A new bespoken family of sunscreen compounds have been developed and patented, that share a common mechanism of reaching its final sunscreen protection – in a similar degree to the currently ones used - after a tunable time and wavelength range values. From this family, a specific UV-B candidate has been selected that allows a specific transient conversion starting before 290-310 nm, allowing an equivalent dose of 0.3-0.5 MED to reach the skin before being totally protected afterwards, and therefore making compatible vitamin D production and sun protection which is a clear demand from the market nowadays.
The patented new ingredient is characterized by their response to the arriving UV-light in a way that, the more radiation it receives, the opaquer it becomes to such radiation, acting in a similar way to a “window shade” that starts closing off as soon as it receives the sun light.
The speed of such response is related to the amount of energy received, being quicker for high intensity rays, and slower for lower intensities.
This effect can be tuned-up along the whole UV spectrum, and some specific portions may be chosen by design. We have developed a specific ingredient, that develops their main effect around the value of 290-310 nm wavelength in the UV-B range.
As this “progressive blocking effect” goes from nearly zero up to a high blockage degree, using these ingredients in a topical formulation for the skin, will allow the synthesis of the usual vitamin D amounts produced during a 15-20 minutes of sun exposition without protection, while at the same time limiting such exposition that could became dangerous (UV-B) in case of a more prolonged exposition without protection.
This technology would be widely used in the sunscreen market as it would allow both protection and vitamin D synthesis.
Also, the customer will benefit from all the immune enhancing properties of vitamin D, including but not only, cancer incidence reduction, and a beneficial effect in many diseases.
As a dose-responding sunscreen protection, it will also allow the customers to be not so worried about the different intensities of radiation reaching their skin depending on the time of the day, the season of the year, or the place where they are or if it is a sunny or cloudy day.
Up to now, there has been only two commercial products (Solar-D in Australia, and Photocil, USA) that have partially approached the problem using a fixed UV filter combination or standalone one filter. In both cases, this allows a “lower protection” against UV-B radiation in the range of 300-310 nm wavelength, but that doing it in a permanent way which means that the longer the exposition to the sun, the higher the risk to the exposed skin.
Using TWE as the topical protective formulations for the skin instead, will allow the recommended short exposition to the sun and the benefit of an increased vitamin D production, while not having to worry about when to change to high protection, and therefore avoiding the risk of an over exposition of the skin to the sun.
Currently, there is a real need to allow the UV-B range of 300-310 nm wavelength rays to reach the skin in a safe way, in order to get 90% of the usual amount of vitamin D produced in the body (oral ingestion only produces 10-15% of the needs even when taking high doses, that have the risk of being toxic) whose relevant role in the response of the immune system has been highlighted in the last years and whose deficiency is linked to many relevant disease prognoses (including cancer, diabetes or cardiovascular health among others).
It is not easy to follow doctor`s advice to reach the equilibrium point between 15-20 minutes of sun exposition without protection, and the use of sunscreen protection afterwards, not only because the user should control the change in the two sequential phases needed, but also of the difficulty of doing it when the strength of the sun is different depending of the time of the day, the weather, or the place you are located.
Because of the usual worldwide deficiency of vitamin D in the population, some doctors did start to recommend reducing the use of sunscreen protection whose overuse they think could be one of the contributing causes.
Its innovative technology of production as an inert material prevents the main ingredients from being released into the environment or to be absorbed through the skin.