Supplementation is evolving. Today, it’s not only about efficacy — but also about source transparency, biological alignment, and environmental responsibility. Vitamin D₂ embodies all three.

At ICON DNA, we don’t add vitamin D₂. We grow it — directly into our mushrooms, cultivated under controlled conditions in Northern Europe. Through a scientifically developed method, we encourage our mushrooms to convert ergosterol into vitamin D₂ using natural light — creating a nutrient that is biologically intelligent and naturally synergistic.

What Is Vitamin D₂?

Vitamin D₂ (ergocalciferol) is one of the two main forms of vitamin D. Unlike D₃, which is typically extracted from fish oil or sheep lanolin, D₂ is derived from fungi — including the very mushrooms we cultivate. When exposed to light, mushrooms naturally transform ergosterol into vitamin D₂, mirroring the way human skin synthesizes vitamin D from sunlight.

This conversion is non-invasive, chemical-free, and part of the mushroom’s own evolutionary brilliance. ICON DNA uses a precisely controlled process to enhance this transformation while maintaining full bioactivity.

Why Vitamin D₂ Matters

For those who care about purity, ethics, and long-term health, vitamin D₂ offers distinct advantages:

• Entirely vegan and cruelty-free

• Free from animal inputs or industrial extraction

• Suitable for religious, ethical, and plant-based lifestyles

• Naturally integrated into our functional mushroom matrix

• Aligned with regenerative cultivation practices

D₂ in ICON DNA is not synthetically added. It is inherent to the mushroom itself — part of a complete, living system of nutrients.

Clinically Supported. Regulator Recognized.

Vitamin D₂ is recognized and approved by both the European Food Safety Authority (EFSA) and the U.S. FDA for its contribution to:

• Normal immune function

• Maintenance of healthy bones and teeth

• Normal muscle function

• Efficient calcium absorption and blood calcium regulation

These are official health claims, not marketing language — backed by decades of research and regulatory oversight.

How D₂ Compares to D₃

Although vitamin D₃ has historically been considered more effective at raising serum levels, recent studies indicate that D₂ and D₃ act through distinct yet complementary immune pathways. A 12-week clinical trial revealed that both forms influence immune-related gene expression, albeit through different mechanisms.

D₂ is not a replacement — it is a parallel system, offering unique biological benefits, especially when delivered in its whole-food mushroom matrix.

More Than Bone Health

Vitamin D receptors are found in the brain, gut, and immune cells — revealing D₂’s role beyond skeletal support:

• Cognitive and mood regulation

• Neuromuscular coordination

• Inflammatory balance

• Microbiome–immune signaling

When combined with beta-glucans and antioxidant compounds such as ergothioneine, D₂ becomes part of a multi-systemic formula that supports overall vitality.

A Sustainability Perspective

Animal-derived D₃ requires:

• Livestock farming

• Industrial solvents

• High water and carbon input

D₂ from ICON DNA mushrooms:

• Requires no animals, no chemicals

• Grows using light, not extraction

• Is produced in closed-loop, low-impact environments

• Supports clean-label and regenerative design principles

This makes D₂ the responsible choice for consumers who value planetary health as much as personal health.

In ICON DNA: Function Becomes Form

• Cultivated in our own mushrooms

• Enhanced through a natural light-based process

• Stabilized via low-temperature lyophilization

• Delivered in gastro-resistant Swiss-engineered capsules

• Protected in lead-free crystal packaging

This is not an ingredient we’ve sourced — it’s a nutrient we’ve nurtured.

Why We Champion D₂

• 100% vegan and cruelty-free

• Developed through scientific collaboration

• Integrated, not isolated

• Supported by regulatory approvals and peer-reviewed research

• Ethically aligned with the future of conscious wellness.

The Future Is Not Fortified — It’s Designed

ICON DNA invites a shift in how we nourish ourselves: with purpose, precision, and deep respect for origin.
Vitamin D₂, as grown in our mushrooms, is not simply effective — it’s emblematic of the new standard.

A standard

where function meets philosophy,

and clean science meets timeless design.