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L-cysteine: has any one tried it????

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If I were all of you, I wouldn't worry so much about taking amino acid supplements unless you're a vegetarian. Americans consume more than enough protein everyday and spending money on the supplements is just a waste. Your body only absorbs what it needs and the rest just goes to waste, literally.
 
Hair IS the waste that comes from protein.

Protein is first absorbed by your muscles. Whatever is left of the protein that the muscles don't absorb goes to the hair. That's a large part of how hair is created, that's why it's mostly protein.
 
I agree that the excess protein that is not used by your muscles and for bodily repairs does go to the hair folicles. Since we still consume more protein than is needed for our bodies, taking supplements is a waste of money. Even if you were to take l-cystine, it would be wasted because all amino acids need to be taken at the same time in order to work. Plus, l-cystine is a NON-ESSENTIAL amino acid. This means that the human body produces this on its own. The other non-essential amino acids are arginine, tyrosine, glycine, serine, glutamic acid, aspartic acid, taurine, histidine, proline, alanine and threonine. The following amino acids are the essential amino acids: trytophan, lysine, methionine, phenylalanine, threonine, valine, leucine and isoleucine. These must be obtained from the diet because the body cannot produce them itself. By including plenty of protein in your diet, amino acid supplementation of any kind is unnecessary, thus saving you your hard-earned money. I find it so amazing how these supplement companies try to make money off of us! It's so unethical! Check out this excerpt from "Nutrition Insurance, A Skeptical View," by Alfred E Harper, Ph.D:
"... requirements of individuals for essential nutrients range from about 50% below to 50% above the population average... the amounts of nutrients most people require will be below the RDA, and about half the population should require less than 75% of the RDA." The complete article can be found at www.quackwatch.org/01QuackeryRelatedTopics/DSH/suppinsurance.html There are some other articles of interest on that website. If you want to check the nutrition facts on the various foods you eat, then check out the USDA Natl Nutrient Database for Standard Reference. That website is: www.nal.usda.gov/fnic/cgi-bin/nut_search.pl
 
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I agree that the excess protein that is not used by your muscles and for bodily repairs does go to the hair folicles. Since we still consume more protein than is needed for our bodies, taking supplements is a waste of money. Even if you were to take l-cystine, it would be wasted because all amino acids need to be taken at the same time in order to work. Plus, l-cystine is a NON-ESSENTIAL amino acid. This means that the human body produces this on its own. The other non-essential amino acids are arginine, tyrosine, glycine, serine, glutamic acid, aspartic acid, taurine, histidine, proline, alanine and threonine. The following amino acids are the essential amino acids: trytophan, lysine, methionine, phenylalanine, threonine, valine, leucine and isoleucine. These must be obtained from the diet because the body cannot produce them itself. By including plenty of protein in your diet, amino acid supplementation of any kind is unnecessary, thus saving you your hard-earned money. I find it so amazing how these supplement companies try to make money off of us! It's so unethical! Check out this excerpt from "Nutrition Insurance, A Skeptical View," by Alfred E Harper, Ph.D:
"... requirements of individuals for essential nutrients range from about 50% below to 50% above the population average... the amounts of nutrients most people require will be below the RDA, and about half the population should require less than 75% of the RDA." The complete article can be found at www.quackwatch.org/01QuackeryRelatedTopics/DSH/suppinsurance.html There are some other articles of interest on that website. If you want to check the nutrition facts on the various foods you eat, then check out the USDA Natl Nutrient Database for Standard Reference. That website is: www.nal.usda.gov/fnic/cgi-bin/nut_search.pl

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I'm not debating you or anything, but...it must be working for some people out here and regardless, I'm willing to give it a shot.

Tebby
 
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Boadicea said:
The first one I got was from GNC but DON'T get it from there. Get it from Puritan's Pride because it's cheaper and you get more (buy one get two free).


I just got some today,
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from GNC, what is wrong with it, I paid less then $ 9, for 30 tablets I thought that was kind of high but it was the only place I saw it, and I cant pay online so I have to shop in stores, plus is anyone taking Cysteine without vitamin C, I saw some at GNC for 2 but I did not know I need to take them with Cysteine till now
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, what can happen if I dont take vitamin C, but I do drink about 3 liters of water a day
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ty
Anyway, I've been taking 4 tablets a day (500mgx4=2000mg=2g) and have already gained 1/4 of an inch in under two weeks.

Also, take Vitamin C (take twice as much as you are taking L-cysteine). I took only 3000mg (3g) though. And don't forget to consult your doctor first.

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Nothing is wrong witht he L-cysteine from GNC. You just get less for your dollar. You could also see if the Vitamin Shoppe has it for less. They have stores in some malls and shopping plazas.

Taking Vitamin C along with it keeps it from oxidating more quickly. Meaning you'll keep it in your body for longer and in theory use more of it rather than it going right through you.
 
Is anyone using this... Have you had any success?... I just completed a bottle (two weeks @ 2,00 per day) and noticed that my nails were very hard, couldn't really tell if I had higher growth rate though.
Puritan Pride is having a sale!!
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Buy 1 Get 1 Free $10.90
-or- Buy 2 Get 3 Free
 
I've been taking it, and I believe it has contributed to my hair growth.

It's hard to know for sure since I haven't had a touch up since October 18, but others say my hair is longer.

Tebby
 
I'm not taking l-cysteine esp. since I found out what the ingredients were.
 
I take Building blocks, which is an Amino complex, with L-cysteine in, which has similar amounts, found in Hair Formula 37, which I have found very effective. As I am natural, I am not sure how much my growth is.
 
