C Extra + Quercetin Bioflavonoids 500 mg/500 mg: Advanced Immunity, Powerful Antioxidants, Respiratory Comfort and Vascular Health

C Extra + Quercetin Bioflavonoids, Natural Factors, is a synergistic complex designed to offer complete support for the immune system, antioxidant protection and daily vitality. Each serving provides Vitamin C (ascorbic acid) 500 mg and Quercetin (bioflavonoids) 500 mg, in a balanced 1:1 ratio that maximizes the natural cooperation between vitamin C and plant flavonoids. Vitamin C supports collagen formation, normal immune functioning and cell protection against oxidative stress, while quercetin completes the antioxidant spectrum and helps maintain a balanced immune response, with remarkable benefits for respiratory comfort, vascular health and resistance to environmental factors. The formula is suitable for active lifestyles, busy periods or seasonal changes, when the body requires robust defense and rapid recovery.

Detailed Benefits of C Extra + Quercetin Bioflavonoids

• Strengthening immunity throughout the year

Efficient immunity needs a network of nutrients working together. Vitamin C contributes to normal functioning of the immune system, supporting immune cell activity and synthesis of mediators involved in body defense. Quercetin, a bioflavonoid with a powerful antioxidant profile, supports immune response balance in the face of daily challenges.

✅ Support for immunity in cold season and demanding periods.
✅ Contribution to the body's natural resilience.
✅ Nutritional foundation for a rapid and balanced response.

• Broad-spectrum antioxidant protection

Oxidative stress affects cells in contact with pollution, screens, physical effort or stress. Vitamin C, a water-soluble antioxidant, neutralizes free radicals in the aqueous environment of cells and regenerates other endogenous antioxidants. Quercetin completes this protection through its action on multiple oxidative pathways, resulting in a multi-level antioxidant "safety net".

✅ Advanced defense against free radicals.
✅ Support for daily oxidative "cleansing".
✅ Contribution to maintaining cellular integrity.

• Respiratory comfort and histamine balance

Seasonal changes and environmental factors can influence respiratory comfort. Quercetin is appreciated for its role in supporting histamine balance and mast cell stability, while vitamin C contributes to normal immune system functioning. Together, they can help the body maintain the feeling of free and comfortable airways.

✅ Support for a balanced immune response at respiratory level.
✅ Contribution to sinus and mucous membrane comfort.
✅ Daily routine for periods with airborne challenges.

• Collagen, skin, gums, joints and blood vessels

Vitamin C is a key cofactor in collagen synthesis, supporting the normal structure of skin, gums, cartilage, bones and blood vessels. Quercetin, through its antioxidant action, protects tissues against oxidative degradation. The combination supports tissue elasticity and resistance, maintaining joint comfort and healthy skin appearance.

✅ Supporting collagen production.
✅ Natural care for skin and gums.
✅ Comfort for joints and vascular health.

• Daily energy and recovery after effort

A challenged body needs efficient management of free radicals resulting from intense physical or mental activity. Through its role in energy metabolism and antioxidant protection, vitamin C contributes to fatigue reduction and normal nervous system functioning. Quercetin offers adaptive support in conditions of physical stress, helping with rapid return to well-being.

✅ Contribution to reducing daily fatigue.
✅ Support for faster recovery after effort.
✅ Stable energy for work, learning and sports.

• Cardiovascular health and microcirculation

Endothelial health and microcirculation depend on protection against oxidative stress. Vitamin C helps maintain normal vessel functioning, and quercetin supports vascular relaxation and oxidative balance at the endothelium level. The cumulative effect encourages healthy circulation and daily cardiovascular comfort.

✅ Support for blood vessel elasticity.
✅ Contribution to efficient blood flow.
✅ Antioxidant protection for the cardiovascular system.

• Synergy between vitamin C and bioflavonoids

For decades, vitamin C has been associated with bioflavonoids for a synergistic effect. C Extra + Quercetin offers 500 mg vitamin C + 500 mg quercetin per serving, a combination that capitalizes on their natural cooperation: vitamin C regenerates antioxidants, while quercetin helps extend the "umbrella" of protection at cellular and tissue level.

✅ Optimal 1:1 ratio for complementary action.
✅ Extended antioxidant spectrum compared to vitamin C alone.
✅ Formula that works where the body needs it.

• Support for skin exposed to environmental factors

Pollution, indirect UV radiation and temperature changes can amplify oxidative stress at the skin level. Vitamin C contributes to collagen formation, supporting skin firmness and tone, while quercetin offers an additional antioxidant "shield". The result: better protected and supported skin from within.

✅ Contribution to skin firmness and elasticity.
✅ Antioxidant protection at cellular surface.
✅ Support for a healthy and radiant appearance.

• Rapid replenishment during demanding periods

Periods of stress, intense schedule or seasonal changes can rapidly deplete antioxidant reserves. With 500 mg vitamin C and 500 mg quercetin, the formula helps "fill the antioxidant tank" and balance the body's responses to external factors.

✅ Antioxidant "boost" when you need it most.
✅ Daily maintenance for resilience.
✅ Easy to integrate into personal routine.

• The practical choice for the whole adult family

C Extra + Quercetin Bioflavonoids, Natural Factors, brings together two essential ingredients in a simple and efficient formula, designed for daily use. Whether you're targeting solid immunity, antioxidant protection, respiratory comfort or vascular support, this combination is a trusted partner.

✅ One product, multiple benefits.
✅ Quality and transparency in dosage.
✅ Complete support for an active and healthy lifestyle.

Recommended dose for adults: