Longer, Stronger Hair and Nails™, 60 Liquid Soft-Gels
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin C (as Calcium Ascorbate) | 200 mg | 222% |
| Biotin | 2,600 mcg | 8,667% |
| Calcium | 30 mg | 2% |
| Zinc (as Zinc Picolinate) | 10 mg | 91% |
| Copper (as Copper Amino Acid Chelate) | 1 mg | 111% |
| Manganese (as Manganese Citrate) | 5 mg | 271% |
| Flaxseed Oil (seed) | 1,058 mg | † |
| Gotu Kola extract (10% triterpenes, 18 mg) (herb) | 180 mg | † |
| Horsetail (Equisetum arvense) extract (7% silica, 11.2 mg) (herb) | 160 mg | † |
| Citrus (Citrus spp.) extract (50% bioflavonoids, 50 mg) (fruit) | 100 mg | † |
| Lysine (as Lysine Hydrochloride) | 80 mg | † |
| Proline | 80 mg | † |
| BioPerine ComplexBioPerine® Black Pepper extract (95% piperine)(fruit), Ginger extract (5% gingerols)(rhizome) | 12 mg | † |
Bioavailability Very Good
Absorption Rating
- Vitamin C (as Calcium Ascorbate) Good
- Biotin Good
- Calcium Good
- Zinc (as Zinc Picolinate) Good
- Copper (as Copper Amino Acid Chelate) Fair
- Manganese (as Manganese Citrate) Good
- Flaxseed Oil (seed) Good
- Gotu Kola extract (10% triterpenes, 18 mg) (herb) Fair
- Horsetail (Equisetum arvense) extract (7% silica, 11.2 mg) (herb) Poor
- Citrus (Citrus spp.) extract (50% bioflavonoids, 50 mg) (fruit) Fair
- Lysine (as Lysine Hydrochloride) Good
- Proline Fair
- BioPerine ComplexBioPerine® Black Pepper extract (95% piperine)(fruit), Ginger extract (5% gingerols)(rhizome) Good
Other Ingredients Very Good
Fillers & Additives
- Gelatin
- Purified Water
- Glycerin
- Beeswax
- Soy Lecithin
- Titanium Dioxide (Color) Medium
- Dextrin
- Caramel (Color)
- Red cabbage extract (color) and Maltodextrin
Efficacy Fair
Dosage Analysis
- Vitamin C (as Calcium Ascorbate) 200 mg Effective
- Biotin 2,600 mcg Effective
- Calcium 30 mg Under-dosed
- Zinc (as Zinc Picolinate) 10 mg Effective
- Copper (as Copper Amino Acid Chelate) 1 mg Effective
- Manganese (as Manganese Citrate) 5 mg Effective
- Flaxseed Oil (seed) 1,058 mg Effective
- Gotu Kola extract (10% triterpenes, 18 mg) (herb) 180 mg Under-dosed
- Horsetail (Equisetum arvense) extract (7% silica, 11.2 mg) (herb) 160 mg Under-dosed
- Citrus (Citrus spp.) extract (50% bioflavonoids, 50 mg) (fruit) 100 mg Under-dosed
- Lysine (as Lysine Hydrochloride) 80 mg Under-dosed
- Proline 80 mg Under-dosed
- BioPerine ComplexBioPerine® Black Pepper extract (95% piperine)(fruit), Ginger extract (5% gingerols)(rhizome) 12 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Calories | 20 | |
| Total Fat | 1 g | 1%** |
| Protein | 1 g | |
| Vitamin C (as Calcium Ascorbate) | 200 mg | 222% |
| Biotin | 2,600 mcg | 8,667% |
| Calcium | 30 mg | 2% |
| Zinc (as Zinc Picolinate) | 10 mg | 91% |
| Copper (as Copper Amino Acid Chelate) | 1 mg | 111% |
| Manganese (as Manganese Citrate) | 5 mg | 271% |
| Flaxseed Oil (seed) | 1,058 mg | † |
| Gotu Kola extract (10% triterpenes, 18 mg) (herb) | 180 mg | † |
| Horsetail (Equisetum arvense) extract (7% silica, 11.2 mg) (herb) | 160 mg | † |
| Citrus (Citrus spp.) extract (50% bioflavonoids, 50 mg) (fruit) | 100 mg | † |
| Lysine (as Lysine Hydrochloride) | 80 mg | † |
| Proline | 80 mg | † |
| BioPerine ComplexBioPerine® Black Pepper extract (95% piperine)(fruit), Ginger extract (5% gingerols)(rhizome) | 12 mg | † |
Other Ingredients
Gelatin Safe
Purified Water Safe
Glycerin Safe
Beeswax Safe
Soy Lecithin Safe
Titanium Dioxide (Color) Caution
Dextrin Generally_safe
Caramel (Color) Generally_safe
Price Comparison
Price History
Tracked across major retailers. Updated periodically.
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Is Irwin Naturals Longer, Stronger Hair and Nails™ a good supplement?
Irwin Naturals Longer, Stronger Hair and Nails™, 60 Liquid Soft-Gels received a product quality score of 78/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 16 active ingredients with 30 servings per container. Of the 9 inactive ingredients, 5 are rated safe and 1 are flagged for review. The manufacturer, Irwin Naturals, holds a brand trust score of 78/100 with 1 verified certifications including Nsf Gmp.
What are the ingredients in Irwin Naturals Longer, Stronger Hair and Nails™?
Irwin Naturals Longer, Stronger Hair and Nails™ contains 16 active ingredients: Calories (20), Total Fat (1 g), Protein (1 g), Vitamin C (as Calcium Ascorbate) (200 mg), Biotin (2,600 mcg), Calcium (30 mg), and 10 more. Notable high-dose ingredients include Vitamin C at 222% DV, Biotin at 8,667% DV, Manganese at 271% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is Irwin Naturals Longer, Stronger Hair and Nails™ safe to take?
Irwin Naturals Longer, Stronger Hair and Nails™, 60 Liquid Soft-Gels has been analyzed for ingredient safety across all its components. Of 9 inactive ingredients, 5 are rated safe. 1 ingredient is flagged for review: 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.
Is Irwin Naturals a trustworthy supplement brand?
Irwin Naturals receives a brand trust score of 78/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1994 and headquartered in Los Angeles, California, United States, the company offers 130 products in their lineup. They hold 1 verified certifications including Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Irwin Naturals has 2 historical regulatory incidents on record, which are factored into the trust score.
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