Segmented Hyaluronic Acid for Deep Skin Moisturization
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Solution Overview
Problem
Existing cosmetic preparations using hyaluronic acid struggle to achieve a deep effect in the skin due to the limited penetration of long-chain molecules and insufficient water storage capacity of short-chain molecules, leading to ineffective wrinkle prevention and skin moisturization.
Innovation Solution
Combining long-chain hyaluronic acid (≥1 million daltons) with short-chain hyaluronic acid (≤200,000 daltons) and derivatives, along with phospholipid encapsulation and aescin, to enhance penetration and water retention in deeper skin layers, while maintaining a chemical balance to prevent depolymerization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If long-chain hyaluronic acid is used, then water storage capacity is improved, but penetration depth into the skin deteriorates
Solution Approach 1:
The patent divides hyaluronic acid into multiple molecular weight segments (long-chain ≥1 million daltons for water storage, short-chain ≤200,000 daltons for penetration, and intermediate-chain 200,000-1 million daltons for balanced performance). This segmentation allows each chain length to fulfill its specific function, resolving the contradiction between water storage capacity and penetration depth.
Solution Approach 2:
The patent creates a composite hyaluronic acid formulation combining hyaluronic acid molecules of different molecular weights in specific ratios (at least 20% long-chain, at least 5% short-chain). This composite approach integrates the advantages of different chain lengths, achieving both deep penetration and effective water storage capacity simultaneously.
2Length of moving object
If short-chain hyaluronic acid is used, then penetration depth is improved, but water storage capacity deteriorates
Solution Approach 1:
The patent segments the hyaluronic acid formulation into multiple molecular weight categories, assigning short-chain molecules (≤200,000 daltons) the specific role of deep penetration while long-chain molecules (≥1 million daltons) handle water storage. This functional segmentation resolves the contradiction by distributing responsibilities across different molecular segments.
Solution Approach 2:
The patent formulates a composite hyaluronic acid product combining short-chain, intermediate-chain, and long-chain molecules in optimized ratios. The short-chain component ensures deep penetration, while the long-chain component provides water storage capacity, creating a synergistic effect that resolves the individual limitations of each chain length.
3Ease of operation
If phospholipid encapsulation is used, then penetration ability is improved, but molecular diameter increases causing blockage
Solution Approach 1:
The patent carefully controls the molecular weight parameter of hyaluronic acid (keeping it at most 150,000 daltons for the encapsulated form) to balance penetration ability and prevent blockage. By optimizing this critical parameter, the formulation achieves effective skin penetration while avoiding the blockage problem caused by excessive molecular size.
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
This combination achieves a higher water release in deep skin layers, providing improved skin moisturization and wrinkle prevention, with a noticeable immediate smoothing and long-lasting effect.
Implementation Method 1
Hyaluronic acid can bind many times its own molecular weight in water and therefore forms an important moisture reservoir in the skin
Implementation Method 2
encapsulate active ingredients in phospholipid membranes so that they can more easily penetrate through barriers
Implementation Method 3
the hyaluronic acid can also be substituted with at least one silane group. This functional group forms disulfide bridges very easily, which contribute to the stereoisomeric stabilization of the hyaluronic acid derivative
Data Source
AI summary
A combination of active ingredients for cosmetic preparations contains hyaluronic acid or at least one of its derivatives. At least 10% by weight is used in long-chain form with a molecular weight of at least 1,000,000 Daltons. At least 2% by weight is used in short-chain form with a molecular weight of no more than 200,000 Daltons.