Moonstone Stone Stopper Drink Mix, Cranberry Raspberry, Kidney Stone Prevention, Calcium Oxalate Protector, Developed by Urologists to Improve Hydration and Support Kidney Health, 15 Day Supply

Brand: Moonstone
Category: Cranberry
Recorded price: $36.95; 25 Aug 2026
Price per serving: $2.46

Supplement facts

Serving size: 1 Packet (13.1g)
Servings per container: 15

Ingredient	Amount per serving	% daily value
Calories	15	—
Total Fat	0 mg	0%
Saturated Fat	0 g	0%
Trans Fat	0 g	—
Cholesterol	0 mg	0%
Sodium	140 mg	6%
Total Carbohydrate	10 g	4%
Dietary Fiber	0 g	0%
Total Sugars	0 g	—
Includes 0g Added Sugars	0 g	0%
Protein	0 g	—
Vit D	0 mcg	0%
Calcium	0 mg	0%
Iron	0 mg	0%
Potas	200 mg	4%
Vit B6	3.5 mg	210%
Magnesium	230 mg	50%

Label data transcribed from product photos.

Label data as of 3 Sep 2026

Product score

42.3 / 100Fair

Category average: 60.1 / 100
Average for similar products: 60 / 100

This is a convenient mineral drink mix, but its disclosed nutrients provide only partial support for the claimed calcium-oxalate prevention role because citrate and chemical forms are not identified.

Scoring criteria

Quantity
50 / 100
One assumed packet supplies meaningful magnesium but only 200 mg potassium and no declared citrate, making the disclosed formula clearly partial for its kidney-stone-prevention purpose.
Form
65 / 100
The applicable chemical forms of magnesium, potassium, and vitamin B6 are not identified, so their absorption and tolerability properties remain unresolved.
Convenience
100 / 100
Directions are not supplied, so one 13.1-gram packet daily is assumed as the labelled serving and confidence is low.
Label accuracy
75 / 100
The listed nutrient amounts are internally consistent, but the absent chemical forms and directions leave important product details unresolved.
Formula balance
75 / 100
The formula combines relevant minerals, but it does not declare citrate or another clearly identified urinary alkalinizing component needed to fully support the stated prevention role.
Purity
75 / 100
The label lists no problematic additives, but it provides no product-specific testing or other evidence supporting a higher purity assessment.
Cofactors
50 / 100
Vitamin B6 is declared at a meaningful amount and may be complementary to the mineral formula, but added clinical benefit for this purpose remains uncertain.