$21.75 $1.08 per serving
Product analysis
Slow Flow combines herbs with vitamin C, which supports normal immune function and collagen formation. The serving is relatively expensive for its vitamin content and ginger.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality33
Vitamin K1 is a less favorable form choice, while other named forms cannot be compared confidently. Several herbal preparations are unspecified, limiting a fuller quality comparison.
Ingredient Transparency89
Amounts are disclosed for all listed ingredients, and most forms are named. Ginger and two of the other herbs have unspecified preparations, leaving some quality details unclear.
Value For Money20
The serving is expensive for vitamins A, C and K as well as ginger. Calcium cannot be compared reliably, so there is no clear additional value case from that ingredient.
Customer Satisfaction74
Customers generally give positive ratings. A substantial review base provides a broad picture of satisfaction without establishing specific effects.
Product Focus52
Vitamin C provides the clearest support for normal immune function and collagen formation. The many herbs add complexity, while their presence does not establish broader benefits.
- Format
Capsule - Container
- 60 Capsule(s)
- Per serving
- $1.08
- Customer rating
- 4.2 · 2,233 ratings
Goals
Impact
Moderate effect
Vitamin C · 500 mg
Impact
Moderate effect
Vitamin C · 500 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin A (Retinyl Palmitate) | 5000 IU | |
Vitamin C (Calcium Ascorbate) | 500 mg | |
Vitamin K1 (Phytonadione) | 150 mcg | |
Calcium (Calcium Ascorbate) | 55 mg | |
Bioflavonoids (Citrus) | 500 mg | |
Ginger | 375 mg | |
Yarrow | 300 mg | |
Shepherd's Purse | 200 mg | |
Cranesbill | 200 mg | |
Life Root Aerial Parts Extract (Senecio Aureus Aerial Parts Extract) | 150 mg |
Vitamin C (Calcium Ascorbate) · 500 mg OverallScore73
A serving provides 500 mg of vitamin C at a high cost per amount. It uses buffered calcium ascorbate. The amount is clearly stated.
How this ingredient is rated
Active Ingredient Quality & Bioavailability83
Calcium Ascorbate is a buffered mineral form.
Vitamin C Chemical Form & Delivery System
It uses calcium ascorbate.
Gastric Comfort & pH Balance
Calcium Ascorbate is a buffered mineral form.
Dose, Safety & Label Transparency91
The serving provides 500 mg of vitamin C. The amount is stated.
Optimal Dosage Targeting
A serving provides 500 mg of vitamin C.
Purity & Excipient Quality
The Other Ingredients panel has no flagged additives.
Mineral & Source Transparency
The vitamin C and calcium amounts are stated.
Value20
The cost per amount of vitamin C is high.
Price per Gram of Vitamin C
The cost per amount of vitamin C is high.
Vitamin A (Retinyl Palmitate) · 5000 IU OverallScore49
The serving provides 5,000 IU of vitamin A. The cost is high for that amount. Retinyl palmitate is preformed vitamin A.
How this ingredient is rated
Active Ingredient Quality & Bioavailability30
Retinyl palmitate is preformed vitamin A.
Vitamin A Chemical Form & Source
Retinyl palmitate is preformed vitamin A.
Dose, Safety & Label Transparency82
The serving provides 5,000 IU of vitamin A. Retinyl palmitate is named, but its percentage is not stated.
Dosage Efficacy & Safety Thresholds
The serving provides 5,000 IU of vitamin A.
Label Transparency of Specific Forms
Retinyl palmitate is named, but its percentage is not stated.
Value20
The cost is high for the vitamin A amount provided.
Price per 5,000 IU Dose
The cost is high for the vitamin A amount provided.
Ginger · 375 mg OverallScore45
The serving declares 375 mg of ginger. The cost per serving is high. Gingerol or shogaol content is not specified in the available information.
How this ingredient is rated
Composition and Label Disclosure3
Gingerol or shogaol content is not specified in the available information. The ginger plant part and scientific species are not specified in the available information.
Ginger Marker Disclosure
Gingerol or shogaol content is not specified in the available information.
Botanical Source Detail
The ginger plant part and scientific species are not specified in the available information.
Composition and Label Disclosure100
The serving declares 375 mg of ginger. The available additive findings do not identify a flow aid or the flagged additives.
Ginger Amount Disclosure
The serving declares 375 mg of ginger.
Other Ingredients Disclosure
The available additive findings do not identify a flow aid or the flagged additives.
Commercial Price and Usability20
The cost per serving is high.
Selected-Serving Price Comparison
The cost per serving is high.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Depressed immune response to tetanus in children with vitamin A deficiency.
- Impact of a single megadose of vitamin A at delivery on breastmilk of mothers and morbidity of their infants.
- Vitamin A supplementation reduces measles morbidity in young African children: a randomized, placebo-controlled, double-blind trial.
- Vitamin A supplementation enhances specific IgG antibody levels and total lymphocyte numbers while improving morbidity in measles.
- Vitamin A supplementation reduces the monocyte chemoattractant protein-1 intestinal immune response of Mexican children.
- 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.
- Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
- The effect of ginger supplementation on serum C-reactive protein, lipid profile and glycaemia: a systematic review and meta-analysis.
- Ginger supplementation and metabolic health: an umbrella review of meta-analyses of randomized trials.
- Effect of Ginger Supplementation on Proinflammatory Cytokines in Older Patients with Osteoarthritis: Outcomes of a Randomized Controlled Clinical Trial.
- Effects of Ginger Supplementation on Markers of Inflammation and Functional Capacity in Individuals with Mild to Moderate Joint Pain.
- The effect of ginger supplementation on some immunity and inflammation intermediate genes expression in patients with active Rheumatoid Arthritis.
- Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
- The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
- The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
- Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
- Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.