Daily Amino Acid, 120 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calcium (as Dicalcium Phosphate and Calcium Carbonate) | 150 mg | 12% |
| L-Histidine (as L-histidine HCl) | 17 mg | ** |
| L-Isoleucine | 63 mg | ** |
| L-Leucine | 105 mg | ** |
| L-Lysine (as L-lysine HCl) | 93 mg | ** |
| dl-Methionine | 21 mg | ** |
| L-Cysteine (as L-cysteine HCl) | 11 mg | ** |
| L-Phenylalanine | 32 mg | ** |
| L-Tyrosine | 31 mg | ** |
| L-Threonine | 69 mg | ** |
| L-Valine | 58 mg | ** |
Bioavailability Excellent
Absorption Rating
- Calcium (as Dicalcium Phosphate and Calcium Carbonate) Fair
- L-Histidine (as L-histidine HCl) Good
- L-Isoleucine Good
- L-Leucine Good
- L-Lysine (as L-lysine HCl) Good
- dl-Methionine Good
- L-Cysteine (as L-cysteine HCl) Good
- L-Phenylalanine Good
- L-Tyrosine Good
- L-Threonine Good
- L-Valine Good
Other Ingredients Good
Fillers & Additives
- Whey
- Cellulose
- Stearic Acid
- Croscarmellose Sodium
- Magnesium Silicate
- Magnesium Stearate
- PEG Medium
- Polysorbate Medium
- Polyvinyl Alcohol
- Silicon Dioxide
Efficacy Very Poor
Dosage Analysis
- Calcium (as Dicalcium Phosphate and Calcium Carbonate) 150 mg Under-dosed
- L-Histidine (as L-histidine HCl) 17 mg Under-dosed
- L-Isoleucine 63 mg Effective
- L-Leucine 105 mg Under-dosed
- L-Lysine (as L-lysine HCl) 93 mg Under-dosed
- dl-Methionine 21 mg Under-dosed
- L-Cysteine (as L-cysteine HCl) 11 mg Under-dosed
- L-Phenylalanine 32 mg Under-dosed
- L-Tyrosine 31 mg Under-dosed
- L-Valine 58 mg Under-dosed
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Calcium (as Dicalcium Phosphate and Calcium Carbonate) | 150 mg | 12% |
| Sodium | 5 mg | <1% |
| L-Histidine (as L-histidine HCl) | 17 mg | ** |
| L-Isoleucine | 63 mg | ** |
| L-Leucine | 105 mg | ** |
| L-Lysine (as L-lysine HCl) | 93 mg | ** |
| dl-Methionine | 21 mg | ** |
| L-Cysteine (as L-cysteine HCl) | 11 mg | ** |
| L-Phenylalanine | 32 mg | ** |
| L-Tyrosine | 31 mg | ** |
| L-Threonine | 69 mg | ** |
| L-Valine | 58 mg | ** |
Other Ingredients
Whey Generally_safe
Cellulose Safe
Stearic Acid Safe
Magnesium Silicate Generally_safe
Magnesium Stearate Safe
PEG Caution
Polysorbate Generally_safe
Polyvinyl Alcohol Generally_safe
Silicon Dioxide Safe
Price Comparison
Price History
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Is 21st Century Daily Amino Acid, 120 Tablets a good supplement?
21st Century Daily Amino Acid, 120 Tablets received a product quality score of 68/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 12 active ingredients 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 Daily Amino Acid, 120 Tablets?
21st Century Daily Amino Acid, 120 Tablets contains 12 active ingredients: Calcium (as Dicalcium Phosphate and Calcium Carbonate) (150 mg), Sodium (5 mg), L-Histidine (as L-histidine HCl) (17 mg), L-Isoleucine (63 mg), L-Leucine (105 mg), L-Lysine (as L-lysine HCl) (93 mg), and 6 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century Daily Amino Acid, 120 Tablets safe to take?
21st Century Daily Amino Acid, 120 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: PEG. '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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