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Collagen has been a much-discussed topic for some time - in skin care, nutritional supplements and medicine. In fact, it is the most abundant structural protein in the human body and plays a central role in skin, joints, connective tissue and bones.
In this article you will find out why collagen is so important, when and why the body's own production decreases and how a targeted supplement can provide support.
Table of contents
- What is collagen - and why is it so important?
- How is collagen formed in the body? - And why does it decrease?
- The 5 most important collagen types at a glance
- Does collagen really help? - Important areas of application for collagen
- Where is collagen found? - Foods with collagen
- Collagen production - animal or plant-based?
- Zimply Glow - Collagen capsules from Zimply Natural
- Tips for taking collagen
- FAQs about collagen
1 What is collagen - and why is it so important?
Collagen is a key structural protein in the human body - responsible for the strength and elasticity of many tissues. It forms the basic framework of skin, tendons, ligaments, bones and connective tissue and is therefore essential for the body's mechanical stability and resilience.
Despite its crucial function, collagen is often underestimated - and its decline has far-reaching consequences for health, Mobility and external appearance. In this section we look at what exactly collagen is, where it is found in the body and why it plays such an important role in various organ systems.
Definition: Structural protein with central function
Collagen belongs to the group of scleroproteins - long-chain proteins with a fiber-like structure. It is produced in specialized cells (primarily fibroblasts) and forms collagen fibres that give tissue strength and stability. As the main structural component of connective and supporting tissue, collagen is a functional cornerstone of almost all mechanically stressed structures in the body.
Collagen in the body: where is it found?
Collagen is contained in numerous tissues - most prominently in Skintendons, ligaments, cartilage, bones, blood vessels and teeth. Organs and vessel walls also contain collagen, which ensures elasticity and structural integrity. The collagen content is particularly high in Musculoskeletal system and in the skin - both tissues that have to withstand tensile or compressive loads.
Why is collagen so important for skin, joints and connective tissue?
As a protein that is both tensile and elastic, collagen ensures the resilience and dimensional stability of tissues. In the skin, it supports firmness, reduces the formation of wrinkles and helps to renew the extracellular matrix. In tendons, ligaments and cartilage, it enables mechanical resilience and cushioning. If there is a deficiency, the tissue loses structure - which manifests itself in the form of skin ageing, Joint complaints or connective tissue weakness.
About 30% proportion: The most abundant protein in the body
Collagen makes up around a third of the total protein content in the human body - making it by far the most abundant protein. It is present in different types, which fulfill different tasks depending on the type of tissue. Its central role in building and maintaining tissue structures makes collagen a key factor for healthy skin, functioning joints and resilient connective tissue.
2 How is collagen formed in the body? - And why does it decrease?
Collagen is produced by the body itself - provided that all the necessary building blocks and micronutrients are present. The process is complex, well-regulated and closely linked to cell health and metabolic activity. However, after a certain age, synthesis slows down noticeably. In this section, we explain how collagen is formed, which factors influence its formation - and why it decreases significantly with increasing age.
Collagen synthesis: How the body produces collagen
Collagen is mainly found in Fibroblasts These are connective tissue cells that synthesize long-chain collagen molecules from individual amino acids. The amino acids Glycine, Proline and Hydroxyproline. After intracellular formation, these precursor molecules are released from the cell where they are assembled into stable collagen fibers.
Through Cross-linking collagen structures are formed which, depending on the type, have tensile strength, elasticity or supporting properties. The decisive factor here is not only the pure protein supply, but also the presence of certain micronutrients that are necessary as cofactors for synthesis.
Important nutrients for collagen production
In order for the body to be able to produce functional collagen, it needs a sufficient supply of the following micronutrients:
- Vitamin C: Essential for the hydroxylation of proline and lysine - a critical step in collagen formation
- ZincImportant for cell division, protein synthesis and enzyme activity
- CopperInvolved in the cross-linking of collagen fibers (lysyl oxidase)
- SiliconSupports the stabilization of connective tissue and collagen matrix
- IronCofactor for hydroxylation enzymes, important for the collagen structure
A deficiency in just one of these nutrients can measurably disrupt collagen formation.
Why and when does collagen formation decrease with age?
Collagen synthesis is age-dependent. Already from the 25 years of age the cell metabolism in the fibroblasts slows down - this directly affects the formation of new collagen fibers. At the same time, oxidative stress increases, pro-inflammatory processes increase and enzymes such as Collagenases break down existing collagen more quickly.
