O COSMEDICS is proud to announce the evolution of one of its best-selling hydration heroes with the launch of the 4D Hyaluronic Serum, an advanced next-generation formulation set to replace the iconic 3D Hyaluronic Serum.
The new 4D Hyaluronic Serum delivers a more sophisticated and comprehensive approach to skin hydration, reinforcing O COSMEDICS’ commitment to clinically driven, performance-led skincare.
The upgraded formula introduces a powerful four-dimensional Hyaluronic Acid complex, combining four scientifically selected forms of Sodium Hyaluronate, each designed to target different layers of the skin.
This advanced system works synergistically to flood the skin with moisture at multiple depths, while helping to lock hydration in, strengthen barrier function and visibly smooth dehydration lines.
The result is instant and long-term hydration that leaves skin plump, supple and radiant.
Multi-Layer Hydration
The 4D Hyaluronic Acid complex includes:
• Ultra-high molecular weight Sodium Hyaluronate Crosspolymer which forms a protective film on the skin surface, helping reduce transepidermal water loss (TEWL) while providing long-lasting hydration and environmental defence. This form is clinically shown to hold up to 5000 times its weight in water.
• High molecular weight Sodium Hyaluronate, which delivers surface-level hydration and supports immediate skin comfort and moisture retention.
• Sodium Acetylated Hyaluronate, which adheres to the skin’s outer layers to help repair and deeply hydrate compromised areas.
• Ultra-low molecular weight Hydrolyzed Sodium Hyaluronate, which penetrates deeper into the skin to restore hydration, improve elasticity, and visibly smooth fine lines and wrinkles from within.
Together, these four forms of Hyaluronic Acid create a complete hydration network that enhances skin smoothness, elasticity and overall barrier resilience.
Designed for all skin types, the 4D Hyaluronic Serum is especially beneficial for dehydrated, dull and compromised skin conditions.
Its lightweight water-gel texture absorbs effortlessly and layers seamlessly within any skincare routine.
The serum can be used morning and evening on clean skin and is suitable for application on the face, eye area, neck and décolletage. It works optimally after water-based serums and before creams or oils, acting as the foundational hydration step in any routine.
A New Generation of Skin Hydration The 4D Hyaluronic Serum represents a significant advancement in hydration innovation for O COSMEDICS, delivering enhanced performance, improved skin barrier support and a more comprehensive multi-level moisture delivery system than ever before.
With this launch, O COSMEDICS continues to lead in cosmedical skincare innovation, setting a new benchmark for hydration-focused formulations.
The 4D Hyaluronic Serum will officially replace the existing 3D Hyaluronic Serum as the brand’s next-generation hydration essential.



