Question 1

Is this NAC?

Accepted Answer

N-acetyl Cysteine (NAC) is the more stable form of the amino acid L-Cysteine due to the additional acetyl molecule attached.

L-Cysteine can directly participate in glutathione synthesis, whereas N-acetyl-L-cysteine must be first de-acetylated (i.e., broken down) before its incorporation to glutathione. Cell studies have shown  L-Cysteine to be more effective in increasing cellular antioxidant glutathione levels.

However, L-Cysteine is less stable than NAC so oxidizes more readily in the body. To help prevent or slow this process, 3x more ascorbic acid (vitamin C) should be consumed. So for every 1g L-Cysteine consider taking 3 g Vitamin C.

Question 2

I read an article about a new study saying this will cure hangovers. Thoughts?

Accepted Answer

I read that article and bought a bottle to try. It works! Absolutely amazing hangover cure that actually works. I get hangovers from just 2 glasses of beer normally and now I get virtually none. I just take 2 tablets each time I drink and may take another if I go hard. If I drink too much and forget to take a 3rd tablet, I may have a very mild headache the next day, which is much improved from being out for the count all day like I used be after drinking. My boyfriend and roommate can also attest and ask me for some whenever we have some drinks together. All I can say is, just try it. You'll be amazed.

Question 3

Is it made of human hair? If surprised read about L cysteine or E920(another name) on internet

Accepted Answer

Apparently synthetic L-Cysteine is expensive to manufacture, so human hair, duck feathers and pigs' bristles can be used. Whether NOW's L-Cysteine is a product of human hair it is not clear.

Question 4

Is this product vegan?

Accepted Answer

It is most commonly derived from human hair.

ASIN	B000QVEI1A
ASIN	B000QVEI1A
Age Range Description	Adult
Best Sellers Rank	#76,239 in Health ( See Top 100 in Health ) #1,972 in Multiple Vitamin-Mineral Combination Supplements
Brand Name	NOW
Color	tan
Container Type	Bottle
Customer Reviews	4.3 4.3 out of 5 stars (3,822)
Customer reviews	4.3 4.3 out of 5 stars (3,822)
Diet Type	Kosher
Dosage Form	Tablet
Flavor	Unflavored
Global Trade Identification Number	00733739000774, 08720634113335
Is Discontinued By Manufacturer	No
Item Dimensions	6.4 x 6.4 x 11.3 centimeters
Item Form	Tablet
Item Weight	0.4 Pounds
Item model number	0077
Manufacturer	Now foods
Manufacturer	Now foods
Manufacturer Part Number	0077
Material Features	Food Safe
Material Type Free	en_AE
Model Name	77
Model Number	0077
Number of Items	100
Primary Supplement Type	Vitamin B6
Product Benefits	Metabolism Management
Product Dimensions	6.35 x 6.35 x 11.28 cm; 181.44 g
Special Ingredients	Collagen
Specific Uses For Product	Laboratory
UPC	733739000774
Unit Count	100 Count

Now Foods, L-cysteine, 500 Mg, 100 Tablets

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