Around the 40 years of age the collagen content in the skin is already on average around up to 20 % reduced. The visible consequences: less elasticity, deeper wrinkles, dry skin - and functionally also less resilience of tendons, cartilage and joints.
What happens if there is too little collagen?
A lack of collagen affects several systems at the same time:
- Skin: Wrinkles, loss of elasticity, reduced regeneration
- Joints & cartilageFriction, reduced buffer function, pain under load
- Connective tissueSagging, cellulite, weak vascular walls
- Bones & TeethStructural weakening, greater susceptibility to damage
Collagen deficiency becomes particularly critical when stress factors such as Anti-StressUV radiation, Smoking or sugar metabolism disorders - these further accelerate the breakdown.
3. overview of the 5 most important collagen types
Not all collagen is the same. The human body produces a total of at least 28 different collagen variants - five of which make up over 90 % of the total amount of collagen. Each type fulfills specific tasks, depending on the tissue in which it is found. This section gives you an overview of the five most important types of collagen and their respective functions.
Type I: Stability for skin, bones and tendons
Type I is the most frequently occurring collagen in the human body - it makes up around 90 % of the total collagen. It forms extremely strong fibers and is the main component of Skintendons, ligaments, bones and teeth. It provides firmness and elasticity in the skin and structural resilience in the musculoskeletal system.
Type II: Elasticity for cartilage and joints
Type II is mainly found in the hyaline cartilagein joints, the spine and the vitreous body of the eye. It forms a finer fibril network than type I and gives cartilage tissue the necessary Elasticity and shock absorption. Type II plays a central role in the treatment of Osteoarthritis and is used specifically in collagen preparations for joints.
Type III: Structure for organs and vessels
Type III often occurs together with type I, but is particularly common in soft connective tissue present - for example in Vascular walls, internal organs, lungs and skin. There it provides Elastic stability and structural cohesion. Vascular or organ connective tissue weaknesses often occur in type III collagen disorders.
Type IV: Support function in cell membranes
Type IV does not form fibers, but a fine network - especially in Basement membranes. These surround muscle, nerve and epithelial cells, among others. Type IV provides the Filter and barrier function of these cell layers, especially in the kidneys, skin and lungs.
Type V: Fine structures in tissue (e.g. placenta, hair)
Type V occurs in small quantities, but is functionally important. It regulates the Type I fibril formation and plays a role in the development of Placenta, cornea and Hair structure. Type V is also actively involved in embryonic tissue.
4. does collagen really help? - Important areas of application for collagen
Collagen preparations are now an integral part of numerous health and care concepts. Whether to support the skin, joints or connective tissue - the structural protein is said to help cushion ageing processes and improve the mechanical resilience of various tissues. But what is proven, what is plausible - and what remains wishful thinking? In this section, we show in which fields of application collagen can be used in a scientifically sound manner - and where its limits lie.
Collagen for skin ageing and wrinkles: Prevention and smoothing
One of the main reasons for visible skin ageing is the loss of structural proteins such as collagen and elastin. The collagen fibers in the dermis give the skin its volume, elasticity and resilience. Endogenous collagen production decreases from the age of 25 - around the age of 40 up to 20 % of the skin collagen be lost.
Studies with hydrolyzed collagen show that a regular intake of 2,5-10 g täpossible over a period of at least 8-12 weeks to significant improvements in Skin elasticity, hydration and wrinkle depth can lead to a decrease in blood pressure. The effect is presumably caused by a Stimulation of the fibroblasts for the body's own collagen synthesis - triggered by peptide fragments that enter the bloodstream after digestion.
The effect is particularly visible in women over 35 with the onset of sagging skin, in combination with Vitamin C and other cofactor-dependent micronutrients.
Articular cartilage consists mainly of type II collagen, which plays a supporting role in the Elastic stability and pressure distribution takes up. With increasing strain, age or degenerative diseases such as osteoarthritis, the cartilage matrix is broken down - often faster than it can be regenerated.
Studies show that above all Non-denatured type II collagen (UC-II®) for joint complaints immunomodulating and leads to a Reduction of pain, stiffness and restricted movement especially in the knee joint. Hydrolyzed collagen (types I and II) in combination with exercise also shows potential regeneration of the cartilage matrixby Cartilage cells to form new matrix components stimulates.
These effects do not occur overnight, but clinically relevant improvements have been documented when taken consistently over several months.
