$22.39 $0.18 per serving
Product analysis
Reacta C with Black Elderberry supplies vitamin C to support normal immune function and collagen formation when intake falls short. Unnamed blend ingredients make the full combination harder to assess.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality54
The elderberry species and berry preparation are clearly identified, helping distinguish that ingredient. Quality remains uncertain for the other nutrients and the unnamed blend.
Ingredient Transparency73
All listed amounts and most forms are disclosed. The unnamed blend contents leave part of the formula unclear.
Value For Money45
The vitamin C amount offers moderate value. The calcium and elderberry comparisons remain uncertain, limiting a judgment of the full combination.
Customer Satisfaction80
Customer feedback is very positive, though the number of ratings is modest. Satisfaction does not establish added benefits from the vitamin C and elderberry combination.
Product Focus40
Vitamin C provides the clearest nutritional contribution to normal immune and skin functions. Elderberry evidence is limited, and unknown blend contents prevent a complete view of the formula.
- Format
Capsule - Container
- 120 VegCap(s)
- Per serving
- $0.18
- Customer rating
- 4.9 · 361 ratings
Goals
Impact
High effect
Vitamin C · 500 mg
Impact
High effect
Vitamin C · 500 mg
Impact
Moderate effect
Vitamin C · 500 mg
Impact
High effect
Vitamin C · 500 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Reacta-C) | 500 mg | |
Calcium (Reacta-C) | 25 mg | |
Black Elderberry (Sambucus nigra) (berry) extract (Polyphenols) | 200 mg | |
Vitamin C Support Base | 25 mg |
Vitamin C (Reacta-C) · 500 mg OverallScore76
500 mg of vitamin C per serving comes at a moderate cost per gram of vitamin C. It uses Reacta-C, a blend of calcium and strontium ascorbates. The blend proportions and strontium amount are not disclosed.
How this ingredient is rated
Active Ingredient Quality & Bioavailability83
Vitamin C comes from Reacta-C, a blend of calcium and strontium ascorbates. The blend proportions are not disclosed.
Vitamin C Chemical Form & Delivery System
The source is Reacta-C, a blend of calcium and strontium ascorbates.
Gastric Comfort & pH Balance
The mineral ascorbates are buffered, and the product is described as gentle on the stomach.
Dose, Safety & Label Transparency83
The serving provides 500 mg of vitamin C.
Optimal Dosage Targeting
Each serving provides 500 mg of vitamin C.
Purity & Excipient Quality
The other ingredients include standard excipients.
Mineral & Source Transparency
The vitamin C amount and 25 mg calcium are stated, but the strontium amount and blend proportions are not disclosed.
Value50
The estimated cost per gram of vitamin C is moderate; it assigns the full serving price to vitamin C.
Price per Gram of Vitamin C
The estimated cost per gram of vitamin C is moderate; it assigns the full serving price to vitamin C.
European Elder (Polyphenols) · 200 mg OverallScore100
Each serving provides 200 mg of Sambucus nigra Berry Extract. The label names the species and plant part. The cost per serving is available, but value for the elder ingredient is unclear.
How this ingredient is rated
Composition and Label Disclosure100
Sambucus nigra Berry Extract is the named source.
Botanical Identity Detail
Sambucus nigra Berry Extract is the named source.
Composition and Label Disclosure100
The label gives 200 mg of Sambucus nigra Berry Extract.
Actual Preparation Amount Disclosure
The label gives 200 mg of Sambucus nigra Berry Extract.
Commercial Price and Usability
Value for the elder ingredient is unclear.
Alternative products
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Elderberry Supplementation Reduces Cold Duration and Symptoms in Air-Travellers: A Randomized, Double-Blind Placebo-Controlled Clinical Trial.
- COVID-19: Is There Evidence for the Use of Herbal Medicines as Adjuvant Symptomatic Therapy?
- Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
- Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
- Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
- Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
- Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
- Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
- Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
- Nutritional modulation of cataract.
- Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
- Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
- Elderberry for prevention and treatment of viral respiratory illnesses: a systematic review.
- Select Dietary Supplement Ingredients for Preserving and Protecting the Immune System in Healthy Individuals: A Systematic Review.
- Black elderberry (Sambucus nigra) supplementation effectively treats upper respiratory symptoms: A meta-analysis of randomized, controlled clinical trials
- Randomized study of the efficacy and safety of oral elderberry extract in the treatment of influenza A and B virus infections
- Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
- Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
- Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
- New evidence for antioxidant properties of vitamin C.