Deine Haut als Spiegel Deiner Gesundheit: So pflegst Du sie von innen heraus

Your skin as a mirror of your health: This is how you care for it from the inside out

Your daily routine consists of cleansing, serum, care cream and make-up. You pay conscious attention to your choice of cosmetics and carefully adapt them to your individual skin structure. But skin care from the inside? How is that supposed to work?

Our skin is influenced by many different factors. In addition to external environmental and weather influences, internal processes also have a major impact on the appearance of your skin. If you are overtired, shadows appear under your eyes. If you drink too little, your skin feels dry and loses its radiance. If you feel completely comfortable and rested, your skin will have a fresh glow. Psychological and organic processes are crucial for a healthy complexion.

Connection between intestinal health and skin

Skin care and gut health

Intestinal health is an essential prerequisite for beautiful skin. Many skin diseases result from a disturbed inner balance and can have organic causes (in addition to psychological ones). The intestine is a sensitive area that is closely related to the outer skin. The largest organ in terms of area, our skin, is directly connected to the digestive tract. Through the lips it goes seamlessly inward to the mucous membranes of the mouth down to the anus. The intestine essentially mirrors the outer, closed shell of the skin in its continuous digestive system. Approximately 1.8 square meters of outer skin is juxtaposed with up to eight meters of intestine with an unfolded area of ​​around 30 square meters.

While the outer skin is made up of several layers and, above all, has a protective function by separating the body from the environment, the mucous membrane of the intestine is more permeable. Their tasks are to exchange nutrients and remove waste products. The natural protective barrier of the outer skin is therefore more robust and the mucous membranes of the intestine are more sensitive.

Both areas, the inner intestine and the outer skin, are populated by microorganisms. They support the skin functions and are very broad. Bacteria, yeast and fungi form a community. The formation of this skin and intestinal flora, which is vital for us, is extremely diverse and individual. If disorders occur due to poor nutrition, illnesses, environmental influences or aggressive cosmetics, this manifests itself in visible and noticeable damage to the skin, stomach pain, flatulence or indigestion.

Disturbing substances can occur in food and cosmetics. Often they are not that far apart or even identical. These include, for example, synthetically produced:

  • Antibiotics
  • Emulsifiers
  • Dyes
  • Fragrances
  • Preservatives
  • Microplastics and substances such as phthalates (plasticizers)

There are also substances such as:

  • alcohol
  • gluten
  • milk protein
  • nicotine
  • Residues of pesticides and fertilizers
  • sweeteners and sugar

These attack the natural barriers, damage the skin and intestinal flora and can trigger reactions such as itching and redness, but also allergies such as neurodermatitis. An unhealthy lifestyle with little exercise, too little sleep and increased stress levels has a worsening effect.

The intestine and immune system are closely related. The intestine produces a large proportion of the antibodies that fight off and destroy pathogens. The intestinal flora ensures that the body is supplied with vitamins, breaks down toxins and largely inhibits unwanted bacterial growth. Hormones If disorders and inflammatory processes occur, the immune system can be weakened and you become ill. The causes can be varied and should be clarified medically.

The intestine only inadequately differentiates between its own positive bacteria and pathogens. Excessive inflammatory reactions occur, which can not only be detected in the blood count, but can also lead to allergic skin reactions and diseases such as acne, neurodermatitis, rosacea or psoriasis or can manifest themselves in an unbalanced complexion.

Internal factors:

Skin diseases such as neurodermatitis, rosacea, psoriasis or even severe acne can be triggered by different causes and reasons. Seeing a doctor can provide you with information in individual cases. In any case, the intestines are also affected. If the composition of the intestinal flora changes, the balance is disturbed, pathogens enter the body and are only inadequately defended against.

The skin's own immune system and its balance also get out of control. This leads to incorrect reactions such as fighting against the body's own cells. You feel tension in the skin, sebum production changes, redness and irritation occur. The under-function of the intestinal barrier leads to an over-function, which manifests itself in inflammation throughout the body and also in the skin.

Woman with skin problems

Acne is one of the most common skin diseases. It can occur temporarily during puberty, pregnancy or menopause and can be hormonally related to other factors. The face, décolleté and upper back area are affected, and sometimes also the upper arms and shoulders. Inflammatory pustules, painful nodules and even thickened papules in varying degrees can be seen. Sebum metabolism and keratinization are severely disturbed. The causes do not always lie in changes in the hormonal balance. Other factors can also cause acne. This includes:

  • aggressive cosmetics
  • wrong diet
  • Contact reactions to elements such as chlorine
  • Medication
  • stress
  • UV light

For the long-term treatment of acne, attention should be paid to a healthy, fiber-rich diet, sufficient exercise and sleep, as well as stress management together with appropriate skin care. In this way, the balance in the intestine can be gradually restored and the complexion cleared.

