Comprehensive UVA protection is no longer optional for sunscreen makers

The last decade has seen a measurable increase in the demand for increased sunscreen performance, and the result has been the development of products with an SPF index of as high as 50 or more.

But high SPF isn’t enough. Consumers are also demanding more protection from photo-aging free radicals. Paradoxically, this comes at a time when various ecological, sensory performance, or health-related issues have caused many sunscreen manufacturers to move towards formulations with lower concentrations of UV filters.

Fortunately, data shows that the inclusion of a high-quality UVA filter in a sunscreen formulation can help sun care makers meet these growing performance requirements with lower overall UV filter concentrations. Furthermore, the reduction of UVA irradiation can also be used to support anti-aging claims of sun care products.

Reducing the promotion of free radicals remains a key focus
Free radicals are energized molecules that are highly reactive and can damage DNA and skin cells, resulting in skin ageing, and in the long term even may result in skin cancer. Modern sunscreens must be carefully formulated and tested to ensure they offer the effective, long-lasting protection against potential damage caused by free radicals.

As UVA not only accelerates photo aging but also paves the way for the formation of free radicals, filtering out potential damage caused by its rays is vital if consumer expectations are to be met. Sunscreens featuring an optimally balanced broad spectrum absorption with high level photostability and efficient UVA protection are ultimately far more effective in slowing free radical production than competitive products offering only single-UV range coverage.

UVA filters also play a pivotal role in attaining high SPF values
Having to offer higher SPF values within a lower concentration of UV filters also increases manufacturers’ need to upgrade the performance of their UVA filters. Globally harmonized in-vivo and in-vitro test methods are now available to measure UVA protection, and different combinations of data show that UVA filters are essential if SPF values are to be increased using lower overall concentrations.

Furthermore, demand for sunscreens that effectively protect sensitive skin types against photodermatosis is growing all the time. Using mild and less irritating ingredients is vital for manufacturers targeting their sunscreens at consumers who are increasingly aware of, and eager to protect, their sensitive skin types. This is especially true in developed markets where consumers are increasingly turning to niche products to satisfy their unique needs. (refer to “High levels of free radicals in suncare products induce acne aestivalis in sensitive subjects”, SOFW Journal, January 2016)

Want to know how you can add enhanced UVA protection to your formulation to increase SPF performance and protect against free radicals? Contact us so we can share our insight and expertise in developing solutions for the sunscreen industry.