Hair, Skin & Nails, 90 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin A (as Retinyl Palmitate) | 1,500 mcg | 167% |
| Vitamin C (as Ascorbic Acid) | 60 mg | 67% |
| Vitamin D3 (as Cholecalciferol) (1,000 IU) | 25 mcg | 125% |
| Vitamin E (as dl-Alpha Tocopheryl Acetate) | 6.75 mg | 45% |
| Thiamin (as Thiamin HCl) | 5 mg | 417% |
| Riboflavin (Vitamin B-2) | 2 mg | 154% |
| Niacin (as Niacinamide) | 25 mg | 156% |
| Vitamin B-6 (as Pyridoxine HCl) | 5 mg | 295% |
| Folate (200 mcg Folic Acid) | 334 mcg DFE | 83% |
| Vitamin B-12 (as Cyanocobalamin) | 8 mcg | 334% |
| Biotin (as d-Biotin) | 5,000 mcg | 16,667% |
| Pantothenic Acid (as d-Calcium Pantothenate) | 15 mg | 300% |
| Choline (as Choline Bitartrate) | 10 mg | 2% |
| Calcium (as Dicalcium Phosphate & Calcium Carbonate) | 372 mg | 29% |
| Phosphorus (as Dicalcium Phosphate) | 180 mg | 14% |
| Magnesium (as Magnesium Oxide) | 50 mg | 12% |
| Zinc (as Zinc Gluconate) | 7.5 mg | 68% |
| Manganese (as Manganese Gluconate) | 2 mg | 87% |
| PABA (Para-Aminobenzoic Acid) | 10 mg | ** |
| Inositol | 30 mg | ** |
| Citrus Bioflavonoid / Rutin Complex | 38 mg | ** |
| Horsetail Powder (Equisetum arvense) (aerial) | 3 mg | ** |
| Collagen (Hydrolyzed Gelatin) | 50 mg | ** |
Bioavailability Good
Absorption Rating
- Vitamin A (as Retinyl Palmitate) Good
- Vitamin C (as Ascorbic Acid) Fair
- Vitamin D3 (as Cholecalciferol) (1,000 IU) Good
- Vitamin E (as dl-Alpha Tocopheryl Acetate) Poor
- Thiamin (as Thiamin HCl) Fair
- Riboflavin (Vitamin B-2) Good
- Niacin (as Niacinamide) Good
- Vitamin B-6 (as Pyridoxine HCl) Fair
- Folate (200 mcg Folic Acid) Fair
- Vitamin B-12 (as Cyanocobalamin) Fair
- Biotin (as d-Biotin) Good
- Pantothenic Acid (as d-Calcium Pantothenate) Good
- Choline (as Choline Bitartrate) Poor
- Calcium (as Dicalcium Phosphate & Calcium Carbonate) Fair
- Phosphorus (as Dicalcium Phosphate) Good
- Magnesium (as Magnesium Oxide) Poor
- Zinc (as Zinc Gluconate) Good
- Manganese (as Manganese Gluconate) Good
- PABA (Para-Aminobenzoic Acid) Good
- Inositol Good
- Citrus Bioflavonoid / Rutin Complex Fair
- Horsetail Powder (Equisetum arvense) (aerial) Fair
- Collagen (Hydrolyzed Gelatin) Poor
Other Ingredients Very Good
Fillers & Additives
- Cellulose
- Maltodextrin (Non-GMO)
- Croscarmellose Sodium
- Stearic Acid
- Silicon Dioxide
- Magnesium Silicate
- Magnesium Stearate
- Polyethylene Glycol Low
- Polysorbate Medium
- Polyvinyl Alcohol
Efficacy Fair
Dosage Analysis
- Vitamin A (as Retinyl Palmitate) 1,500 mcg Effective
- Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
- Vitamin D3 (as Cholecalciferol) (1,000 IU) 25 mcg Effective
- Vitamin E (as dl-Alpha Tocopheryl Acetate) 6.75 mg Under-dosed
- Thiamin (as Thiamin HCl) 5 mg Effective
- Riboflavin (Vitamin B-2) 2 mg Effective
- Niacin (as Niacinamide) 25 mg Effective
- Vitamin B-6 (as Pyridoxine HCl) 5 mg Effective
- Folate (200 mcg Folic Acid) 334 mcg DFE Under-dosed
- Vitamin B-12 (as Cyanocobalamin) 8 mcg Effective
- Biotin (as d-Biotin) 5,000 mcg Effective
- Pantothenic Acid (as d-Calcium Pantothenate) 15 mg Effective
- Choline (as Choline Bitartrate) 10 mg Under-dosed
- Calcium (as Dicalcium Phosphate & Calcium Carbonate) 372 mg Under-dosed
- Phosphorus (as Dicalcium Phosphate) 180 mg Under-dosed
- Magnesium (as Magnesium Oxide) 50 mg Under-dosed
- Zinc (as Zinc Gluconate) 7.5 mg Under-dosed
- Manganese (as Manganese Gluconate) 2 mg Effective
- PABA (Para-Aminobenzoic Acid) 10 mg Under-dosed
- Inositol 30 mg Under-dosed
