Skin-Improving Peptide Composition for Penetration and Stability
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Solution Overview
Problem
Existing peptides for improving skin condition face challenges such as poor tissue penetration and short half-life, limiting their effectiveness in promoting collagen biosynthesis, fibroblast proliferation, and antioxidant activity.
Innovation Solution
A peptide with the amino acid sequence of SEQ ID NO: 1, optionally modified with protecting groups, is developed to enhance skin penetration and stability, promoting fibroblast proliferation, increasing extracellular matrix synthesis, and enhancing antioxidant capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing peptides are used to improve skin condition, then collagen biosynthesis and fibroblast proliferation are promoted, but tissue penetration is poor and half-life is short
Solution Approach 1:
The patent modifies the peptide sequence parameters by incorporating specific amino acid residues (Serine at position 1, Glycine at position 2, Alanine at position 3, Valine at position 4) to optimize both biological activity and pharmacokinetic properties. This parameter optimization enables the peptide to maintain stability and activity while improving tissue penetration and extending half-life.
Solution Approach 2:
The patent creates a composite peptide structure combining multiple functional domains: an antioxidant peptide segment (SEQ ID NO: 1) and a collagen-stimulating peptide segment (SEQ ID NO: 2). This composite structure integrates multiple functions into a single molecule, simultaneously achieving antioxidant activity, fibroblast proliferation promotion, and extended half-life through the synergistic interaction of different peptide segments.
2Reliability
If existing peptides are used to improve skin condition, then fibroblast proliferation is promoted, but tissue penetration is poor
Solution Approach 1:
The patent applies local quality modification by introducing specific amino acid residues at critical positions in the peptide sequence. The N-terminus contains hydrophilic residues (Serine, Glycine) that enhance cell membrane penetration, while the C-terminus contains hydrophobic residues (Alanine, Valine) that stabilize the peptide structure and extend half-life. This localized optimization of peptide properties at different regions achieves both improved penetration and maintained biological activity.
3Reliability
If collagen synthesis is promoted, then skin elasticity and wrinkle reduction are improved, but the complexity of peptide structure increases
Solution Approach 1:
The patent segments the peptide into distinct functional domains: an antioxidant peptide segment (SEQ ID NO: 1 with 20 amino acids) and a collagen-stimulating peptide segment (SEQ ID NO: 2 with 15 amino acids). This segmentation allows each domain to perform its specific function efficiently while maintaining overall structural simplicity. The modular design facilitates easier synthesis and purification compared to creating entirely new peptide sequences.
Data Source
AI summary
The present application relates to a peptide having the activity of improving the skin condition and use thereof, and provides a peptide consisting of the amino acid sequence of SEQ ID NO: 1 and a cosmetic composition for improving the skin condition including, as an active ingredient, the peptide consisting of the amino acid sequence of SEQ ID NO: 1.