Tendons and ligaments consist of 60-85 % collagen fibers, which they Tensile strength and resilient make. Also in the extracellular matrix of the skeletal muscles collagen plays an important role in power transmission and structure. During intensive sporting activity, micro-injuries often occur in these tissues - with an increased risk of overuse injuries.
First studies with Collagen peptides in combination with training show that the Improved tendon stiffnesswhich Accelerated regeneration and the Shorter convalescence after injuries can be used. The Strength development in older adults can be supported if collagen is combined with a progressive training stimulus. This is particularly relevant in sports with a high repetitive load - such as running, tennis, strength training or gymnastics.
Collagen against cellulite and for connective tissue strength: collagen as a stabilizer
Tendons and ligaments consist of 60-85 % collagen fibers, which they Tensile strength and resilient make. Also in the extracellular matrix of the skeletal muscles collagen plays an important role in power transmission and structure. During intensive sporting activity, micro-injuries often occur in these tissues - with an increased risk of overuse injuries.
First studies with Collagen peptides in combination with training show that the Improved tendon stiffnesswhich Accelerated regeneration and the Shorter convalescence after injuries can be used. The Strength development in older adults can be supported if collagen is combined with a progressive training stimulus. This is particularly relevant in sports with a high repetitive load - such as running, tennis, strength training or gymnastics.
Collagen for nails and hair: built up by structural proteins
Nails and hair also benefit from a healthy collagen metabolism - indirectly via the supply of the Nail matrix and the Hair root. Collagen itself is not a major component of nails or hair (that is keratin), but it is promotes microcirculationsupplies the growth zones with amino acids and can stabilize the structure by strengthening the surrounding tissue.
Some smaller studies show that taking collagen Less nail breakage, faster growth and Reduced tendency to split ends. In the case of hair more shine and better structure However, larger, controlled studies are still rare in this area.
Limits to the effect: what collagen cannot do
Collagen is not a panacea. It can be structurally effectivebut it does not replace therapy, training or an adequate supply of other essential nutrients. The effect occurs not immediatelyrequires patience and constant use - often over many weeks or months.
Unrealistic promises such as "freedom from wrinkles in 14 days" or "joint healing through collagen alone" are scientifically untenable. However, those who use collagen in a targeted manner - and take individual conditions into account - can demonstrable, physiologically justifiable effects achieve.
5 Where is collagen found? - Foods with collagen
Although the body can produce collagen itself, it is dependent on certain amino acids and micronutrients. Collagen can also be obtained directly from the diet, at least from animal sources. In this section, you will find out which foods are particularly rich in collagen, which support the body's own production - and what you should bear in mind.
Collagen-rich foods: bone broth, fish skin, gelatine
Natural sources of collagen are found almost exclusively in animal productsespecially in parts rich in connective tissue. Particularly worth mentioning are:
- Bone brothLong-cooked broth made from bones, tendons and cartilage provides collagen, gelatine and minerals in high concentrations.
- Fish skin & bonesContains type I collagen - particularly bioavailable.
- GelatinePartially hydrolyzed collagen, e.g. from pork rind.
- Pork rinds, chicken skin, oxtail: Classic sources in traditional dishes.
Important: Meat itself (e.g. muscle meat) contains contain little collagen. The highest quantities are found in Connective tissue structureswhich are often no longer consumed today.
Foods that promote collagen formation
The body needs various nutrients to synthesize collagen from amino acids. These include
- Vitamin C: Essential for the hydroxylation of proline and lysine - e.g. in peppers, broccoli, sea buckthorn, citrus fruits
- ZincCentral for cell division and enzyme function - e.g. in pumpkin seeds, lentils, oatmeal
- CopperCofactor for the cross-linking of collagen fibers - e.g. in nuts, legumes, cocoa
- SiliconSupports connective tissue stability - e.g. in millet, oats, nettle tea
- Iron: Cofactor necessary for collagen formation - e.g. in meat, amaranth, spinach
Without these cofactors, collagen synthesis is slowed down or defective - even with a high protein intake.
Micronutrients as cofactors: vitamin C, zinc, copper
These three nutrients are considered the central cofactors collagen synthesis:
- Vitamin CWithout vitamin C, the body cannot form functional collagen - a deficiency results in unstable fibers (as in scurvy).
- ZincRegulates the activity of enzymes involved in collagen and DNA synthesis.
