Systemic Formulas DV3 BioNutriment Vitamin D3 Plus Immune Support

Brand: Systemic Formulas
Category: Vitamin D
Recorded price: $22.98; 7 Sep 2026

Supplement facts

Serving size: 1 Capsule(s)

Ingredient	Amount per serving	% daily value
Vitamin D3	3000 IU	750%
Calcium	39 mg	4%
Magnesium	60 mg	17%
Vitamin A	2500 IU	50%
Zinc	3 mg	20%
Potassium	3 mg	1%
Vitamin K2	80 mcg	100%
Proprietary Blend	90 mg	—

Other ingredients

Gelatin
Stearic Acid
Mg Stearate

Directions on the label

DIRECTIONS FOR NUTRITIONAL USE: 1-2 capsules once per day for 1-6 weeks, or as directed. Then take 1 every other day as needed for maintenance. Increase the amount of liquids you drink each day while taking this product.

Label data from the Dietary Supplement Label Database.

Label data as of 10 Sep 2026

Product score

89.5 / 100Excellent

Category average: 85.1 / 100

A practical D3 dose with a meaningful declared amount of supporting K2, though the 90 mg proprietary blend is not broken out by ingredient amount.

Scoring criteria

Quantity
100 / 100
One capsule supplies 3,000 IU of D3, a reasonable supplemental amount for the stated general role; the label’s lower alternate-day maintenance routine is also within a practical maintenance range.
Form
75 / 100
The identified form is conventional cholecalciferol (D3), with no established relevant absorption or tolerability advantage or limitation in this capsule.
Convenience
100 / 100
Assessing the lowest labelled active-phase routine of one capsule once daily; it supplies 3,000 IU D3, and the later every-other-day maintenance direction is also stated on the label.
Label accuracy
75 / 100
The principal D3 and K2 amounts are stated, but the 90 mg proprietary blend is not broken out by ingredient or amount, leaving its composition unresolved.
Purity
75 / 100
No product-specific purity testing or contaminant evidence is supplied, so ordinary quality remains unresolved.
Cofactors
100 / 100
The separately quantified 80 mcg of K2 is a meaningful supporting ingredient paired with principal D3, meriting the stated complementary-formulation preference.