Bayer One a Day Women’s 50+ supplement bottle
Bayer

One a Day Women’s 50+

What We Researched
23 active ingredients analyzed · 32 inactive ingredients decoded · Last updated: Mar 2026
53
Product Score Poor

Product Analysis

Transparency Good

Supplement Facts

IngredientAmount% DV
Vitamin A 3500 IU 70%
Vitamin C 30 mcg 10%
Vitamin D3 1000 IU 250%
Vitamin E 30 IU 100%
Vitamin K 20 mcg 25%
Thiamin (B1) 4.5 mg 300%
Riboflavin (B2) 3.4 mg 200%
Niacin 20 mg 100%
Vitamin B6 6 mg 300%
Folic Acid 400 mcg 100%
Vitamin B12 25 mcg 417
Biotin 30 mcg 10%
Pantothenic Acid 15 mg 150%
Calcium 300 mg 30%
Iron 0 mg 0%
Iodine
Magnesium
Zinc
Selenium
Copper
Manganese
Chromium
Molybdenum
Bioavailability Very Good

Absorption Rating

  • Vitamin A Good
  • Vitamin C Fair
  • Vitamin D3 Good
  • Vitamin E Good
  • Vitamin K Good
  • Thiamin (B1) Good
  • Riboflavin (B2) Good
  • Niacin Good
  • Vitamin B6 Fair
  • Folic Acid Fair
  • Vitamin B12 Fair
  • Biotin Good
  • Pantothenic Acid Good
  • Calcium Good
  • Iron Fair
  • Iodine Good
  • Magnesium Good
  • Zinc Fair
  • Selenium Good
  • Copper Fair
  • Manganese Good
  • Chromium Fair
  • Molybdenum Good
Other Ingredients Very Poor

Fillers & Additives

  • Calcium Carbonate
  • Microcrystalline Cellulose
  • Magnesium Oxide
  • Maltodextrin
  • Zinc Oxide
  • DL-Alpha-Tocopheryl Acetate
  • Croscarmellose Sodium
  • Artificial Flavors
  • Beta-Carotene
  • Cholecalciferol
  • Chromium Chloride
  • Cupric Oxide Medium
  • Cyanocobalamin
  • D-Calcium Pantothenate
  • FD&C Yellow #5 (tartrazine) Lake High
  • FD&C Blue #2 Lake High
  • Gelatin
  • Hydroxypropyl Methylcellulose
  • Manganese Sulfate
  • Niacinamide
  • Phytonadione
  • Polyethylene Glycol Low
  • Potassium Iodide
  • Pyridoxine Hydrochloride
  • Riboflavin
  • Silicon Dioxide
  • Sodium Molybdate
  • Sodium Selenate
  • Stearic Acid
  • Thiamine Mononitrate
  • Titanium Dioxide (Color) Medium
  • Vitamin A Acetate
Efficacy Good

Dosage Analysis

  • Vitamin A 3500 IU Under-dosed
  • Vitamin C 30 mcg Under-dosed
  • Vitamin D3 1000 IU Effective
  • Vitamin E 30 IU Effective
  • Vitamin K 20 mcg Under-dosed
  • Thiamin (B1) 4.5 mg Effective
  • Riboflavin (B2) 3.4 mg Effective
  • Niacin 20 mg Effective
  • Vitamin B6 6 mg Effective
  • Folic Acid 400 mcg Effective
  • Vitamin B12 25 mcg Effective
  • Biotin 30 mcg Effective
  • Pantothenic Acid 15 mg Effective
  • Calcium 300 mg Under-dosed
  • Iron 0 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A 3500 IU 70%
Vitamin C 30 mcg 10%
Vitamin D3 1000 IU 250%
Vitamin E 30 IU 100%
Vitamin K 20 mcg 25%
Thiamin (B1) 4.5 mg 300%
Riboflavin (B2) 3.4 mg 200%
Niacin 20 mg 100%
Vitamin B6 6 mg 300%
Folic Acid 400 mcg 100%
Vitamin B12 25 mcg 417
Biotin 30 mcg 10%
Pantothenic Acid 15 mg 150%
Calcium 300 mg 30%
Iron 0 mg 0%
Iodine
Magnesium
Zinc
Selenium
Copper
Manganese
Chromium
Molybdenum

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Microcrystalline Cellulose Safe

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

Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Zinc Oxide Generally_safe

It is used as a source of zinc.

