Marine Soluble Native Collagen - Provides intensive moisture-binding and conditioning benefits to improve hydration, suppleness and the appearance of firmness and elasticity.

Micro-Molecular Weight Hyaluronic Acid - Supports moisture retention and works alongside Eltraderm's collagen-hydration system to maintain hydrated, resilient skin.

Vitamin C - Provides antioxidant support against environmental oxidative stress while helping promote a brighter, more even-looking complexion and supporting normal collagen synthesis.

Advanced Hydrating Factors - Replicate components of the skin's Natural Moisturizing Factor (NMF), improving water-binding capacity and helping maintain hydration even in low-humidity conditions.

• 4.5× active blend concentration
• Intensive hydration + moisture retention
• Supports elasticity + resilience
• Helps improve suppleness + smoothness
• Softens the appearance of fine lines
• Provides antioxidant + brightening support
• Ideal for dehydrated, damaged or mature skin
• Useful around professional resurfacing, peels + laser treatments
• Lightweight + fast absorbing
• Fragrance-free + paraben-free

Apply to clean, dry skin before moisturizer.

Dispense approximately one pump and spread a thin layer over the face, eye contour and neck. Allow the serum to settle into the skin for approximately one minute without massaging before applying additional skincare.

If layering multiple serums or gels, use your Eltraderm collagen product first and allow it to set before continuing. Follow with moisturizer and SPF during the day.

Eltraderm specifically recommends evening use or use as directed by a skincare professional.

This is the top of the collagen progression. At 4.5×, I would choose this when we want Eltraderm's most intensive combination of collagen, hydration and antioxidant support - not simply because it's the highest number.

The vitamin C is what separates it from the 4× concentrate. If intensive hydration and age support are the priority, 4× may be enough. If you also want antioxidant and brightening support, that's where 4.5× + C makes sense.

One pump is plenty. This is a concentrated liquid serum, so a thin layer is all you need. Give it a moment to settle before adding the rest of your routine.

This is especially useful when skin is under more stress. Mature, significantly dehydrated or environmentally stressed skin is where I see the strongest reason to move into the concentrate formulas.