NaturesPlus Ultra II Daily Sustained Release supplement bottle
NaturesPlus

Ultra II Daily Sustained Release

What We Researched
26 active ingredients analyzed · 40 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026
84
Product Score Good
59
Brand Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as Beta-Carotene) 7500 mcg RAE 833%
Vitamin C (as Ascorbic Acid) 100 mg 111%
Vitamin D3 (as Cholecalciferol) 25 mcg 125%
Vitamin E (as D-Alpha-Tocopheryl Succinate) 67 mg 447%
Thiamine (as Thiamine Hydrochloride, Vitamin B1) 100 mg 8333%
Riboflavin (as Vitamin B2) 100 mg 7692%
Niacin (as Niacinamide) 100 mg NE 625%
Vitamin B6 (as Pyridoxine Hydrochloride) 100 mg 5882%
Folate (as Calcium L-5-Methyltetrahydrofolate) 667 mcg DFE 167%
Vitamin B12 (as Methylcobalamin) 100 mcg 4167%
Biotin 100 mcg 333%
Pantothenic Acid (as Calcium Pantothenate) 100 mg 2000%
Choline (as Choline Bitartrate) 42 mg 8%
Calcium (as Calcium Amino Acid Chelate) 40 mg 3%
Iron (as Iron Amino Acid Chelate) 25 mg 139%
Iodine (as Kelp, Potassium Iodide) 150 mcg 100%
Magnesium (as Magnesium Amino Acid Chelate) 20 mg 5%
Zinc (as Zinc Amino Acid Chelate) 20 mg 182%
Selenium (as Amino Acid Complex) 10 mcg 18%
Manganese (as Manganese Amino Acid Chelate) 6.1 mg 265%
Para-Aminobenzoic Acid 100 mg
Inositol 100 mg
Rutin (as Sophora japonica) 25 mg
Bioflavonoid Complex (as Citrus sinensis) 25 mg
Betaine Hydrochloride 25 mg
Hesperidin Complex (as Citrus sinensis) 5 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin A (as Beta-Carotene) Fair
  • Vitamin C (as Ascorbic Acid) Fair
  • Vitamin D3 (as Cholecalciferol) Good
  • Vitamin E (as D-Alpha-Tocopheryl Succinate) Good
  • Thiamine (as Thiamine Hydrochloride, Vitamin B1) Fair
  • Riboflavin (as Vitamin B2) Good
  • Niacin (as Niacinamide) Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Folate (as Calcium L-5-Methyltetrahydrofolate) Good
  • Vitamin B12 (as Methylcobalamin) Good
  • Biotin Good
  • Pantothenic Acid (as Calcium Pantothenate) Good
  • Choline (as Choline Bitartrate) Poor
  • Calcium (as Calcium Amino Acid Chelate) Good
  • Iron (as Iron Amino Acid Chelate) Fair
  • Iodine (as Kelp, Potassium Iodide) Good
  • Magnesium (as Magnesium Amino Acid Chelate) Good
  • Zinc (as Zinc Amino Acid Chelate) Fair
  • Selenium (as Amino Acid Complex) Good
  • Manganese (as Manganese Amino Acid Chelate) Good
  • Para-Aminobenzoic Acid Good
  • Inositol Good
  • Rutin (as Sophora japonica) Fair
  • Bioflavonoid Complex (as Citrus sinensis) Fair
  • Betaine Hydrochloride Good
  • Hesperidin Complex (as Citrus sinensis) Good
Other Ingredients Excellent

