Kirkland Signature Daily Multivitamin supplement bottle
Kirkland Signature

Daily Multivitamin

What We Researched
32 active ingredients analyzed · 35 inactive ingredients decoded · 6 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
82
Product Score Good
82
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (29% as Beta Carotene) 3500 IU 70%
Vitamin C 90 mg 150%
Vitamin D 400 IU 100%
Vitamin E 30 IU 100%
Vitamin K 25 mcg 31%
Thiamin (Vit. B1) 1.5 mg 100%
Riboflavin (Vit. B2) 1.7 mg 100%
Niacin 20 mg 100%
Vitamin B6 2 mg 100%
Folate (Folic Acid) 500 mcg 125%
Vitamin B12 6 mcg 100%
Biotin 30 mcg 100%
Pantothenic Acid 10 mg 10%
Calcium 200 mg 100%
Iron 18 mg 20%
Phosphorus 109 mg 100%
Iodine 150 mcg 11%
Magnesium 100 mg 25%
Zinc 11 mg 73%
Selenium 55 mcg 79%
Copper 0.9 mg 45%
Manganese 2.3 mg 115%
Chromium (as Chromium Picolinate) 35 mcg 60%
Molybdenum 45 mcg 2%
Chloride 72 mg 2%
Potassium 80 mg
Silicon 2 mg
Lycopene 300 mcg
Lutein (Flower) 250 mcg
Boron 150 mcg
Vanadium 10 mcg
Nickel 5 mcg
Bioavailability Very Good

Absorption Rating

  • Vitamin A (29% as Beta Carotene) Fair
  • Vitamin C Fair
  • Vitamin D Good
  • Vitamin E Good
  • Vitamin K Good
  • Thiamin (Vit. B1) Good
  • Riboflavin (Vit. B2) Good
  • Niacin Good
  • Vitamin B6 Fair
  • Folate (Folic Acid) Fair
  • Vitamin B12 Fair
  • Biotin Good
  • Pantothenic Acid Good
  • Calcium Good
  • Iron Fair
  • Phosphorus Good
  • Iodine Good
  • Magnesium Good
  • Zinc Fair
  • Selenium Good
  • Copper Fair
  • Manganese Good
  • Chromium (as Chromium Picolinate) Good
  • Molybdenum Good
  • Chloride Good
  • Potassium Good
  • Silicon Fair
  • Lycopene Good
  • Lutein (Flower) Good
  • Boron Fair
  • Vanadium Poor
  • Nickel Fair
Other Ingredients Excellent

Fillers & Additives

  • Dibasic Calcium Phosphate
  • Microcrystalline Cellulose Gel
  • Ascorbic Acid
  • Ferrous Fumarate Low
  • Croscarmellose Sodium
  • Stearic Acid
  • Hypromellose
  • Dicalcium Phosphate
  • Magnesium Oxide
  • Gelatin
  • Niacinamide
  • Zinc Oxide
  • dl-Alpha Tocopheryl Acetate
  • Silicon Dioxide
  • Manganese Sulfate
  • Crospovidone
  • Pyridoxine Hydrochloride
  • Copper Oxide
  • Thiamin Mononitrate
  • Riboflavin
  • Vitamin A Acetate
  • Polyethylene Glycol Low
  • Chromium Picolinate
  • Folic Acid
  • Potassium Iodide
  • Sodium Selenate
  • Sodium Molybdate
  • Phylloquinone
  • Biotin
  • Sodium Metavanadate
  • Nickel Sulfate
  • Stannous Chloride
  • Cholecalciferol
  • Cyanocobalamin
  • Lutein
Efficacy Good

Dosage Analysis

  • Vitamin A (29% as Beta Carotene) 3500 IU Under-dosed
  • Vitamin C 90 mg Effective
  • Vitamin D 400 IU Under-dosed
  • Vitamin E 30 IU Effective
  • Vitamin K 25 mcg Under-dosed
  • Thiamin (Vit. B1) 1.5 mg Effective
  • Riboflavin (Vit. B2) 1.7 mg Effective
  • Niacin 20 mg Effective
  • Vitamin B6 2 mg Effective
  • Folate (Folic Acid) 500 mcg Effective
  • Vitamin B12 6 mcg Effective
  • Biotin 30 mcg Effective
  • Pantothenic Acid 10 mg Effective
  • Calcium 200 mg Under-dosed
  • Iron 18 mg Effective
  • Phosphorus 109 mg Under-dosed
  • Iodine 150 mcg Effective
  • Magnesium 100 mg Under-dosed
  • Zinc 11 mg Effective
  • Selenium 55 mcg Effective
  • Copper 0.9 mg Effective
  • Manganese 2.3 mg Effective
  • Chromium (as Chromium Picolinate) 35 mcg Effective
  • Molybdenum 45 mcg Effective
  • Chloride 72 mg Under-dosed
  • Potassium 80 mg Under-dosed
  • Silicon 2 mg Under-dosed
  • Lycopene 300 mcg Under-dosed
  • Lutein (Flower) 250 mcg Under-dosed
  • Boron 150 mcg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (29% as Beta Carotene) 3500 IU 70%
Vitamin C 90 mg 150%
Vitamin D 400 IU 100%
Vitamin E 30 IU 100%
Vitamin K 25 mcg 31%
Thiamin (Vit. B1) 1.5 mg 100%
Riboflavin (Vit. B2) 1.7 mg 100%
Niacin 20 mg 100%
Vitamin B6 2 mg 100%
Folate (Folic Acid) 500 mcg 125%
Vitamin B12 6 mcg 100%
Biotin 30 mcg 100%
Pantothenic Acid 10 mg 10%
Calcium 200 mg 100%
Iron 18 mg 20%
Phosphorus 109 mg 100%
Iodine 150 mcg 11%
Magnesium 100 mg 25%
Zinc 11 mg 73%
Selenium 55 mcg 79%
Copper 0.9 mg 45%
Manganese 2.3 mg 115%
Chromium (as Chromium Picolinate) 35 mcg 60%
Molybdenum 45 mcg 2%
Chloride 72 mg 2%
Potassium 80 mg
Silicon 2 mg
Lycopene 300 mcg
Lutein (Flower) 250 mcg
Boron 150 mcg
Vanadium 10 mcg
Nickel 5 mcg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Dibasic Calcium Phosphate Generally_safe

