Hydroxy-substituted Sphingolipids for UV Protection
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Solution Overview
Problem
Current skin-care products are inadequate in preventing signs of aging caused by solar irradiation, particularly due to the lack of effective substances that inhibit UV-induced DNA damage and oxidative stress.
Innovation Solution
Hydroxy-substituted sphingolipids, such as 4-hydroxybutyroyl phytosphingosine and succinoyl phytosphingosine, which are incorporated into cosmetic formulations to provide protective effects against UV-induced DNA damage and oxidative stress, while also acting as thickening agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional skin-care products are used, then basic skin protection is provided, but they are inadequate in preventing signs of aging caused by solar irradiation and UV-induced DNA damage
Solution Approach 1:
The patent applies antioxidant substances that convert the harmful oxidative stress caused by UV radiation into a beneficial protective effect. The antioxidants scavenge free radicals and reactive oxygen species generated by UV exposure, transforming the harmful oxidative environment into a protected state that prevents DNA damage and cellular aging.
Solution Approach 2:
The patent introduces intermediary substances (antioxidants and skin-care agents) that mediate between the harmful UV radiation and the skin cells. These intermediaries absorb or neutralize the harmful effects before they reach the DNA and cellular structures, providing a protective buffer zone.
2Reliability
If hydroxy-substituted sphingolipids are incorporated into cosmetic formulations, then protective effects against UV-induced DNA damage and oxidative stress are provided, but formulation complexity increases
Solution Approach 1:
The patent employs hydroxy-substituted sphingolipids that perform multiple functions simultaneously: they act as antioxidants against oxidative stress, provide UV protection, and serve as skin-care agents. This multi-functionality reduces the need for separate ingredients and simplifies the overall formulation while maintaining comprehensive protection.
Solution Approach 2:
The patent uses composite sphingolipid structures combining hydrophobic and hydrophilic regions, along with multiple functional groups (hydroxyl groups at different positions). These composite molecular structures provide enhanced stability and efficacy while allowing for controlled incorporation into cosmetic formulations through standardized preparation methods.
3Shape
If sphingolipids are used as thickening agents, then skin texture improvement is achieved, but the concentration requirements may limit formulation flexibility
Solution Approach 1:
The patent optimizes the concentration parameters of sphingolipids within specific ranges (0.01-10%, preferably 0.1-5%) to achieve the desired thickening and texture-improving effects. By carefully controlling these parameters and combining with other formulation ingredients, the patent maintains formulation flexibility while achieving visible skin texture improvements.
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
These sphingolipids significantly reduce the formation of reactive oxygen species and DNA damage caused by UV radiation, leading to improved skin protection and visible improvements in skin texture, brightness, and density when used in sun protection formulations.
Implementation Method 1
the ceramide derivatives described hereinbelow are able to achieve the object of the invention and to inhibit the formation of reactive oxygen species (ROS) caused by UV light
Data Source
AI summary
Hydroxy-substituted sphingolipids are useful as constituents in cosmetic formulations. A method for preparing the sphingolipids involves reacting a lysosphingolipid with a hydroxycarboxylic acid or an intramolecular cyclic ester of a hydroxycarboxylic acid. The sphingolipids can be used for therapy or prophylaxis of cell damage, including skin cell damage and cell damage induced by UV radiation.