Ultimate Immune Defense with C, D, Zinc & Elderberry: Immune System Support, Intensive Antioxidant Protection and Respiratory Comfort – Advanced Formula for the Body's Defense

Ultimate Immune Defense with C, D, Zinc & Elderberry, Swanson is a complex supplement created to support the body during periods of increased immune demand. Each serving provides a concentrated combination of essential nutrients for the body’s natural defenses: vitamin C (1,000 mg as ascorbic acid), vitamin D3 (125 mcg / 5,000 IU as cholecalciferol), zinc (15 mg from zinc picolinate – a form well utilized by the body) and elderberry extract (Sambucus nigra, 100 mg, from fruit). This formula is designed to support optimal immune system function, provide powerful antioxidant protection and help maintain respiratory comfort in the face of environmental factors.

Through the smart combination of vitamins C and D3, zinc and elderberry fruit extract, the supplement acts in multiple directions: it supports immune cells, helps neutralize free radicals, contributes to maintaining mucosal barrier integrity and supports overall vitality. It is a suitable formula for the cold seasons, seasonal changes, or any time the body needs extra support to cope with daily challenges.

 

Detailed benefits of Ultimate Immune Defense with C, D, Zinc & Elderberry, Swanson

 

• Powerful immune system support

Vitamin C, vitamin D3 and zinc are among the best-known nutrients involved in the normal functioning of the immune system.

In this formula:
✅ 1,000 mg vitamin C supports normal immune cell function and helps protect cells against oxidative stress
✅ 125 mcg (5,000 IU) vitamin D3 contributes to the normal functioning of the immune system
✅ Zinc (15 mg from zinc picolinate) supports immune response and cellular barrier integrity

With adequate intake of these nutrients, the body is better supported in its natural defense capacity, both at the level of innate and adaptive immunity.

 

• Intensive antioxidant protection against oxidative stress

Oxidative stress occurs when an excess of free radicals is formed in the body, which can affect cells and tissues.

Vitamin C is one of the most important water-soluble antioxidants, having a role in:
✅ Neutralizing free radicals generated by stress, pollution or intense effort
✅ Protecting cells against oxidative damage
✅ Regenerating other antioxidants in the body

Elderberry extract (100 mg) complements the action of vitamin C through its natural content of flavonoids and anthocyanins, plant compounds with antioxidant roles that support the body’s overall protection against aggressive environmental factors.

 

• Supporting respiratory comfort and mucosal barrier integrity

The respiratory tract is one of the main contact areas with the external environment.

Elderberry (Sambucus nigra) is traditionally used to support:
✅ Comfort in the throat and upper respiratory tract
✅ Overall well-being during the cold season
✅ The physiological function of the body’s defense mechanisms

Vitamin C and zinc also help maintain mucosal integrity, supporting the body’s natural barrier at respiratory and digestive tract level.

 

• Essential role in collagen synthesis and tissue support

Vitamin C is involved in the normal formation of collagen, a structural protein important for:

✅ Skin, blood vessels and connective tissue
✅ Cartilage, bones and teeth
✅ Overall tissue integrity

By supporting collagen synthesis, vitamin C helps maintain tissue structure and strength, which implicitly contributes to the optimal functioning of the body’s physical barrier and its ability to adapt to environmental challenges.

 

• Support for energy metabolism and reduction of tiredness

A challenged body – by stress, effort or environmental factors – needs energy to sustain immune response.

Vitamin C contributes to:
✅ Normal energy-yielding metabolism
✅ Reduction of tiredness and fatigue
✅ Supporting normal psychological function (concentration, mental clarity)

By supporting energy production and vitality, the body can respond more effectively to daily challenges while maintaining optimal immune system function.

 

• Zinc – support for immunity, skin and cellular protection

Zinc is an essential mineral with roles in numerous biological processes:

✅ Contributes to the normal functioning of the immune system
✅ Helps protect cells from oxidative stress
✅ Participates in normal DNA synthesis and cell division
✅ Contributes to maintaining the health of skin, hair and nails

The zinc picolinate form used in this formula is well known for its bioavailability, meaning the body can utilize it efficiently.

 

• Vitamin D3 – support for bones, muscles and immunity

Vitamin D3, in doses of 125 mcg (5,000 IU), plays multiple roles in the body:

✅ Contributes to the normal functioning of the immune system
✅ Supports normal absorption and utilization of calcium and phosphorus
✅ Helps maintain the health of bones and teeth
✅ Participates in normal muscle function

By supporting musculoskeletal structure and immunity, vitamin D3 contributes both to the body’s general defense and to maintaining an optimal level of functioning in everyday activities.

 

• Synergy between nutrients – integrated formula for complete defense

One of the strong points of Ultimate Immune Defense with C, D, Zinc & Elderberry, Swanson is the synergy between the ingredients:

✅ Vitamin C and elderberry support antioxidant protection and respiratory comfort
✅ Vitamin D3 and zinc strengthen immune response and support body structures
✅ Together, these nutrients support immunity, energy, general comfort and the body’s resilience

This integrated approach makes the supplement a valuable ally for supporting the body during demanding periods, seasonal changes or when dietary intake of essential nutrients may be insufficient.

 

• Supporting overall well-being and long-term resilience

By combining immune support, antioxidant protection and energy metabolism support, Ultimate Immune Defense with C, D, Zinc & Elderberry, Swanson helps:

✅ Maintain daily vitality and tone
✅ Support the body’s ability to adapt to everyday stress
✅ Promote a general state of well-being and internal balance

Formulated with nutrients that play essential roles in defending the body, this supplement can be integrated into a lifestyle oriented toward health and prevention, as targeted nutritional support for immunity, respiratory comfort and cellular protection.

 

 

Suggested use

As a dietary supplement, take two capsules per day with food and water.





 

Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 30
	Amount Per Serving	%Daily Value
Vitamin C (as ascorbic acid)	1,000 mg	1,111%
Vitamin D3 (as cholecalciferol)	125 mcg	625%
Zinc (from zinc picolinate)	15 mg	136%
Elderberry Extract (Sambucus nigra) (fruit)	100 mg	*
*Daily Value not established.

 

Other ingredients

Microcrystalline cellulose (plant fiber), gelatin, maltodextrin, magnesium stearate, silica.

 

Warnings

For adults only. Do not take this product if you are pregnant or nursing. Consult your healthcare provider before use if you are taking any prescription medications or have a medical condition, especially hypercalcemia or kidney disorders. This product should be used under the supervision of a healthcare professional for monitoring blood vitamin D levels. Do not exceed the recommended dose. Not intended for use by children.
Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.