Neurodermatitis has become more common in all age groups. The pathological change in the skin manifests itself in red, scaly, sometimes weeping, sometimes migrating eczema, which is associated with severe itching. The attacked areas are very dry. They can occur anywhere on the body. Neurodermatitis appears primarily in the mouth and cheek area of ​​the face, on the neck, on the arms and in the bends of the arms and knees.

The disease is also associated with a disruption of the skin and intestinal flora. The bacterial composition of the colonization changes. An imbalance occurs on the skin and in the intestines. This weakens the immune system at the same time. The result is flare-ups of inflammation.

Here too, the factors must be considered as a whole. With a balanced diet, exercise, sleep and avoiding stress, you can contribute to a healthy intestinal and skin flora, strengthen your immune system and create inner balance. The adjustment of your cosmetic routine is also added.

Many factors can also cause the malfunction in psoriasis. The intestinal flora, in turn, plays a crucial role in the process. Wrong eating habits, an unbalanced day-night rhythm and stress can be triggering factors for an inherited predisposition.

The chronic disease spreads throughout the body and can affect joints as well as the heart. On the skin it appears as redness or as scaly areas on the scalp, elbows, knuckles or knees. The activity of various immune cells is disrupted.

The body's own skin cells are attacked. Psoriasis is an autoimmune disease - a disease that turns against itself. Inflammatory processes can be observed in the intestines, other areas and on the skin. In order to stabilize the body and rebuild the protective barriers, it is advisable to change cosmetics, diet and lifestyle.

The connections between the development of rosacea are very similar. The appearance of the disease, which often occurs between the ages of 40 and 50 and worsens with age, ranges from a reddish discoloration to the formation of scaly areas to pustules and swellings with a proliferative tendency.

Application skin care

The causes can lie in many areas. The reasons for the outbreak are often increased UV radiation, weather changes with temperature changes, and irritants in food and cosmetics. Disturbances in the balance of the intestinal flora with an overgrowth of the small intestinal mucosa have been medically proven. The natural protective layer of the outer skin is weakened. Digestive problems are often accompanied by depressive moods. A healthy lifestyle with sufficient sleep and exercise as well as an adapted diet avoiding alcohol, coffee, nicotine and individually adjusted skin care have a positive effect on the course.

Gut health is based on four crucial factors. They also serve to skin skin from the inside. This includes diet, exercise, getting enough sleep and reducing stress. A healthy lifestyle has a visible effect on your complexion and can help you better deal with flare-ups and challenges. Your skin structure will change significantly if you pay attention to a conscious diet, enough exercise in the fresh air, appropriate rest and sleep times and well-thought-out stress management. Balancing cosmetics that match your skin type are also added.


Woman eats healthy

Can you eat well? In fact, your diet has a big impact on gut health and skin. In order for the protective functions to be maintained, balancing processes to take place and the skin to regenerate, vitamins, minerals, fats, moisture and antioxidants are needed. High-quality cosmetics supply these active ingredients from outside. The outer layer of skin in particular can be cared for in this way.

However, the lower layers of skin, the intestines and the body's own processes are nourished by the food you consume. If you eat a healthy and varied diet, if your food is wholesome and contains vitamins, minerals and healthy fats, then this will be reflected in your skin, your healthy intestines and your general well-being. You should also make sure you drink enough fluids. Two liters of mineral water a day makes a big difference.

While nicotine, excessive coffee and alcohol consumption harm the body, healthy nutrition builds up, gives energy and supports vital functions. The important components of a skin-friendly diet include:

  • Antioxidants counteract free radicals and thus prevent cell damage; These include so-called secondary plant substances, such as those found in fresh fruit and vegetables and also in green tea
  • Fiber, which cleanses the intestines, promotes digestion, can be converted into energy-rich compounds that have a positive effect on the intestinal flora; These include fruits and vegetables, nuts, legumes, oats and cereal flakes
  • healthy fats and oils Omega-3 fatty acids, which should be in balance with Omega-6 fatty acids; these are found in microalgae, linseed, hemp and chia seeds
  • Vitamins are contained in fresh fruit and vegetables. You can also find minerals in fruit and vegetables, especially lamb's lettuce, kale and broccoli, apricots, mushrooms and eggs contain minerals

If you want a healthy diet for beautiful skin, eat a vegetable and fruit-based diet, avoid fast food and sugary sweets as well as all irritants such as coffee, alcohol and nicotine. Carrots, cabbage, peppers and citrus fruits, tomatoes, walnuts, avocado, oatmeal, lentils and berries should be on your menu often.


