Core Active – Hormonal Health & Immunity

Vitamin D3 – 100 µg (4000 IU)

Hormone-like vitamin for testosterone, immunity & mood balance

Vitamin D3 is more than a basic vitamin – it behaves like a pro-hormone, influencing hormones, immunity, muscles and mood. In SURGEX, the 100 µg (4000 IU) dose is designed to help correct low levels quickly and support testosterone, immune strength, bone health and mental wellbeing in men. 

Why Vitamin D3 Matters for Men

Up to 60% of men are deficient in Vitamin D – especially those who work indoors or get limited sunlight. Deficiency has been associated with: 
Reduced testosterone
Low energy and fatigue
Mood dips and brain fog
Weak immune response
Poor muscle performance

KEY BENEFITS

Boosts testosterone naturally
Boosts testosterone naturally
Supports key hormonal pathways and can help improve free and total testosterone in deficient men.
Strengthens immunity
Strengthens immunity
Activates immune cells and supports the body’s defence against infections.
Improves mood & cognitive function
Improves mood & cognitive function
Helps regulate serotonin and other neurotransmitters tied to mood, focus and mental clarity.
Supports muscle strength & recovery
Supports muscle strength & recovery
Contributes to muscle fibre function, reduces inflammation and aids performance and recovery.
Enhances bone density
Enhances bone density
Promotes calcium absorption and helps keep bones strong and resilient.

How Vitamin D3 Works in the Body

01

Activates androgen receptors – supporting hormonal signalling.

02

Supports conversion of cholesterol into testosterone – key for male hormonal health.

03

Boosts immune cell activity – including T-cells and macrophages.

04

Enhances nutrient absorption – especially calcium and other key minerals.

05

Regulates mood-related neurotransmitters – contributing to better mood balance.

Why SURGEX Uses the High-Potency 100 µg Dose

The 100 µg (4000 IU) dose is a clinically validated daily level chosen to:

Correct low Vitamin D levels more rapidly

Provide stronger hormonal and immune support

Sustain energy, mood and performance over time

OTHER INGREDIENTS