Regenerative Skin Remodeling by a Dual Hyaluronic Acid Hybrid Complex in Multimodal Preclinical Models

Area of Science:

• Dermatology
• Biochemistry
• Cosmetic Science

Background:

• Skin aging involves extracellular matrix degradation, inflammation, and pigmentation issues.
• Current rejuvenation methods often address only specific aging signs.
• A multimodal approach is needed for comprehensive skin renewal.

Purpose of the Study:

• To evaluate the skin rejuvenation potential of a dual hyaluronic acid compound (DHC).
• To assess DHC's effects on fibroblast function, melanogenesis, and inflammation.
• To investigate DHC's efficacy in a preclinical photoaging model.

Main Methods:

• In vitro studies with dermal fibroblasts, melanoma cells, and macrophages.
• Assays for cell viability, collagen/elastin production, antioxidant activity, and wound healing.
• Gene expression analysis for melanogenesis markers (MITF, TYR, TRP1).
• Measurement of inflammatory markers (NO, TNF-α, IL-1β, IL-6, CCL1).
• UVB-induced photoaging rat model to assess wrinkle depth, elasticity, and skin hydration.

Main Results:

• DHC boosted fibroblast viability, collagen/elastin synthesis, and wound healing.
• DHC reduced senescence markers and suppressed melanogenesis via key gene downregulation.
• Significant anti-inflammatory effects observed, reducing NO and pro-inflammatory cytokines.
• In vivo, DHC improved skin elasticity, hydration, barrier integrity, and reduced wrinkles and melanin.
• DHC's preclinical performance was comparable or superior to existing treatments.

Conclusions:

• DHC demonstrates broad preclinical bioactivity for skin rejuvenation.
• Its multimodal effects include biostimulatory, antioxidant, anti-inflammatory, and pigmentation modulation.
• Further research is needed to confirm clinical relevance and translational potential.