Synergistic UV Filter Compositions for High SPF with Reduced Load
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Solution Overview
Problem
Current sunscreen compositions require high amounts of UV filters to achieve effective Sun Protection Factors (SPF), which is not desirable for user safety and product efficiency.
Innovation Solution
A synergistic combination of specific UV filters, including octocrylene, avobenzone, Uvinul T150, Mexoryl SX, and Mexoryl XL, in particular ratios, is used to create a sunscreen composition that achieves high SPF with lower overall UV filter amounts, eliminating the need for boosters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high amounts of UV filters are used in sunscreen compositions, then the Sun Protection Factor (SPF) is improved, but the quantity of substance increases which is not desirable for user safety and product efficiency
Solution Approach 1:
The patent changes the concentration parameters of individual UV filters within the combination. By optimizing the specific amounts of each filter (octocrylene, avobenzone, Uvinul T150, Mexoryl SX, Mexoryl XL), the formulation achieves high SPF with reduced total UV filter quantity compared to conventional single-filter or non-optimized formulations.
Solution Approach 2:
The patent employs a composite approach by combining multiple UV filters with different mechanisms of action and spectral coverage. This synergistic combination of five different UV filters creates a formulation that achieves superior SPF protection with lower total filter concentration than would be required for single-filter systems.
2Reliability
If high amounts of UV filters are used to achieve effective SPF, then the UV protection is improved, but the formulation complexity increases requiring additional boosters
Solution Approach 1:
The patent uses a composite material system consisting of five specifically selected UV filters that work synergistically together. This composite formulation achieves effective UV protection without requiring additional booster ingredients, thereby reducing formulation complexity compared to conventional approaches that need boosters to achieve similar protection levels.
Solution Approach 2:
Each UV filter in the combination serves multiple functions: octocrylene provides UV absorption and stabilizes avobenzone, avobenzone covers UVA wavelengths, Uvinul T150 and Mexoryl SX/Mexoryl XL provide complementary UV filtration. This multi-functionality of the filter combination eliminates the need for separate booster ingredients.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition provides excellent SPF protection with reduced UV filter usage, allowing for a range of SPF values from 5 to 150 or higher without the need for additional boosters, ensuring effective UV protection with a more efficient and potentially safer formulation.
Implementation Method 1
The present disclosure relates to sunscreen compositions comprising a synergistic combination of ultra violet ("UV") filters, and to methods of using the combination of UV filters to protect keratinous substrates such as skin and hair from UV radiation
Data Source
AI summary
The disclosure relates to sunscreen compositions having a synergistic combination of ultraviolet light (UV) filtering agents that provide a high sun protection factor (SPF). Compositions according to the disclosure have high SPF values without requiring high overall amounts of UV filtering agents. Furthermore, the disclosure relates to methods of using the described compositions for protecting keratinous substances such as skin and hair from UV radiation.