Cardiovascular Research Ltd., Norival, 120 Capsules (Discontinued Item)9 Reviews
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0.24 lbs (0.11 kg)
- Product Code: CVR-20111
- UPC Code: 999901201110
- Package Quantity: 120 Capsules
- Dimensions: 2.3 x 2.3 x 4.2 in, 0.2 lbs (0.09 kg)
- Important Note:
Please Note: This item has been discontinued and replaced by CVR-13066.
- N-Acetyl-L-Tyrosine with Biopterine
- Dietary Supplement
Norival is a scientifically-designed supplement containing a special form of the amino acid L-tyrosine in conjunction with the rare vitamin, Biopterin.
Take one or two capsules daily, or as directed by a physician.
Cellulose, gelatin, magnesium stearate and silicon dioxide.
|Serving Size: 1 Capsule|
|Servings per Container: 120|
|Amount Per Serving||%Daily Value*|
|Vitamin B6 (as pyridoxal-5-phosphate)||10 mg||500%|
|N-Acetyl L-Tyrosine||300 mg||**|
|* Percent Daily Values are Based on a 2000 Calorie Diet.
** Daily Value Not Established.
iHerb Customer Reviews
This product works well with L-Methylfolate (5-MTHF). For those with homozygous MTHFR 677C-T mutation Norival and L-Methylfolate 10mg has helped my mental clarity, lethargy, moodiness, and depressive episodes. I am not on any antidepressants. Has also worked well for my teenage son with the same double MTHFR mutation.
Restless leg syndrome is a dopamine deficiency like Parkinson ’s disease or Attention Deficit Disorder. Tyrosine is the amino acid necessary for dopamine production. Tyrosine requires B-12, folinic (folic) acid and B-6. Many of us do not properly metabolize standard folic acid, requiring an alternative form called Biopterine (BH4). Plain tyrosine gave me terrible diarrhea, even when taken with B-complex. This is the only tyrosine combination I can take without negative side effects. Taken 2 hrs before bedtime helps with the restless leg insomnia, or when I get the shakes, or early in the morning when I just can’t get going, really works. Love this product!