesunprecautions.com

Solumbra is a line of sun protection clothing and a patented fabric that was introduced in 1992.

History

Solumbra was developed by Shaun Hughes, who was diagnosed and treated for malignant melanoma at age 26 during a visit to Memorial Sloan-Kettering Cancer Center. He felt that traditional UV protection was insufficient, as he would tan through sunscreen and get sunburned through his summer clothing. Based on medical research and involvement of UV and medical experts, Hughes developed the Solumbra line of fabric and clothing.

Solumbra entered the United States marketplace in 1992. Solumbra was reviewed under medical device regulations by the U.S. Food and Drug Administration (FDA)[1] and Health Canada. No sun protective clothing had previously been reviewed as a medical device in the United States or Canada.[2] Solumbra offered improved and superior ultraviolet (UV) protection compared to a conventional 30 SPF sunscreen and typical summer clothing. Solumbra sun protective clothing is rated at 100+ SPF.

The Solumbra logo depicts the sun’s rays eclipsed by effective sun protection that, in turn, provides an area of safe shade.

Technology

The main goal of Solumbra fabrics is to prevent UV from transmitting through the garment's fibers and apertures (holes between the fibers). Hughes developed the technology without treatments or coatings that could lose their effectiveness after use.

Solumbra clothing designs are based on published medical guidelines.[3] Designs are typically long-sleeved, long-legged, or wide-brimmed to cover the maximum amount of skin.

Research

Sun protection clothing can offer superior photoprotection because of some common problems with sunscreen: misapplication, low durability, poor reapplication behavior, and poor cosmetic elegance.

R. Sayre was the lead researcher of in vitro SPF testing for traditional summer fabrics. This revealed that traditional summer clothing in North America offered less than 15 SPF protection, the minimum level recommended by doctors. These traditional summer fabrics tested between SPF 5–9 when dry and SPF 3–9 when wet.[4] Nicholas Lowe and R Sayre followed this up with in vivo research.[5][6] They found that Solumbra achieved over 50 SPF when dry or wet.

In vivo research spearheaded by J Menter and Sayre, published in the Journal of the American Academy of Dermatology, showed that most mice contracted squamous cell carcinoma (SCC) skin cancers through typical summer fabrics, and mice protected by Solumbra fabrics did not incur skin cancers.[7] Subsequent research by Menter and Sayre found that specific Solumbra fabrics provided photoprotection for mice against injury from visible light when sensitized with the photosensitizer, ALA, compared to insufficient protection by typical summer fabric.[8] Research was just presented by an independent researcher in March 2012 showing that Solumbra fabrics now offer 100+ SPF even after 500 durability cycles.

References
  1. U.S. FDA 510(k)Premarket Notification. Device Classification: Sun Protective Clothing: 510(K) K920240. FDA Consumer
  2. FDA Consumer Jul-Aug 1995; Thwarting skin cancer with sun sense – includes related articles on ultraviolet radiation, artificial sunlight, and ultraviolet exposure http://findarticles.com/p/articles/mi_m1370/is_n6_v29/ai_17280008/pg_2/
  3. Keeling JH, Kraus EW, Pathak M, Sober AJ. Hats: design and protection from ultraviolet radiation. Mil Med, 1989 May;154(5):250-5.
  4. Sayre RM, Hughes SNG. Sun Protective Apparel: advancements in sun protection, Skin Cancer Journal, 1993, 8:41-47.
  5. Lowe NJ, Bourget T, Hughes S, Sayre RM. UV protection offered by clothing: An In Vitro and In Vivo Assestment of Summer Clothing Fabrics, Skin Cancer Journal, 1995; 10:89-96.
  6. Lowe NJ, Bourget T, Hughes S, Sayre RM. UV protection offered by clothing: An In Vitro and In Vivo Assetment of Summer Clothing Fabrics, in Sunscreens: Development, Evaluation, and Regulatory Aspects. Lowe NJ, Shaath NA Pathak MA (eds). 2nd ed Marcel Dekker, Inc. 1996, 619-629.
  7. Menter JM, Hollins TD, Sayre RM, Etemadi AA, Willis I, Hughes SNG. Protection against UV photocarcinegensis by fabric materials, J Am Acad Dermatology 1994; 31:711-716.
  8. Menter JM, Hollins TD, Sayre RM, Etemadi AA, Willis I, Hughes SNG. Protection against photodynamic therapy (PDT)-induced photosensitivity by fabric material, Photoderm Photoimmunol Photomed 1998; 4:154-159.
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