Amino acids: what are amino acids and what do they do?

Amino acids…. A word I know from the world of sports and sports nutrition. Not that I know that world personally, don’t get me wrong. If you search for “lose weight without doing any work” (as I did) you’ll find, for example, “weight loss shakes” on various sports nutrition sites. Often they also offer amino acids in supplement form. These amino acids are building blocks of protein and muscle tissue. They are extremely important if you have an active lifestyle, essential for tissue repair and influencing the functions of organs, glands, tendons and veins. In this blog, I will try to explain why amino acids are so important and how Skin for Skin offers amino acids to the body through the collagen supplement.

What are amino acids?

Amino acids can be seen as the building blocks of proteins. Your body breaks down proteins into amino acids and uses them again for various body processes. Of all the amino acids you take in, a quarter is burnt as energy or excreted. The rest is used to produce the body’s own proteins, which the body needs to function properly. Collagen is one of the most important proteins in our body, remember?

What function do amino acids have?

Amino acids play an important rol in:

  • The production of strong connective tissue 
  • Wound healing and recovery
  • The transport and storage of nutrients
  • The production of new cells
  • The digestion
  • Energy production
  • The transfer of incentives
  • Building and maintaining your muscles
  • The growth of healthy bones

What kind of amino acids are there?

There are 22 different types of basic amino acids that your body needs. They can be divided into three categories:

  • Non essential amino acids. Your body can produce these on its own.
  • Semi-essential amino acids. Sometimes your body does not produce enough of these to meet your needs. For example, if you have a medical condition or after strenuous exercise.
  • Essential amino acids. Your body cannot produce these and you obtain them from food or supplements.

Non essential amino acids.

Semi essential amino acids.

Essential amino acids.

Aspartic acidAspartineIsoleucin
Cysteine GlutamineLeucine
Glutamic acid Serine Methionine
Tyrosine ProlineFenylalanine
Hydroxyproline Threonine

GOOD NEWS: Skin for Skin collagen contains all the above amino acids.

Wat is the function of amino acids for the skin?

Amino acids are already naturally present in your skin. Amino acids are essential for your skin. They moisturise and ensure healthy, supple and resilient skin. They are the building blocks of proteins and peptides. They help the natural defence system, protect and strengthen the skin and reduce signs of skin ageing.

One of the most important building blocks of our skin is collagen. Collagen is an extremely important protein and, like other proteins, consists of amino acids. Collagen provides strength and elasticity to the connective tissues in our body, including our skin. During the ageing process, cell division in our body slows down and collagen fibres become more rigid. They lose their elasticity. This happens in our skin as well as in our joints, bones and veins. Maintaining strong collagen is therefore not only important for your youthful appearance. Collagen plays a vital role throughout your body, which is why it is such a valuable protein to pay extra attention to.

Collagen exists out of amino acids
Collagen is a very important skin building block; it gives the skin firmness and elasticity. Collagen is a protein and therefore composed of amino acids.

Collagen = amino acids!

Collagen is a very important protein in our body! Like all other proteins, collagen is made up of amino acids. So, in order to produce new collagen, you need amino acids. Skin for Skin collagen is broken down by the stomach into amino acids, which are used by the fibroblasts to create new collagen. Our collagen contains ALL the amino acids and thus helps in various body processes, not only skin care!

When do you need extra amino acids?

You may have an additional need for amino acids in the following cases:

  • If you want to strengthen your connective tissue
  • You have a cold sore
  • You want to lose weight  
  • If you exercise intensively
  • When you have sleep problems

Strengthen connective tissue

Collagen gives the connective tissue strength and elasticity. After the age of 25, the body produces less and less collagen, which causes the firmness to disappear and ultimately leads to wrinkles. A collagen fibre consists of collagen fibrils, which in turn consist of several intertwined chains of mainly the amino acids glycine, proline and hydroxyproline. The fibroblast combines these amino acids to produce pro-collagen. The pro-collagen is then transported out of the fibroblast into the extracellular space. Only there are the collagen fibres formed, which are a very important part of the body’s connective tissue. Skin for Skin collagen is broken down by the stomach into amino acids, which are then used by the fibroblasts to create new collagen.

the build-up of collagen.
The amino acids glycine, proline and hydroxyproline are very important for making collagen.

Lysine and a cold sore

Lysine is not only important for the production of collagen and strong connective tissue, but also for the production of antibodies. Because of these antiviral properties, lysine is also used as a remedy against a cold sore, for example. You can use lysine to prevent and treat a cold sore. Lysine is also found in the amino acid profile of Skin for Skin collagen.

Losing weight

You lose weight when you consume fewer calories than you burn. Eating protein-rich foods with amino acids can contribute to this because they make you feel full faster. Proteins and amino acids also contribute to maintaining muscle mass while losing weight. Amino acids are also important for the production of the body’s own growth hormone, which plays a role in fat burning.

Exercise and amino acids?
Amino acids and exercise: what do the two have to do with each other?


If you are doing strength training or endurance sports, your body needs more amino acids. You can get enough of them with a healthy and varied diet. Some athletes also use protein shakes and BCAAs: branded chain amino acids. BCAAs contain the three essential amino acids leucine, isoleucine and valine. Because these amino acids support the building and repair of muscle tissue, they can contribute to faster recovery after a major sports performance.

Sleep issues

Do you often have trouble falling asleep? This could be due to a lack of amino acids. Amino acids are important for sleep. Tryptophan, for example, is important for the production of melatonin, the hormone that signals your body to go to sleep. Glutamine can also contribute to your rest. Glutamine plays a role in reducing stress and restlessness. Do you feel you are unable to fall asleep due to a lack of amino acids? This can be caused by the following:

  • Your diet contains too little amino acids.
  • You eat a lot of fructose-rich food. Fructose and glucose are mainly found in sweet convenience foods. Fructose binds tryptophan, which reduces your melatonin intake. 
  • Your gastrointestinal function is not working optimally. Our digestive system ensures that foreign substances are converted into usable substances, including amino acids. If, for example, you suffer from a shortage of gastric acid, this can lead to a shortage of amino acids. 
What food contains amino acids?
What contains amino acids?

What contains amino acids?

The essential amino acids that your body cannot make itself can be obtained by eating enough protein from different sources. Do you want to get all the essential amino acids? It is important to eat a varied diet, because different proteins contain different amino acids. For example, legumes are rich in lysine and poor in methionine. The opposite is true of cereals. Adequate amounts of amino acids can be obtained from both animal and plant sources. Animal sources often contain more amino acids than vegetable sources. The following products ensure that you get enough: 

Animal sources:

  • Meat: such as chicken breast, beef or pork
  • Fish: such as plaice, salmon or tuna.
  • Dairy: such as quark, cheese, milk or yoghurt
  • Eggs

Plantbasesdd sources:

  • Beans
  • Lentils and (chick) peas
  • Nuts and seeds
  • Tempeh
  • Rice
  • wheat products
  • Avocado
  • mushrooms

Skin for Skin collagen is broken down by the stomach into amino acids, which are used by fibroblasts to create new collagen. Collagen plays a vital role in the whole body, which is why it is such a valuable protein to pay extra attention to.

When to use supplements?

Do you have food allergies or dietary restrictions that prevent you from eating certain foods? If so, your protein and amino acid intake may be insufficient. Do you want to supplement these deficiencies? Then consider the Skin for Skin collagen supplement. You can get all the amino acids you need in an easy, user-friendly way!

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