An essential amino acid, meaning it cannot be produced by the body on its own 1000mg of L-Lysine per tablet Suitable for vegans and vegetarians A building block for protein, lysine is an essential amino acid, meaning that it cannot be produced by the body alone.L-Lysine is the form of lysine our bodies can easily make use of and that is why it is important that we find a dietary source.While meats such as chicken and beef, plus soybeans and pumpkin seeds are sources of L-Lysine, if you feel you may not be getting enough, lysine supplements, such as this Holland & Barrett lysine 1000mg tablet, can help.Because L-Lysine is found in some of its highest levels in meat and dairy produce, it can be particularly challenging for those who do not eat animal products to naturally consume.Suitable for vegans and vegetarians, these L lysine supplements should only be purchased by those over 18 years of age.Why do I need L-Lysine?Proteins are made from long chains of 20 smaller molecules known as amino acids. Working alongside other amino acids, lysine amino acid helps the body to build protein.And why do we need protein? Because it makes up the structure of all cells and tissues in our bodies, including muscle tissue, internal organs, tendons, skin, hair and nails. It is pretty important stuff.A lack of L-Lysine can result in difficulty concentrating, fatigue and irritability. L-lysine for skin and stressLysine’s involvement in collagen production leads researchers to think that it may have positive benefits for the skin.Research suggests that keeping blood L-Lysine levels steady by taking a supplement can even help to reduce the occurrence of cold sores in those prone to the pesky little blighters.Lysine may also aid those suffering with stress and anxiety. Supplementing with this vital substance appears to reduce levels of cortisol, the stress hormone, and may be particularly helpful for those suffering from high levels of stress.L-Lysine versus arginineNot all amino acids are created equal. In fact the amino acid arginine can feed viruses, causing us to fall ill more easily when our immune system is low.L-Lysine is arginine’s arch enemy because it blocks arginine activity. This process can help us to defend against illnesses such as ear infections. It also supports L-Lysine’s ability to tackle cold sores. em Packaging colour and size may vary but product contents is as described. em