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        Scientific Report on Sundurance

        Sundurance sunscreen evaluated for effectiveness.

        Sundurance™ capsules form a UV-shield on the skin.

        Scanning electron micrograph of Sundurance™ microencapsulated OMC. Particle size ranges from 10nm to approximately 1μm. Scale bar = 1μm. 90% of the capsules are < 2.5 μm in diameter. They are sufficiently small to be transparent when applied and to give the skin a pleasant feeling. 1 μm

        The benefits of Sundurance™ microencapsulated OMC
        Sundurance’s™ microencapsulating of OMC produces significant benefits in safety, stability and UV-Protection that do not otherwise exist with OMC. No other UVprotecting ingredient can demonstrate better safety ratings!

        Safety
        Sundurance™ microencapsulated OMC does not show any acute toxicity on oral or dermal application and is therefore the best choice in sensitive skin or allergy prone applications.

        Classified as a non-irritant to the skin.
        Sundurance™ microencapsulated OMC shows low spreading property making it ideal for use around the eyes. In addition, Sundurance™ does not show any irritation to the eye after 24 hours of interaction!

        Classified as non-irritant to the eye.
        ree OMC and other UV-absorbing chemicals can trigger free radicals and oxidation on the skin. Sundurance’s™ microencapsulated OMC prevents free radical formation by keeping OMC out of contact with the skin and safely encapsulated in microscopic beads on top of the skin.

        Sundurance’s™ microencapsulated OMC is able to prevent dermal uptake and eliminates irritant potential. In a membrane model with similar pore size of human skin1, 99% of Sundurance remained on top of the membrane. Sundurance inhibits the contact of the OMC with the skin, increasing safety and reducing skin absorption by 70% over free OMC.

        Stability
        Sundurance’s™ microencapsulated OMC has proven benefits for the stability of sunscreen formulations. The encapsulated OMC has been demonstrated to be very stable and resistant to release from with its hermetic encapsulating shield.

        Sundurance™ microencapsulated OMC contributes to the long-term stability of other sunscreen ingredients. In a comparison test with avobenzone (Parsol 1789) mixed with free OMC and Sundurance™ microencapsulated OMC, only 20 percent of avobenzone remained stable after 2 hours with the free OMC, but 70% remained stable with

        Sundurance™ because the encapsulation of the OMC prevents it from interacting with the avobenzone and therefore resists chemical breakdown.

        Sundurance™ OMC has been shown to be 98% resistant to release under recommended storage conditions over a period of two years.

        Sticky tape peal of the skin shows how Sundurance™ layers itself on the skin.

        • Sundurance™ OMC molecules are 98% resistant to release at 133F over a period of three months.
        • Sundurance™ OMC molecules are 97% resistant to release after 24 hours of air-drying.
        • Sundurance™ OMC are 98% resistant to release after passing them, under pressure, through a spray head with orifice diameters of 450μm and 210μm.
        • Sundurance™ OMC molecules are 98% resistant to release under strong pressure from spreading on the skin.

        Increased effectiveness as a UV-Protector

        Sundurance™ microencapsulated OMC boosts SPF over free OMC.

        Free OMC covers the furrows of the skin, but not the ridges; Sundurance™ microencapusalated OMC layers itself on the skin covering even the ridges of the skin and therefore boosts the in vivo SPF over free OMC and protects a greater surface area of the skin!

        Sundurance molecules have a high and stable photo-acoustic response leading to high UV absorption. Approximately 80% of the weight of a Sundurance™ capsule is made up of the UV absorber.

        Full UVB/UVA spectrum coverage

        Ultraviolet sunlight is generally divided into three categories: UVA, UVB, and UVC. UVC light is such that it is blocked by the Earth’s atmosphere, and therefore is not a concern in sunscreen protection. UVB light is a high-energy light that is the one that causes the skin to burn while under the sun. All SPF ratings currently refer only the amount of protection provided from UVB light. UVA light, though generally not responsible for burning the skin, is now know to be the cause of advanced aging (wrinkling) and one of the causes of various skin cancers and disorders.

        • Sundurance™MLT Sunscreen has been specially formulated with two unique UVabsorbing materials to provide UV-protection across the entire UVB/UVA spectrum. Sundurance™ microencapsulated OMC provides protection from the full spectrum of UVB light waves. This protects you from getting burned.
        • Sundurance™ has added a pharmaceutical grade micronized titanium dioxide to its formula. This should not be confused with lesser quality cosmetic grade titanium dioxides—be sure to check the label for the pharmaceutical grade certification!
        • Sundurance’s™ pharmaceutical grade micronized titanium dioxide provides complete UVA spectrum coverage and adds an additional layer of UVB protection to the microencapsulated OMC to assure strong protection while under the harmful rays of the sun. Sundurance’s™ pharmaceutical grade micronized titanium dioxide is specially formulated to leave minimal to no white residue on the skin (depending on the SPF). The end result is a top quality formula that provides complete UVB/UVA spectrum coverage and yet leaves the skin feeling comfortable and looking great!

        Potent Micro-Encapsulated Anti-Oxidants

        Sundurance™MLT contains the most potent antioxidant vitamins and flavanoid in a patented Micro-encapsulation that activates the anti-oxidants directly on your skin. Raw
        vitamins, when placed in normal sunscreen formulas, immediately begin to lose their potency. After a period of about three months after manufacture the vitamins can easily be more than 50% reduced in potency causing them to be virtually ineffective on your skin.

        Sundurance™MLT uses patented technology to
        micro-encapsulate its antioxidant vitamins so that they do not interact with the cream. Therefore, Sundurance’s™ antioxidants retain over 98% of their full potency while in the tube. Unlike Sundurance’s™ OMC micro-encapsulated spheres, the encapsulated antioxidants are quickly opened with the pressure of the fingers applying the cream, releasing the antioxidants to the skin with 98% potency on every application.

        No Skin Penetration

        Penetrating the skin has to do with the charge of the particle, not its size. The charge of the encapsulated OMC makes it incomplatible with penetration of the skin.

        The actual test done to prove this reality is a full epidermal peel by micron layers to find the depth of penetration of the encapsulated particles.

        For this test the encapsulated particles were placed on skin and the corneum layer was then peeled off by micro layers down 20micrometers in depth. After each peel the skin was scanned for encapsulated particles. The deepest that the encapsulated particles were found 5.2 micrometers (26% of the corneum), and even then the concentration of particles at this depth was less than 1 microgram/cm2 (virtually nothing). It is discussed in the literature that the minor penetration of particles even this deep is most likely to the fact that wrinkles on the skin are this deep, and the particles fell to the deepest portions of some wrinkles. The vast majority of particles could not be found deeper than 15% of the corneum, or *3 micrometers* in depth.

        Therefore even though the particle size of the encapsulated OMC is smaller than human pore size, it is incorrect that this translates to the absorption of the particles into the skin. Human skin is a semi-permeable membrane which requires a number of factors to be correct before allowing a particle to penetrate. Particle size is only one of these factors. The encapsulated molecules lack the other qualities necessary to penetrate the dermal barrier and therefore remain on top of the skin. This has been proven through detailed micro layer peel analysis of corneum layer tissue.

        1Tuffryn

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