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Are you serious 1/4 in in 2 wks.

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That is a half an inch a month which is pretty average. What were you getting before?
 
is anyone still using This amino acids, there must be alot of growth from it, I still have some left and it smells, but I want to know if I should keep taking it and buy somemore thanks
 
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Boadicea said:
Anyway, I've been taking 4 tablets a day (500mgx4=2000mg=2g) and have already gained 1/4 of an inch in under two weeks.

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How much growth did u get before??? 1/4 inch in 2 weeks is like getting 1/2 inch in 1 month.
 
Someone asked about the negatives of l-cysteine, I've listed those as well as some positives.

Positives: Studies have shown that the amino acid, L-Cysteine speeds up hair growth and increases hair shaft diameter resulting in fuller hair. L-Cysteine has been reported to facilitate longer hair growth, beyond what is genetically programmed. L-Cysteine also provides potent antioxidant protection to the hair follicle. Users of topical n-acetyl-cysteine have reported hair regrowth.

Negatives: Although 3-4g daily can be taken without side effects, it is not normally necessary to take more than 1g daily. Over 7g of L-cysteine can lead to the formation of L-cystine Kidney stones. High doses of L-cysteine should ideally be taken with a Vitamin C supplement as this may help to prevent the oxidation of L-cysteine to L-cystine.

*HTH*

I'm intrested in taking some of these vitamins too since I've heard nothing but positive responses.
 
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Natori24 said:
I'm not taking l-cysteine esp. since I found out what the ingredients were.

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What are the ingredients, I've been wondering cause I take it.
 
What is cysteine/cystine?

Also known as l-cystine, our research indicates that the source of cysteine is human hair. Cystine is an amino acid needed by humans, which can be produced by the human body. A very small quantity is used in less than 5% of all bread products. Often the hair of third world women is used.

Human hair is rich in two basic amino acid compounds, l-cystine and l-tyrosine, with l-cystine comprising up to 14% of the hair. When hair is dissolved (hydrolyzed) in hydrochloric acid, these compounds can be separated and recovered. L-cystine is actually comprised of two l-cysteine amino acids that are joined together, and when this bond is broken using a hydrolysis reaction, l-cysteine is released. Human hair, while not particularly appetizing, is Kosher, but the source of the hair may pose a problem. Virtually all of the hair used in the production of l-cysteine comes from Asian countries, where both an ample supply and an inexpensive means of collecting it exist. When l-cysteine first came on the market, some concern was expressed that the hair was actually harvested from cadavers. The Shulchan Aruch (Y.D. 349:1) rules that one may not derive any benefit from a dead human body. Although some Rishonim (Rambam and Smag) permit the use of hair, the Shulchan Aruch (Simon 2) follows the position of the Ramban and the Rashba and extends the prohibition to this material as well. Fortunately, however, no one has ever been able to substantiate the use of hair from this source in the production of l-cysteine, and the consensus is to discount this concern.

Hair, however, is not the only commercial source of l-cysteine. Poultry feathers also contain substantial amounts of l-cystine, and are often processed in the same manner as hair for this purpose. While seemingly free of esoteric concerns of Avodah Zarah and posthumous benefit, it has been argued that feathers pose a more conventional Kashrus concern. When processing poultry, the best way to loosen feathers for easy removal is by dipping the slaughtered birds in boiling water. Such a process is not permitted for Kosher poultry, since one may not cook a bird until it is has been soaked and salted to remove the blood (Y.D. 68:10), and we must, therefore, often put up with more feathers on our Kosher birds than we would prefer. Non-Kosher poultry plants, however, have no such restrictions, and routinely scald their non-Kosher, bloody birds in boiling water before removing their feathers. While we may have no interest in non-Kosher poultry, it has been argued that we should be concerned with the feathers that have been cooked together with non-Kosher poultry and their blood. We may not eat feathers, but we do make l-cysteine from them, thus raising a potential Kashrus concern. Fortunately, however, given the manner in which the feathers are processed to produce l-cysteine, this matter poses no Halachic concern. Since the feathers are dissolved in hydrochloric acid and are rendered entirely inedible, any non-Kosher flavor or blood that may have been absorbed into them is considered Halachically insignificant. While many authorities do prohibit non-Kosher food that had been rendered inedible if it is subsequently returned to an edible state (e.g., gelatin made from non-Kosher meat sources), this would not pose a concern in this situation. In our case, the feathers were always Kosher - the only concern is the possible absorption of blood and non-Kosher flavor into them. Since the subsequent recovery of feathers into an edible item is not concerned with the blood or the flavor, these remain Halachically insignificant [see Igros Moshe (Y.D. II:23) in his discussion of blood that may be found on Kosher hides that are processed into gelatin.]
 
@Pooh: un-aided, my hair grows between 1/4 inch and 1/2 inch a month. I usually get the latter in the warmer months. However, I gained 1/4 of an inch in under two weeks, allowing me to reach over 1/2 inches before the end of the month.

And yes, it does have a distinctive odor to it. It may linger on your breath for a few days after you stop taking it.
 
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ANaturalBrotha said:
I know you like to think L-cysteine dont stink but lean alittle bit closer and see that it smells like Boo boo boo! very bad
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[/ QUOTE ]lmao i was just singing this in my head and then i see your post... lol
 
I use Puritan's Pride amino acid complex. GREAT stuff. I've growm so much hair lately that my coworkers have commented on how long it's gotten.

A
 
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