Fillers & Additives

  • Potassium Gluconate
  • Stearic Acid
  • Ferrous Fumarate Low
  • Microcrystalline Cellulose
  • Dicalcium Phosphate
  • Zinc Sulfate
  • Manganese Gluconate
  • Calcium Carbonate
  • Hydroxypropyl Methylcellulose
  • Magnesium Oxide
  • Silica
  • Magnesium Stearate
  • Zinc Gluconate
  • Rose Hip
  • Potassium Amino Acid Complex
  • Papaya
  • isolated Soy Protein
  • Ferrous Gluconate
  • Bromelain
  • Parsley
  • Green Cabbage
  • Watercress
  • Acerola Cherry
  • Icelandic Kelp
  • Brown Rice
  • Date
  • Papaya
  • Chlorella
  • Spirulina
  • Black Currant
  • Garlic
  • Apple Pectin
  • Carrot
  • Sunflower Seed Oil
  • Broccoli
  • Spinach
  • Fig
  • Beet Greens
  • Lecithin
  • Pharmaceutical Glaze
Efficacy Good

Dosage Analysis

  • Vitamin A (as Beta-Carotene) 7500 mcg RAE High
  • Vitamin C (as Ascorbic Acid) 100 mg Effective
  • Vitamin D3 (as Cholecalciferol) 25 mcg Effective
  • Vitamin E (as D-Alpha-Tocopheryl Succinate) 67 mg Effective
  • Thiamine (as Thiamine Hydrochloride, Vitamin B1) 100 mg Effective
  • Riboflavin (as Vitamin B2) 100 mg Effective
  • Niacin (as Niacinamide) 100 mg NE High
  • Vitamin B6 (as Pyridoxine Hydrochloride) 100 mg Effective
  • Folate (as Calcium L-5-Methyltetrahydrofolate) 667 mcg DFE Effective
  • Vitamin B12 (as Methylcobalamin) 100 mcg Effective
  • Biotin 100 mcg Effective
  • Pantothenic Acid (as Calcium Pantothenate) 100 mg Effective
  • Choline (as Choline Bitartrate) 42 mg Under-dosed
  • Calcium (as Calcium Amino Acid Chelate) 40 mg Under-dosed
  • Iron (as Iron Amino Acid Chelate) 25 mg Effective
  • Iodine (as Kelp, Potassium Iodide) 150 mcg Effective
  • Magnesium (as Magnesium Amino Acid Chelate) 20 mg Under-dosed
  • Zinc (as Zinc Amino Acid Chelate) 20 mg Effective
  • Selenium (as Amino Acid Complex) 10 mcg Under-dosed
  • Manganese (as Manganese Amino Acid Chelate) 6.1 mg High
  • Para-Aminobenzoic Acid 100 mg Under-dosed
  • Inositol 100 mg Under-dosed
  • Rutin (as Sophora japonica) 25 mg Under-dosed
  • Betaine Hydrochloride 25 mg Under-dosed
  • Hesperidin Complex (as Citrus sinensis) 5 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (as Beta-Carotene) 7500 mcg RAE 833%
Vitamin C (as Ascorbic Acid) 100 mg 111%
Vitamin D3 (as Cholecalciferol) 25 mcg 125%
Vitamin E (as D-Alpha-Tocopheryl Succinate) 67 mg 447%
Thiamine (as Thiamine Hydrochloride, Vitamin B1) 100 mg 8333%
Riboflavin (as Vitamin B2) 100 mg 7692%
Niacin (as Niacinamide) 100 mg NE 625%
Vitamin B6 (as Pyridoxine Hydrochloride) 100 mg 5882%
Folate (as Calcium L-5-Methyltetrahydrofolate) 667 mcg DFE 167%
Vitamin B12 (as Methylcobalamin) 100 mcg 4167%
Biotin 100 mcg 333%
Pantothenic Acid (as Calcium Pantothenate) 100 mg 2000%
Choline (as Choline Bitartrate) 42 mg 8%
Calcium (as Calcium Amino Acid Chelate) 40 mg 3%
Iron (as Iron Amino Acid Chelate) 25 mg 139%
Iodine (as Kelp, Potassium Iodide) 150 mcg 100%
Magnesium (as Magnesium Amino Acid Chelate) 20 mg 5%
Zinc (as Zinc Amino Acid Chelate) 20 mg 182%
Selenium (as Amino Acid Complex) 10 mcg 18%
Manganese (as Manganese Amino Acid Chelate) 6.1 mg 265%
Para-Aminobenzoic Acid 100 mg
Inositol 100 mg
Rutin (as Sophora japonica) 25 mg
Bioflavonoid Complex (as Citrus sinensis) 25 mg
Betaine Hydrochloride 25 mg
Hesperidin Complex (as Citrus sinensis) 5 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Potassium Gluconate Unknown
Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Ferrous Fumarate Caution