It is used as a filler and to improve tablet hardness.

Microcrystalline Cellulose Gel Unknown
Ascorbic Acid Safe

Prevents oxidation and provides vitamin C.

Ferrous Fumarate Caution

It is used to supplement iron intake.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Dicalcium Phosphate Safe

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

Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Niacinamide Safe

It is included for its potential health benefits.

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.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Manganese Sulfate Generally_safe

It provides a source of manganese.

Crospovidone Generally_safe

It is used as a binder to help tablets or capsules disintegrate.

Pyridoxine Hydrochloride Safe

It is used as a source of vitamin B6.

Copper Oxide Unknown
Thiamin Mononitrate Safe

It is used as a source of vitamin B1.

Riboflavin Safe

It is used as a source of vitamin B2.

Vitamin A Acetate Generally_safe

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

Polyethylene Glycol Caution

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

Chromium Picolinate Generally_safe

It is included as a source of chromium.

Folic Acid Safe

It is used as a source of folate.

Potassium Iodide Generally_safe

It provides iodine, an essential mineral.

Sodium Selenate Generally_safe

It is used as a source of selenium.

Sodium Molybdate Generally_safe

It is used to supplement molybdenum intake.

Phylloquinone Safe

It is added as a source of vitamin K.

Biotin Safe

It is used for its potential benefits related to hair, skin, and nail health.

Sodium Metavanadate Unknown
Nickel Sulfate Unknown
Stannous Chloride Unknown
Cholecalciferol Safe

It is used to supplement vitamin D levels.

Cyanocobalamin Safe

It is used as a source of vitamin B12.

Lutein Safe

It is added for its antioxidant properties and potential benefits for eye health.

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
Kirkland Signature

Founded 1995 · Issaquah, Washington, United States · 26 products · costco.com/kirkland-signature.html

Certifications

6 certifications
Consumerlab Verified
Non Gmo Project Verified
Usda Organic Verified
Usp Verified Verified Source
Gluten Free Gfco Verified
Vegan Certified Verified

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Claimed

Violation History

3 incidents
Lawsuit Falsely advertising rotisserie chicken as containing 'no preservatives'2026Source
Recall Kirkland Signature B100 Complex Timed Release2025-03-31Source
Recall Kirkland Signature Severe Cold and Flu Plus Congestion2024-11-30Source
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Frequently Asked Questions
Is Kirkland Signature Daily Multivitamin a good supplement?

Kirkland Signature Daily Multivitamin received a product quality score of 82/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 32 active ingredients Of the 35 inactive ingredients, 17 are rated safe and 2 are flagged for review. The manufacturer, Kirkland Signature, holds a brand trust score of 82/100 with 6 verified certifications including Consumerlab, Non Gmo Project, Usda Organic, Usp Verified.

What are the ingredients in Kirkland Signature Daily Multivitamin?

Kirkland Signature Daily Multivitamin contains 32 active ingredients: Vitamin A (29% as Beta Carotene) (3500 IU), Vitamin C (90 mg), Vitamin D (400 IU), Vitamin E (30 IU), Vitamin K (25 mcg), Thiamin (Vit. B1) (1.5 mg), and 26 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Kirkland Signature Daily Multivitamin safe to take?

Kirkland Signature Daily Multivitamin has been analyzed for ingredient safety across all its components. Of 35 inactive ingredients, 17 are rated safe. 2 ingredients are flagged for review: Ferrous Fumarate, Polyethylene Glycol. '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 Kirkland Signature a trustworthy supplement brand?

Kirkland Signature receives a brand trust score of 82/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1995 and headquartered in Issaquah, Washington, United States, the company offers 26 products in their lineup. They hold 6 verified certifications including Consumerlab, Non Gmo Project, Usda Organic, Usp Verified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Kirkland Signature has 3 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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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.