SiSU
Ester-C 600 mg
87/100
SUPPIE SCORE
72/100
EFFICACY
High
SAFETY
96/100
CLEANLINESS
What Does Ester-C 600 mg Do?
SiSU Ester-C 600 mg delivers a buffered vitamin C form with added citrus bioflavonoids that shows good retention in white blood cells and gentler GI profile than standard ascorbic acid, making it a solid daily immune and antioxidant choice at this dosage.
How does Ester-C compare to regular vitamin C for daily immune support?
What is the best way to take this for maximum absorption?
Is this suitable during cold and flu season or times of stress?
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What Are the Benefits of Ester-C 600 mg?
Based on proven scientific research
Immune FunctionStrong
Antioxidant SupportModerate
Tissue Repair & CollagenModerate
Gentle on StomachStrong
Good For:
What Are the Side Effects of SiSU Ester-C 600 mg?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Vitamin C from calcium ascorbate at 600 mg per capsule is well-tolerated with low risk of GI upset compared to ascorbic acid due to neutral pH.
•Citrus bioflavonoids at 100 mg are generally recognized as safe with no established upper limit.
•Calcium contribution of 72 mg per capsule poses negligible risk of hypercalcemia at recommended 1-2 capsules daily.
•No gluten, dairy, soy, or animal-derived ingredients; suitable for vegan diets.
•Store in airtight container away from heat and light; do not use if seal is broken.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Magnesium stearate (vegetable)
Low RiskHypromellose
Low RiskWhat Are the Ingredients in SiSU Ester-C 600 mg?
Vitamin C (calcium ascorbate from Ester-C®)
600 mg
Calcium (calcium ascorbate)
72 mg
Citrus bioflavonoids (from lemon, orange, mandarin orange, grapefruit)
100 mg
magnesium stearate (vegetable)
hypromellose
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Dosage & Bioavailability
How the active doses and forms in Ester-C 600 mg compare to the research.
•Vitamin C (calcium ascorbate from Ester-C) — 600 mg per capsule; 1-2 capsules daily provides 600-1200 mg, within common supplemental ranges of 500-2000 mg.
•Vitamin C (calcium ascorbate from Ester-C) — patented form with vitamin C metabolites; studies show higher leukocyte retention up to 24 hours versus regular ascorbic acid.
Frequently Asked Questions
Common questions about SiSU Ester-C 600 mg