Polyglutamic Acid Hair Serum for Lightweight Conditioning
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Solution Overview
Problem
Existing hair care products fail to provide long-lasting softness, moisturization, and conditioning benefits while maintaining a lightweight and non-greasy texture, and they often disrupt the natural pH balance of the hair and scalp.
Innovation Solution
A hair treatment serum containing γ-polyglutamic acid, hydrocarbon oils, and polyacrylic acid thickening agents, formulated as an oil-in-water emulsion, which forms flexible and durable films on the hair to provide moisture retention, protect against heat and environmental damage, and control frizz, while maintaining a pH close to the natural hair and scalp pH.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional conditioning products are used to provide moisturization and softness, then hair conditioning benefits are improved, but the hair becomes heavy, greasy, or sticky
Solution Approach 1:
The patent changes the chemical parameters of conditioning agents by using polyglutamic acid with specific molecular weight ranges (5,000-500,000 Da) and controlled hydrophobicity (log P values), which fundamentally alters how the conditioner interacts with hair - providing moisture without the heavy, greasy feel of traditional products
Solution Approach 2:
The invention combines polyglutamic acid with specific oil phases and optional cationic polymers to create a composite conditioning system that leverages the moisture-binding properties of polyglutamic acid while using minimal oil content (0.1-5%) to achieve conditioning without heaviness
2Productivity
If rinse-out conditioners are used to condition hair quickly, then conditioning is achieved, but the effects are temporary and require frequent application
Solution Approach 1:
The patent applies preliminary action by having the polyglutamic acid penetrate and bind to the hair cuticle during the brief rinse-out period, creating a pre-established moisture reservoir that continues to function after rinsing, thereby extending conditioning effects beyond the application time
Solution Approach 2:
The polyglutamic acid forms a continuous conditioning film on the hair that maintains moisture over time, ensuring the useful action of conditioning continues from the initial application through multiple wash cycles rather than being interrupted or requiring reapplication
3Duration of action of stationary object
If leave-in conditioners are used to provide long-lasting moisturization, then conditioning duration is improved, but the hair texture becomes heavy and greasy
Solution Approach 1:
The patent changes the physical parameters of leave-in conditioning by controlling the molecular weight and hydrophobicity of polyglutamic acid, which allows the product to remain on hair without becoming heavy or greasy while still providing extended moisturization benefits
4Reliability
If deep conditioners are used to repair damaged hair, then hair repair is improved, but the application process becomes time-consuming and complex
Solution Approach 1:
The patent extracts the essential repair function from time-consuming deep conditioning routines by concentrating the active polyglutamic acid ingredients into a targeted formulation that delivers repair benefits in a single, brief application rather than requiring prolonged treatment sessions
5Ease of operation
If all-in-one shampoo/conditioner products are used to simplify routine, then ease of operation is improved, but the products cannot effectively both cleanse and condition simultaneously
Solution Approach 1:
The patent applies local quality by designing the polyglutamic acid to perform different functions in different locations - cleansing action at the scalp level and conditioning action on the hair shaft - allowing a single product to effectively both cleanse and condition without compromise
6Reliability
If traditional conditioning agents are used to provide softness, then hair softness is improved, but pH balance is disrupted
Solution Approach 1:
The patent changes the pH parameter of conditioning agents by using polyglutamic acid, a naturally occurring polymer that operates at physiological pH levels, thereby maintaining the acid mantle and preventing the pH disruption caused by traditional synthetic conditioners
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 serum delivers long-lasting softness, moisturization, and conditioning benefits, improving hair elasticity and resilience, preventing split ends, and protecting against damage and breakage, with a lightweight and non-sticky finish.
Implementation Method 1
Upon application to the hair, the serum forms smooth, flexible, and durable films. The films prevent moisture loss, protect against heat and other environmental damage, and control frizz.
Implementation Method 2
the hair treatment serum is fast acting and quickly absorbs deep into the hair fibers
Implementation Method 3
The polyacrylic acid thickener is multifunctional. It adds viscosity, contributes to the stability of the serum
Data Source
AI summary
The instant disclosure is drawn to a hair treatment serum that provides softness, moisturization, and additional conditioning benefits to hair. The hair treatment serum includes: (a) a polyglutamic acid, a salt thereof, or a combination thereof; (b) one or more oils, wherein at least one of the one or more oils is a hydrocarbon oil; (c) one or more thickening agents, wherein at least one of the one or more thickening agents is a polyacrylic acid thickening agent; and (d) water. The serum is preferably an oil-in-water emulsion or oil-in-water dispersion. The hair treatment serum is particularly useful in methods for smoothing, hydrating, and conditioning hair.