Keyora HydraCera 5-in-1

Abstract Keyora HydraCera 5-in-1 integrates five clinically oriented actives - Hyaluronic Acid (400 kDa, 240 mg), fish bulbus arteriosus-derived Elastin Peptides (100 mg), Ceramide NP (99.5%, 2 mg), Nicotinamide (10 mg), and Vitamin C (200 mg) - to address hydration, barrier integrity, elastic-matrix function, and tone. Medium-MW HA supports oral uptake (paracellular transport), fills dermal ECM spaces, and stimulates endogenous HA/collagen/elastin synthesis. Elastin peptides retaining desmosine/isodesmosine motifs promote elastic-fiber regeneration and firmness, reducing gravity-related laxity. High-purity Ceramide NP, structurally homologous to stratum-corneum lipids, rebuilds intercellular lamellae and lowers TEWL at micro-dose levels. Nicotinamide augments NMF/ceramide synthesis, improves barrier resilience, and modulates melanosome transfer for brighter, more even tone. Vitamin C provides antioxidant defense, supports collagen cross-linking, and complements brightening. Collectively, these ingredients operate as a Structural Hydration Triad (HA + Elastin + Vitamin C) and a Functional Barrier/Brightening Duo (Ceramide NP + Nicotinamide), delivering multi-pathway, low-dose-high-efficiency benefits suited to dry, sensitive, and photo-exposed skin. This formulation exemplifies precision nutria-cosmetics for visible improvements in moisture, elasticity, wrinkle appearance, barrier stability, and radiance.