- Citrus Bioflavonoid / Rutin Complex 38 mg Under-dosed
- Collagen (Hydrolyzed Gelatin) 50 mg Under-dosed
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin A (as Retinyl Palmitate) | 1,500 mcg | 167% |
| Vitamin C (as Ascorbic Acid) | 60 mg | 67% |
| Vitamin D3 (as Cholecalciferol) (1,000 IU) | 25 mcg | 125% |
| Vitamin E (as dl-Alpha Tocopheryl Acetate) | 6.75 mg | 45% |
| Thiamin (as Thiamin HCl) | 5 mg | 417% |
| Riboflavin (Vitamin B-2) | 2 mg | 154% |
| Niacin (as Niacinamide) | 25 mg | 156% |
| Vitamin B-6 (as Pyridoxine HCl) | 5 mg | 295% |
| Folate (200 mcg Folic Acid) | 334 mcg DFE | 83% |
| Vitamin B-12 (as Cyanocobalamin) | 8 mcg | 334% |
| Biotin (as d-Biotin) | 5,000 mcg | 16,667% |
| Pantothenic Acid (as d-Calcium Pantothenate) | 15 mg | 300% |
| Choline (as Choline Bitartrate) | 10 mg | 2% |
| Calcium (as Dicalcium Phosphate & Calcium Carbonate) | 372 mg | 29% |
| Phosphorus (as Dicalcium Phosphate) | 180 mg | 14% |
| Magnesium (as Magnesium Oxide) | 50 mg | 12% |
| Zinc (as Zinc Gluconate) | 7.5 mg | 68% |
| Manganese (as Manganese Gluconate) | 2 mg | 87% |
| PABA (Para-Aminobenzoic Acid) | 10 mg | ** |
| Inositol | 30 mg | ** |
| Citrus Bioflavonoid / Rutin Complex | 38 mg | ** |
| Horsetail Powder (Equisetum arvense) (aerial) | 3 mg | ** |
| Collagen (Hydrolyzed Gelatin) | 50 mg | ** |
Other Ingredients
Cellulose Safe
Maltodextrin (Non-GMO) Generally_safe
Stearic Acid Safe
Silicon Dioxide Safe
Magnesium Silicate Generally_safe
Magnesium Stearate Safe
Polyethylene Glycol Caution
Polysorbate Generally_safe
Polyvinyl Alcohol Generally_safe
Price Comparison
Price History
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Is 21st Century Hair, Skin & Nails a good supplement?
21st Century Hair, Skin & Nails, 90 Tablets received a product quality score of 72/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 23 active ingredients with 30 servings per container. Of the 10 inactive ingredients, 5 are rated safe and 1 are flagged for review. The manufacturer, 21st Century, holds a brand trust score of 76/100 with 2 verified certifications including Consumerlab, Nsf Gmp.
What are the ingredients in 21st Century Hair, Skin & Nails?
21st Century Hair, Skin & Nails contains 23 active ingredients: Vitamin A (as Retinyl Palmitate) (1,500 mcg), Vitamin C (as Ascorbic Acid) (60 mg), Vitamin D3 (as Cholecalciferol) (1,000 IU) (25 mcg), Vitamin E (as dl-Alpha Tocopheryl Acetate) (6.75 mg), Thiamin (as Thiamin HCl) (5 mg), Riboflavin (Vitamin B-2) (2 mg), and 17 more. Notable high-dose ingredients include Thiamin at 417% DV, Vitamin B-6 at 295% DV, Vitamin B-12 at 334% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century Hair, Skin & Nails safe to take?
21st Century Hair, Skin & Nails, 90 Tablets has been analyzed for ingredient safety across all its components. Of 10 inactive ingredients, 5 are rated safe. 1 ingredient is flagged for review: 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 21st Century a trustworthy supplement brand?
21st Century receives a brand trust score of 76/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1991 and headquartered in Tempe, Arizona, United States, the company offers 231 products in their lineup. They hold 2 verified certifications including Consumerlab, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: 21st Century has 4 historical regulatory incidents on record, which are factored into the trust score.
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