Anhydrous Nail Whitening Composition Using Peroxide Generators
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Solution Overview
Problem
Current nail bleaching products are ineffective in removing discolorations as they are either unstable, require frequent reapplication, have limited durability, and can transfer to clothing, while existing hydrogen peroxide solutions lack adequate contact with the nail and are not durable.
Innovation Solution
A substantially anhydrous cosmetic composition containing 2-15% hydrogen peroxide generator, a film-forming polymer, and a cosmetically acceptable volatile solvent, with less than 10% water by weight, which slowly releases hydrogen peroxide upon contact with the nail to effectively bleach discolorations without transferring to clothing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrogen peroxide solution is used for nail bleaching, then discoloration removal is achieved, but the composition is unstable and requires pH lowering
Solution Approach 1:
The patent changes the chemical form of hydrogen peroxide from a direct solution to a generator system (sodium percarbonate or carbamide peroxide) that releases hydrogen peroxide in situ. This parameter change eliminates the need for pH adjustment while maintaining stability, as the peroxide generators are stable solids that only activate upon contact with nail moisture.
2Reliability
If water-based hydrogen peroxide composition is used, then bleaching action is achieved, but adequate contact with nail is lacking
Solution Approach 1:
The patent changes the physical state from a water-based solution to an anhydrous powder composition. This allows the product to remain stable for storage while releasing hydrogen peroxide upon contact with the nail's natural moisture, ensuring adequate contact without requiring water as a solvent.
Solution Approach 2:
The composition utilizes the nail's natural moisture to activate the peroxide generator, eliminating the need for additional water or pH adjustment. The system is self-activating upon application, improving both contact and ease of use.
3Ease of manufacture
If nail polish with violet tinge is applied, then discoloration is masked, but durability is limited and frequent reapplication is required
Solution Approach 1:
Instead of masking the discoloration with cosmetic colorants, the patent converts the discoloration problem into a bleaching opportunity by using peroxide generators that actively remove the stain through oxidation, providing a permanent rather than temporary solution.
4Reliability
If hydrogen peroxide composition is applied to nail surface, then bleaching occurs, but transfer to clothing may occur
Solution Approach 1:
The patent changes the formulation from a liquid solution to an anhydrous powder system that releases hydrogen peroxide in situ. This eliminates free liquid peroxide that could transfer to clothing, while maintaining the bleaching action through controlled release upon contact with nail moisture.
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 a stable, long-lasting, and non-transferable bleaching solution that effectively reduces nail discolorations, as demonstrated by a significant decrease in yellowness index over two weeks of use.
Implementation Method 1
containing at least one hydrogen peroxide generator in an amount of from 2 to 15% by weight to bleach said nails
Implementation Method 2
These remedies use oxidizing agents, such as hydrogen peroxide
Data Source
AI summary
A cosmetic composition for bleaching discolored nails containing at least one hydrogen peroxide generator in an amount sufficient to perform bleaching of discolored nails, at least one film forming polymer and at least one cosmetically acceptable volatile solvent. Also disclosed is a method of bleaching discolored nails involving applying onto said nails the cosmetic composition of the present invention.