Nature's Answer MulleinX® Respiratory, NAC & Zinc, 90 Vegetarian Capsules supplement bottle
Nature's Answer

MulleinX® Respiratory, NAC & Zinc, 90 Vegetarian Capsules

What We Researched
4 active ingredients analyzed · 3 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
80
Product Score Good
78
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Zinc (as Zinc Citrate) 5 mg 45%*
Mullein-X® Proprietary Extract BlendMullein (Verbascum thapsus L) Leaf, Nettle (Urtica dioica L) Leaf, Plantain (Plantago major) Leaf, Elecampane (Inula helenium L) Root, Horehound (Marrubium vulgare L) Whole Herb, Marshmallow (Althea officinalis L) Root. 1500 mg
N-Acetyl L-Cysteine (NAC) 250 mg
English Ivy (Hedera helix L)Leaf Extract (standardized to 10% hederacoside C) 25 mg
Bioavailability Very Good

Absorption Rating

  • Zinc (as Zinc Citrate) Good
  • Mullein-X® Proprietary Extract BlendMullein (Verbascum thapsus L) Leaf, Nettle (Urtica dioica L) Leaf, Plantain (Plantago major) Leaf, Elecampane (Inula helenium L) Root, Horehound (Marrubium vulgare L) Whole Herb, Marshmallow (Althea officinalis L) Root. Fair
  • N-Acetyl L-Cysteine (NAC) Good
  • English Ivy (Hedera helix L)Leaf Extract (standardized to 10% hederacoside C) Good
Other Ingredients Excellent

Fillers & Additives

  • Dicalcium Phosphate
  • Vegetable Cellulose (Capsule)
  • Quik-Sorb® (ginger rhizome, amla fruit, capsicum fruit)
Efficacy Poor

Dosage Analysis

  • Zinc (as Zinc Citrate) 5 mg Under-dosed
  • Mullein-X® Proprietary Extract BlendMullein (Verbascum thapsus L) Leaf, Nettle (Urtica dioica L) Leaf, Plantain (Plantago major) Leaf, Elecampane (Inula helenium L) Root, Horehound (Marrubium vulgare L) Whole Herb, Marshmallow (Althea officinalis L) Root. 1500 mg Effective
  • N-Acetyl L-Cysteine (NAC) 250 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Zinc (as Zinc Citrate) 5 mg 45%*
Mullein-X® Proprietary Extract BlendMullein (Verbascum thapsus L) Leaf, Nettle (Urtica dioica L) Leaf, Plantain (Plantago major) Leaf, Elecampane (Inula helenium L) Root, Horehound (Marrubium vulgare L) Whole Herb, Marshmallow (Althea officinalis L) Root. 1500 mg
N-Acetyl L-Cysteine (NAC) 250 mg
English Ivy (Hedera helix L)Leaf Extract (standardized to 10% hederacoside C) 25 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Dicalcium Phosphate Safe

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

Vegetable Cellulose (Capsule) Safe

It is used as a material for making vegetarian capsules.

Quik-Sorb® (ginger rhizome, amla fruit, capsicum fruit) Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$21$20$19$18$17 Mar 12 $18.74
iHerb

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

Brand Trust Report
Nature's Answer

Founded 1972 · Hauppauge, New York, United States · 234 products · naturesanswer.com

Certifications

5 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
Usda Organic Verified Source

Transparency

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

Violation History

3 incidents
Recall Coral Calcium2021-05-13Source
Fda Warning Product (Coral Calcium) contained cesium chloride, which is considered a new dietary ingredient that has not been shown to be safe. The product was deemed adulterated.2021-05-05Source
Prop 65 Lead2014-08-19Source
Related Supplements
Frequently Asked Questions
Is Nature's Answer MulleinX® Respiratory, NAC & Zinc a good supplement?

Nature's Answer MulleinX® Respiratory, NAC & Zinc, 90 Vegetarian Capsules received a product quality score of 80/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 4 active ingredients with 45 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Nature's Answer, holds a brand trust score of 78/100 with 5 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Nsf Gmp.

What are the ingredients in Nature's Answer MulleinX® Respiratory, NAC & Zinc?

Nature's Answer MulleinX® Respiratory, NAC & Zinc contains 4 active ingredients: Zinc (as Zinc Citrate) (5 mg), Mullein-X® Proprietary Extract BlendMullein (Verbascum thapsus L) Leaf, Nettle (Urtica dioica L) Leaf, Plantain (Plantago major) Leaf, Elecampane (Inula helenium L) Root, Horehound (Marrubium vulgare L) Whole Herb, Marshmallow (Althea officinalis L) Root. (1500 mg), N-Acetyl L-Cysteine (NAC) (250 mg), English Ivy (Hedera helix L)Leaf Extract (standardized to 10% hederacoside C) (25 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Answer MulleinX® Respiratory, NAC & Zinc safe to take?

Nature's Answer MulleinX® Respiratory, NAC & Zinc, 90 Vegetarian Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Nature's Answer a trustworthy supplement brand?

Nature's Answer receives a brand trust score of 78/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Hauppauge, New York, United States, the company offers 234 products in their lineup. They hold 5 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nature's Answer has 3 historical regulatory incidents on record, which are factored into the trust score.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

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 is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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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.