Antioxidant Compositions Absorbing High Energy Visible Light
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Solution Overview
Problem
Conventional sunscreens do not provide protection against high energy visible (HEV) light in the 380-500 nm range, which is emitted by CFLs, LEDs, and electronic devices, leading to skin damage and oxidative stress.
Innovation Solution
Topical compositions containing natural oils and extracts such as extra virgin olive oil, wheat germ oil, and sea buckthorn oil, which absorb a significant percentage of HEV light and reduce reactive oxygen species, providing a HEV/VIS ratio of at least 1.5 for protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional sunscreen compositions are used, then protection against UV light below 380 nm is provided, but protection against HEV light in the 380-500 nm range is not provided
Solution Approach 1:
The patent changes the spectral absorption parameters of the sunscreen composition by incorporating natural oils and extracts (olive oil, wheat germ oil, sea buckthorn oil, pomegranate oil) that specifically absorb HEV light in the 380-500 nm range, extending the protective spectrum beyond conventional UV-only sunscreens
Solution Approach 2:
The patent creates a composite sunscreen formulation combining conventional UV filters with natural antioxidant oils and extracts, achieving dual functionality: UV protection from conventional ingredients and HEV light absorption plus antioxidant protection from the natural oil components
2Object-affected harmful factors
If natural oils and extracts are added to provide HEV light absorption, then protection against oxidative stress is improved, but formulation complexity increases
Solution Approach 1:
The natural oils and extracts serve multiple functions simultaneously: they absorb HEV light, provide antioxidant protection against oxidative stress, and contribute to the cosmetic appeal of the formulation, eliminating the need for separate antioxidant additives
Solution Approach 2:
The natural oil components inherently possess both HEV light absorption and antioxidant properties, allowing the formulation to protect against oxidative stress without requiring additional complex stabilizing agents or preservatives
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 compositions effectively absorb HEV light and reduce oxidative stress, preventing skin damage and promoting skin health by minimizing the generation of reactive oxygen species.
Implementation Method 1
Many new indoor compact fluorescent light (CFL) bulbs and light-emitting diodes (LEDs) can emit light in the 380-500 nm range. These wavelengths of light can cause damage to the skin of a user positioned under or near the CFL and LED bulbs.
Implementation Method 2
the natural oil or extract is present in an effective amount in the composition to reduce reactive oxygen species in the external animal cell by at least 10% after topical application of the composition to the external animal cell
Data Source
AI summary
Compositions and methods of using them for protecting skin, hair and nails against exposure to high energy visible light are described. The compositions can include one or more natural oils or extracts which are effective to absorb the high energy visible light at least to some degree.