Woman and man jogging

If you keep moving, you will feel it all over your body. Exercise is also important for your intestines. Sitting so much makes him lethargic. If you do sport, you stimulate digestion, your circulation gets going, organs, tissues and skin are better supplied with blood.

Processes stimulated by sport strengthen resistance. This also includes the protective barriers of the mucous membranes in the intestine and the outer skin. Intestinal and skin flora revitalize. Sport and exercise are important factors when it comes to stress and balance. They are the counterpart to a predominantly sedentary activity and also support you mentally. As you move, happiness hormones are released. These not only temporarily lift your mood, but also strengthen your psychological resistance.

Your breath plays a key role in this. It changes under stress. You breathe deeper and more consciously. This is how your organs are supplied with oxygen. Since everything in your organism is connected to everything else, you feel how your body and your attitude towards life change positively: you sleep better, your appetite changes, you find peace more easily. This is also reflected in the appearance of your skin. However, if you like swimming, you should be careful: excessively chlorinated water attacks the skin's natural protective acid mantle. Sustainable care to compensate is important here.


Lack of sleep is the cause of many serious illnesses. Our body needs enough sleep to regenerate itself. If you lack enough restful sleep, you will feel exhausted and lacking in energy. You can also see this in your skin: it looks pale and dark shadows form under your eyes. Your intestines are also affected. Continuous lack of sleep can have serious consequences. Not only do you become noticeably less focused and are more easily disturbed, your intestinal health also suffers. If intestinal problems have arisen, this in turn leads to problems falling asleep, because the intestines are involved in the production of the hormone that you need.

Healthy, relaxing sleep depends on many factors. The blue light from cell phones and laptops is not good for falling asleep. You should turn off technical devices about an hour before you go to bed. 6 to 9 hours of sleep are recommended. If you regularly go to bed at a certain time, it will make the process of falling asleep easier. Make sure you have a good mattress and make sure the room is not too warm. So nothing stands in the way of your beauty sleep.


Stressed woman at work

Stress is part of everyday life. The vital, short-term stress that encourages top performance, ensures quick decisions and concentrates all energies into power, has become a chronic companion. This has many negative consequences and can lead not only to temporary overload, but also to long-term health damage. If you suffer from a skin disease such as neurodermatitis, you are familiar with the attacks that occur due to negative stress.

Stress affects the intestinal flora, puts strain on the organism and is also reflected in the appearance of the skin. Pale pallor and circulatory problems occur, as do hot flashes. Stress makes you susceptible to illness because your resistance weakens. This also applies to the protective barriers of the skin and intestines. An increased need for vitamins and minerals arises, which, if the diet is inadequate, quickly becomes a deficiency with noticeable effects.

Stress cannot be eliminated in your professional life, but you can learn to deal with it and reduce it. You don't have to be present on your cell phone 24/7. Organize your time and take breaks. To face psychological challenges, you can work on your calmness. In addition to a structured daily routine, a healthy diet and exercise in the fresh air, meditation and yoga exercises contribute a lot to this. They help you to focus, find your center and achieve inner balance.

Many connections are addressed when meditating. They help stress to be reduced and your body to relax. Your organs are supplied with more oxygen by breathing evenly. This affects the skin and intestines. You can feel it as blood circulation increases and your digestion normalizes.

Relaxed woman meditating

Zkin Lab from the outside

Skin care should be tailored to the individual. Just as the intestinal and skin flora are structured individually, the needs are also different. While some people suffer from dry skin, others are plagued by blemishes and oily areas. Zkin Lab does not offer skin care for everyone, but rather tests what your skin needs in advance.

Only after the analysis are the substances that make up your skin's care routine put together. The aim is to maintain the biological balance and strengthen the resistance of your skin. That's why Zkin Lab avoids microplastics etc., avoids irritants and fragrances and uses the body's own, natural and vegan ingredients. The composition is transparent so that you know exactly what your skin is being cared for.