Defend

Defend

£24.99

Defend is a high-absorption liposomal vitamin D3 and K2 supplement for men and women seeking immune support, strong bones, and cardiovascular health. Ideal for adults with low sun exposure or those prioritizing bone health, Defend ensures optimal absorption of essential vitamins for daily wellness and long-term health.

60ml liquid dropper
Benefits

• Supports immune function
• Promotes bone strength and density
• Enhances calcium absorption
• Supports cardiovascular health
• Superior absorption with liposomal delivery
How to use

Take 1 capsule daily with food. For optimal health, combine with Foundation multivitamin for overall nutrient support or Omega for anti-inflammatory benefits.
Flavor

Clean, Effective Formulas

No fillers. No unnecessary additives. Just proven ingredients that work.

Mind & Body Support

Every product is designed to boost focus, energy, recovery, and overall wellbeing.

UK-Made Quality

Manufactured in the UK to the highest standards for safety, purity, and trust.
Amino-XR intra-workout BCAA supplement supporting muscle endurance and hydration being poured into a shaker

How it
Works.

Defend combines vitamin D3 and K2 in liposomal form for maximum bioavailability. Vitamin D3 helps the body absorb calcium, while K2 directs calcium to bones and away from arteries, supporting bone mineralization and cardiovascular health.

Scientific
Evidence.

Research shows vitamin D3 supports immune response, bone mineralization, and muscle function. K2 plays a critical role in cardiovascular health and directing calcium to the skeleton. Liposomal delivery enhances absorption and bioavailability.

Frequently Asked Questions
Defend
Why do I need to take Vitamin D3 with Vitamin K2?

Vitamins D3 and K2 work as a team. Vitamin D3 helps your body absorb calcium, while Vitamin K2 directs that calcium into your bones and teeth rather than your arteries. Taking them together prevents arterial calcification and ensures safe, effective bone support.
What is "Liposomal" Vitamin D and why is it better?

Liposomal technology encapsulates the vitamins in tiny fat bubbles (liposomes) that protect them from stomach acid. This allows for direct delivery into the bloodstream and cells, offering significantly higher ab-sorption rates compared to standard tablets or sprays.
What is the best dose of Vitamin D to take in the UK?

In the UK, especially during winter, sunlight is insufficient for Vitamin D production. Our high-strength liquid provides 4000IU per serving, a robust dose recommended by many practitioners to correct deficiency and maintain optimal immune levels during the darker months.
Is this Vitamin D supplement Vegan?

Yes! Unlike most D3 sourced from sheep's wool (lano-lin), our Liposomal D3 + K2 uses a special plant-based D3 derived from algae. This makes it a rare, high-quality Vegan D3 option suitable for plant-based diets.
Can Vitamin D help with low energy and mood?

Absolutely. Low Vitamin D levels are strongly linked to fatigue, low mood, and Seasonal Affective Disorder (SAD). Maintaining healthy levels with a high-absorption supplement supports energy production and mental wellbeing, keeping you revitalised year-round.

Why choose Olli?

 Olli supplements grouped together Random supplement brands

Ingredient Transparency

Fully transparent, minimal, clean ingredients, every dosage clearly labelled

Often uses proprietary blends, artificial fillers, and hidden dosages

Fillers & Additives

No fillers, no artificial additives, no hidden ingredients - just pure, effective nutrition

Many include artificial sweeteners, colors, preservatives, or unnecessary fillers

Growth Hormones / Synthetic Boosters

Completely free from growth hormones or artificial boosters - safe and natural

Some brands add hormones or synthetic growth boosters

Sourcing & Manufacturing

UK-made, GMP & ISO certified, some organic ingredients, lab-tested for quality

Often overseas, imported ingredients, unknown manufacturing standards

Dietary Options

Multiple vegan, dairy-free, and gluten-free formulas to suit different dietary needs

Limited vegan, dairy-free, or allergen-conscious choices

Sustainability & Responsibility

Responsibly sourced ingredients, eco-conscious packaging

Often limited or unverified claims

Trust & Credibility

Proven quality with UK certification, honest labeling, no gimmicks

Many rely on marketing hype

Customer Focus

People-first approach - we care about your results and wellbeing

Marketing-heavy, product-focused

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