EN
USD
Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Total:
Discount:
Together:
Quantity:
Cart Total:
Checkout
Customers Also Bought:

Cardiovascular Research Ltd., Norival, 120 Capsules (Discontinued Item)

MSRP:
$28.95
Our Price:
$28.00
You Save:
$0.95 (3)
Earn 10% Loyalty Credit ?

Discontinued

?
Out of Stock - Discontinued
  • Shipping Weight: 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)
  • Please Note: This item has been discontinued and replaced by CVR-13066.

Product Overview

Description

  • 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.

Suggested Use

Take one or two capsules daily, or as directed by a physician.

Other Ingredients

Cellulose, gelatin, magnesium stearate and silicon dioxide.

Supplement Facts
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 **
Biopterin 25 mcg **
* Percent Daily Values are Based on a 2000 Calorie Diet.
** Daily Value Not Established.
iHerb Customer Reviews
 

Did not experience benefits noted by others

Posted by Health-Is-Wealth on Oct 30, 2013

Nice idea, but these don't work for me - P5P causes me to feel rubbish. I'd maybe get this again to try it if it contained non-P5P B6, non-acetyl tyrosine and biopterin - and if it didn't contain added stearate and sillycon. I recently tried Jarrows acetyl tyrosine with B6 - beneficial only for the small amount of B6, but I know that L tyrosine works. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.

Was this review helpful to you?

There are better options if not looking for the rare Biopterin

Posted by Reviewer1733570 on Jun 07, 2013

I get a nice awakening push from plain Tyrosine, however, far from improving mood I get irritable on this product.

Was this review helpful to you?

Perfect for people with genetic problems

Posted by Reviewer3181965 on Oct 08, 2012

I've just discovered I have a rare inborn error of metabolism that leads to low levels of tetrahydrobiopterin (BH4). I tried ordinary L-tyrosine and it worked. Norival actually includes biopterin (although doesn't state which form BH4 or BH2)and cofactor P5P, in addition to N-acetyl L-tyrosine (active form). A deficiency of an enzyme is felt in every cell, especially in the brain. Norival made my brain work properly, my temperature regulation improved amazingly! The dose must be individually adjusted. I take all such supplements 3x daily, in smaller doses, to keep the blood supply stable. I only wish I could contact the company, to learn which biopterin they use.

Was this review helpful to you?

Norival, 120 capsules

Posted by Reviewer2869683 on Oct 18, 2011

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.

Was this review helpful to you?

Trying these for restless legs.

Posted by Reviewer1582777 on Jun 30, 2011

I bought these, along with Natural Factors E400IU Succinate, after a search for products that might help restless legs, which I've had, off and on, most of my life. It's the first time I've ever taken anything for the problem, as it comes and goes, but the latest bout spurrd me on. I opted to take them in the morning, not at night. I can't say yet if these products work for sure, but I haven't had any problems since my last bout a few days after I started taking both supplements.

Was this review helpful to you?