It is used to supplement iron intake.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Zinc Sulfate Generally_safe

It is used to supplement zinc intake.

Manganese Gluconate Generally_safe

It is used as a source of manganese.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Zinc Gluconate Safe

It is used as a source of zinc.

Rose Hip Unknown
Potassium Amino Acid Complex Unknown
Papaya Safe

It may be included for its digestive enzymes or nutritional content.

isolated Soy Protein Unknown
Ferrous Gluconate Unknown
Bromelain Generally_safe
Parsley Safe

It may be included for its nutritional content or as a flavoring agent.

Green Cabbage Unknown
Watercress Generally_safe

It is included for its nutritional benefits.

Acerola Cherry Unknown
Icelandic Kelp Unknown
Brown Rice Generally_safe

It is used to add bulk to the supplement.

Date Unknown
Papaya Safe

It may be included for its digestive enzymes or nutritional content.

Chlorella Unknown
Spirulina Generally_safe

It is used to impart a blue or green color.

Black Currant Unknown
Garlic Unknown
Apple Pectin Safe

It is used as a thickening agent or gelling agent.

Carrot Safe

It is used as a source of nutrients or color.

Sunflower Seed Oil Generally_safe
Broccoli Safe

It may be included as a source of nutrients or as a filler.

Spinach Safe

It is used as a filler.

Fig Unknown
Beet Greens Unknown
Lecithin Safe

It is used as an emulsifier to help mix oil and water-based ingredients.

Pharmaceutical Glaze Generally_safe

It is used to coat tablets or capsules for easier swallowing or controlled release.

Price Comparison

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NaturesPlus

Founded 1972 · Melville, New York, United States · 420 products · naturesplus.com

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Claimed

Violation History

1 incident
Recall Keto Living Sugar Control Capsules2022-05-06Source
Related Supplements
Frequently Asked Questions
Is NaturesPlus Ultra II Daily Sustained Release a good supplement?

NaturesPlus Ultra II Daily Sustained Release received a product quality score of 84/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 26 active ingredients with 60 servings per container. Of the 40 inactive ingredients, 16 are rated safe and 1 are flagged for review. The manufacturer, NaturesPlus, holds a brand trust score of 59/100.

What are the ingredients in NaturesPlus Ultra II Daily Sustained Release?

NaturesPlus Ultra II Daily Sustained Release contains 26 active ingredients: Vitamin A (as Beta-Carotene) (7500 mcg RAE), Vitamin C (as Ascorbic Acid) (100 mg), Vitamin D3 (as Cholecalciferol) (25 mcg), Vitamin E (as D-Alpha-Tocopheryl Succinate) (67 mg), Thiamine (as Thiamine Hydrochloride, Vitamin B1) (100 mg), Riboflavin (as Vitamin B2) (100 mg), and 20 more. Notable high-dose ingredients include Vitamin A at 833% DV, Vitamin E at 447% DV, Thiamine at 8333% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NaturesPlus Ultra II Daily Sustained Release safe to take?

NaturesPlus Ultra II Daily Sustained Release has been analyzed for ingredient safety across all its components. Of 40 inactive ingredients, 16 are rated safe. 1 ingredient is flagged for review: Ferrous Fumarate. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NaturesPlus a trustworthy supplement brand?

NaturesPlus receives a brand trust score of 59/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Melville, New York, United States, the company offers 420 products in their lineup. Note: NaturesPlus has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.