DL-Alpha-Tocopheryl Acetate Generally_safe

It is used as a source of vitamin E and as an antioxidant.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Artificial Flavors Generally_safe

Added to improve taste.

Beta-Carotene Safe

Provides natural color and additional nutritional value.

Cholecalciferol Safe

It is used to supplement vitamin D levels.

Chromium Chloride Generally_safe

It is added to supplements to provide chromium, an essential trace mineral.

Cupric Oxide Caution

It is used as a source of copper, an essential mineral.

Cyanocobalamin Safe

It is used as a source of vitamin B12.

D-Calcium Pantothenate Safe

It is added to supplements as a source of vitamin B5.

FD&C Yellow #5 (tartrazine) Lake Unknown
FD&C Blue #2 Lake Unknown
Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Manganese Sulfate Generally_safe

It provides a source of manganese.

Niacinamide Safe

It is included for its potential health benefits.

Phytonadione Unknown
Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Potassium Iodide Generally_safe

It provides iodine, an essential mineral.

Pyridoxine Hydrochloride Safe

It is used as a source of vitamin B6.

Riboflavin Safe

It is used as a source of vitamin B2.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Sodium Molybdate Generally_safe

It is used to supplement molybdenum intake.

Sodium Selenate Generally_safe

It is used as a source of selenium.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Thiamine Mononitrate Safe

It is used as a source of vitamin B1.

Titanium Dioxide (Color) Caution

It is used to improve the appearance of the supplement.

Vitamin A Acetate Generally_safe

It is added to supplements as a source of vitamin A.

Brand Trust Report
Bayer

Founded 1863 · Leverkusen, North Rhine-Westphalia, Germany · 1 products · bayer.com

Transparency

2 claims
In House Testing — Claimed

Violation History

5 incidents
Lawsuit Misrepresenting the serving size of 'One A Day' gummy vitamins.2025Source
Lawsuit Unsupported claims of 'heart health,' 'immunity support,' and 'energy' benefits for One A Day vitamins.2017Source
Lawsuit False claims about Philip's Colon Health.2015Source
Prop 65 Misleading claims regarding selenium and prostate cancer risk reduction.2010-10-26Source
Fda Warning Marketing of combination drug/dietary supplement products (Bayer Women's Low Dose Aspirin + Calcium and Bayer Aspirin with Heart Advantage) as unapproved new drugs.2008-10-28Source
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Frequently Asked Questions
Is Bayer One a Day Women’s 50+ a good supplement?

Bayer One a Day Women’s 50+ received a product quality score of 53/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 23 active ingredients Of the 32 inactive ingredients, 15 are rated safe and 3 are flagged for review.

What are the ingredients in Bayer One a Day Women’s 50+?

Bayer One a Day Women’s 50+ contains 23 active ingredients: Vitamin A (3500 IU), Vitamin C (30 mcg), Vitamin D3 (1000 IU), Vitamin E (30 IU), Vitamin K (20 mcg), Thiamin (B1) (4.5 mg), and 17 more. Notable high-dose ingredients include Vitamin D3 at 250% DV, Thiamin at 300% DV, Vitamin B6 at 300% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Bayer One a Day Women’s 50+ safe to take?

Bayer One a Day Women’s 50+ has been analyzed for ingredient safety across all its components. Of 32 inactive ingredients, 15 are rated safe. 3 ingredients are flagged for review: Cupric Oxide, Polyethylene Glycol, Titanium Dioxide (Color). '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.

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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.