The Sisu Ester-C Supreme Immune Support is a dietary supplement designed to support a healthy immune system and the maintenance of good health. This blend uses Ester-C® calcium ascorbate, a patented form of vitamin C buffered with calcium, combined with bioflavonoids and immune-supporting polysaccharides to help your immune cells function effectively throughout the day. It’s formulated with citrus-free ingredients for those avoiding citrus and is easy to take as a vegetarian capsule suitable for vegans.
Key benefits
- Calcium ascorbate provides part of your daily calcium requirement while delivering vitamin C in a gentler, less acidic form.
- Active vitamin C metabolites including L-threonate improve cellular absorption and retention for sustained support.
- Supports immune cells by maintaining vitamin C availability in white blood cells for up to 24 hours in the immune system.
- Enhanced with quercetin and berry-derived bioflavonoids to aid absorption and provide anti-inflammatory properties.
- Arabinogalactan adds an extra polysaccharide support during stressful times and cold/flu season.
Ingredients and how they help
- Vitamin C (Calcium Ascorbate) — 600 mg per capsule, supplied by the Ester-C® brand calcium ascorbate; a buffered form of vitamin C that is less acidic on the stomach and supports immune function through sustained availability in immune cells.
- Arabinogalactan (Larix occidentalis) bark — 100 mg per capsule; a polysaccharide that offers additional immune support during stressful periods.
- Quercetin (fruit) — 50 mg per capsule; a bioflavonoid with antioxidant, anti-inflammatory, and antihistamine properties that can aid vitamin C absorption and activity.
- Multianthocyanidins (berry/fruit*) — 50 mg per capsule; includes bilberry, cranberry, black currant, grape components to support absorption and overall antioxidant activity.
- Non-medicinal: Magnesium stearate (vegetable). Capsule shell: Hypromellose.
- All ingredients are citrus-free and suitable for vegetarians/vegans; manufactured under good manufacturing practices for purity and potency.
Usage, safety, and who this is for
- Dosage: adults take 1-2 capsules daily or as directed by a health care practitioner.
- Form: easy-to-swallow vegetarian capsules that are gluten-free and citrus-free.
- Safety: Follow the included product instructions for dosage. Keep out of reach of children. If pregnant, nursing, or taking medications, consult a health care practitioner before use.
- Best for individuals seeking a vegan-friendly vitamin C supplement with a focus on immune support and calcium as a part of daily intake.
Disclaimer: This product is not intended to diagnose, treat, cure, or prevent any disease. Always read and follow the product label. Consult a healthcare professional if you have any health concerns.
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