Sentry Women

Name: Sentry Women
Brand: 21st Century
SKU: 1lAYANwl
Rating: 4.7 (5809 reviews)

21st Century

4.7

★ ★ ★ ★ ★

(5809 ratings)

Iodine 150 mcg

Iron 18 mg

Chloride 72 mg

Molybdenum 50 mcg

Score

A comprehensive women's multivitamin that supports energy and hair health with bioavailable iron.

How scoring works

Quantity:120 Tablet(s) • (120 servings)

Goals:

Energy

Hair Health

Detoxification

Productivity Boost

Score 94

A comprehensive women's multivitamin that supports energy and hair health with bioavailable iron.

How scoring works

$9.99($0.08 per serving)

Amazon	$ 17.98
iHerb	$ 9.99

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Analysis

This once-daily tablet is designed to support the busy lifestyles of women. It provides 18 mg of iron bisglycinate, which is a gentler form that helps maintain healthy energy levels. The formula also includes iodine and biotin to support a healthy metabolism and hair quality.

With a comprehensive mix of vitamins and minerals, it offers a solid foundation for overall wellness. It includes electrolytes like chloride and potassium for daily balance. This is a very practical and budget-friendly choice for women who want broad nutritional coverage.

Pros

Gentler iron bisglycinate form
18 mg of iron per serving
Very affordable cost
Supports energy and hair health

Cons

Calcium can block iron uptake
Low biotin dose for beauty focus

Warnings

Accidental iron overdose is a leading cause of poisoning in children
Take with food to avoid stomach irritation

Nutrient quality

Highest impact

Tailors nutrient levels to the specific health needs of women, including iron and calcium. While some mineral forms are not specified, the overall profile is well-aligned with health maintenance.

Ingredient transparency

Highest impact

Dosages for active ingredients are clearly identified, providing clarity for consumer tracking. Labeling is straightforward regarding usage and serving size, ensuring consumers know exactly what they are taking.

Customer satisfaction

Highest impact

Massive review volume and high ratings confirm strong consumer trust and product efficacy. Consistency in feedback suggests that users find the tablet reliable and effective for long-term health maintenance.

Value for money

Highest impact

Outstanding cost per serving provides exceptional value for a comprehensive nutrient profile. The price point is extremely competitive, making routine mineral support highly accessible for all consumers.

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Goals

Selected only

Energy

Impact

High effect

B+

Goal Fit

B-

Strength of Support

B-

Coverage

Formula Quality

This women's multivitamin uses a chelated form of iron alongside iodine and B-vitamins to support oxygen transport and metabolic efficiency. The 18 mg of iron is crucial for individuals with higher needs to help sustain physical and mental vitality.

The addition of magnesium and a complete B-complex aids in the body's conversion of food into ATP. This formulation provides comprehensive foundational support for daily energy management.

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Hair Health

Impact

Moderate effect

B+

Goal Fit

C-

Strength of Support

C-

Coverage

C-

Formula Quality

Iron and iodine provide foundational support for red blood cell production and thyroid function, which are essential for preventing hair shedding. These nutrients appear well aligned for those addressing thinning related to common mineral gaps.

The biotin level of 40 mcg serves only as a token addition that likely does not contribute significantly to hair shaft strength. High levels of calcium carbonate could potentially block the absorption of iron, limiting the formula's effectiveness for hair density.

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Detoxification

Impact

Moderate effect

C-

Goal Fit

Strength of Support

C-

Coverage

Formula Quality

Vitamins B6, B12, and folate provide methylation support necessary for Phase II liver pathways. The addition of molybdenum and selenium assists in enzyme-driven toxin neutralization at a maintenance level.

Antioxidant capacity is supported by standard doses of vitamins C and E to protect cells from oxidative byproducts. This multivitamin provides a reasonable baseline but lacks the high-dose actives required for targeted detoxification support.

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Productivity Boost

Impact

Lower effect

Goal Fit

Strength of Support

Coverage

D+

Formula Quality

This women's multivitamin provides 18mg of iron to support brain oxygenation and general energy levels. However, the B12 dosage (6mcg) is far below the level required to provide a meaningful productivity boost.

The 400mg of calcium in the tablet will likely block the absorption of the iron, further reducing its effectiveness. It offers foundational health support but lacks the focused potency and bioactive forms needed for focus.

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Ingredients

Display goals

Ingredient	Amount per serving
Vitamin A (Beta-Carotene, Vitamin A Acetate)	1050 mcg
Vitamin C (Ascorbic Acid)	75 mg
Vitamin D3 (Cholecalciferol)	25 mcg
Vitamin E (DL-Alpha-Tocopheryl Acetate)	15.8 mg
Vitamin K (Phytonadione)	50 mcg
Thiamine (Thiamine Mononitrate, Vitamin B1)	1.1 mg
Riboflavin (Vitamin B2)	1.1 mg
Niacin (Niacinamide)	14 mg
Vitamin B6 (Pyridoxine Hydrochloride)	2 mg
Folate	667 mcg DFE
Vitamin B12 (Cyanocobalamin)	6 mcg
Biotin	40 mcg
Pantothenic Acid (D-Calcium Pantothenate)	15 mg
Calcium (Calcium Carbonate, Dicalcium Phosphate)	200 mg
Iron (Ferrous Fumarate Chelate)	18 mg
Phosphorus (Dicalcium Phosphate)	20 mg
Iodine (Potassium Iodide)	150 mcg
Magnesium (Magnesium Oxide)	100 mg
Zinc (Zinc Oxide)	8 mg
Selenium (Sodium Selenate)	18 mcg
Copper (Copper Sulfate)	0.5 mg
Manganese (Manganese Sulfate)	1.8 mg
Chromium (Chromium Picolinate)	32 mcg
Molybdenum (Sodium Molybdate)	50 mcg
Chloride (Potassium Chloride)	72 mg
Potassium (Potassium Chloride)	80 mg

Report overview

Iodine (Potassium Iodide) · 150 mcg OverallScore

A+

Active Ingredient Quality & Bioavailability

A+

Dose, Safety & Label Transparency

A+

Value

A comprehensive multivitamin for women that provides the RDA of iodine using potassium iodide. It is a reliable and highly economical option for daily thyroid maintenance.

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Iron (Ferrous Fumarate Chelate) · 18 mg OverallScore

Active Ingredient Quality & Bioavailability

A+

Dose, Safety & Label Transparency

A+

Value

This multivitamin claims to use an iron chelate and offers a full 18mg dose at a very low price. However, high calcium content will almost certainly block its effective absorption in the digestive tract.

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Chloride (Potassium Chloride) · 72 mg OverallScore

Active Ingredient Quality & Bioavailability

B-

Dose, Safety & Label Transparency

A+

Value

Sentry Women provides a standard daily dose of chloride from a bioavailable salt source at a very low price. Its high label transparency is a plus, although the tablet form is less than ideal for those seeking the fastest absorption.

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Value