- Copper: Enables the Cross-linking of collagen fibrilsThis results in tensile strength and structural stability.
A deficiency in just one of these micronutrients can block the entire collagen build-up process - even with an optimal protein intake.
How diet and lifestyle influence collagen production
Conducive are:
- A nutrient-rich, unprocessed diet
- High intake of antioxidant plant substances
- Regular physical exercise
- Adequate fluid intake and quality of sleep
Obstacles are:
- Sugar (accelerates glycation of collagen fibers)
- UV radiation (promotes enzymatic collagen degradation)
- Smoking and alcohol (oxidative stress, inflammatory processes)
- Chronic stress (increased collagenase activity)
Collagen cannot therefore be thought of in isolation - the totality of diet, lifestyle and cell metabolism determines how effectively the body forms and maintains structural proteins.
6. collagen production - animal or plant-based?
Collagen supplements are available in different forms and qualities - depending on the raw material, manufacturing process and intended use. The choice of source has an influence on bioavailability, composition and acceptance. At the same time, the question arises: Is there any plant-based or vegetarian collagen at all? In this section you will find out how collagen is produced industrially, how the sources differ - and what "vegan collagen" really contains.
How is collagen produced? (beef, fish, chicken)
Industrially, collagen is produced almost exclusively from animal tissue mostly obtained from by-products of the food industry. The most common sources are
- Bovine hides, bones and tendons (Type I, partly Type III)
- Fish skin and scales (Type I, usually highly bioavailable)
- Chicken cartilage (especially type II for joint preparations)
After the enzymatic hydrolysis so-called Collagen hydrolyzatecollagen that has already been broken down into peptides. This form is particularly soluble, stable and is efficiently absorbed in the intestine. The end product is tasteless, contains specific amino acid profiles (primarily glycine, proline, hydroxyproline) and is suitable for powder, capsules or ampoules.
Is there vegetarian or vegan collagen?
For a long time, collagen was considered to be exclusively animal-based - after all, it only occurs naturally in the animal organism. However, thanks to advances in Biotechnology and fermentation are now also Vegetarian and vegan collagen alternatives possible.
Vegetarian collagen is a product that is either:
- biotechnologically produced, structurally identical collagen contain
- or specifically composed Collagen peptide analogs on a plant or microbial basis
These products either deliver directly functional collagen components or specifically support the the body's own collagen formation. They come without animal ingredients and are ideal for people who want to avoid animal collagen - for ethical, religious or nutritional reasons, for example.
What are vegan collagen boosters - and what can they do?
Many plant-based products on the market do not rely on collagen itself, but on the Targeted support of collagen synthesis through:
- Vitamin C, zinc, copper, silicon
- Amino acids such as lysine, glycine, proline from plant sources
- Polyphenols and secondary plant substances against oxidative collagen degradation
These so-called Collagen booster can use the Promote natural collagen formationespecially with a high protein intake and a balanced diet.
Modern developments - as with Zimply Glow (vegetarian) - go beyond that: They deliver structurally similar peptideswhich are specifically aimed at the skin, joints or the connective tissuebut at the same time completely dispense with animal-based raw materials.
Production by fermentation or biotechnology
Some research groups and start-ups are working on the development of biotechnologically produced collagen on a microbial basis - e.g. through fermentation with yeasts or genetically modified bacteria. This process can theoretically produce vegan, structurally identical collagenbut is currently:
- technically complex
- cost-intensive
- not yet available on the market to a relevant extent
For commercial products, this form has so far played No practical roleHowever, it is an interesting field for the future - especially in the medical sector (e.g. for artificial tissue or wound healing).
7th Zimply Glow - Collagen capsules from Zimply Natural
With Zimply Glow from Zimply Natural you are doing something good for your body - for healthy skin, strong joints and lasting regeneration from within.
Vegetarian collagen from eggshell membrane
Our collagen contains types I, V and X - natural building blocks of connective tissue, tendons and cartilage. The vegetarian source Ovomet® comes from eggshell membrane, not from animal gelatine or slaughterhouse waste. It provides valuable structural components such as collagen, hyaluronic acid, glucosamine and chondroitin sulphate per daily dose (2 capsules). These occur naturally in bones, joints and connective tissue and contribute to the supply of typical amino acids. Particularly suitable for unbalanced diets or increased requirements, e.g. in old age or under heavy strain.
Recommended intake: 2 capsules daily with plenty of liquid with a meal.
The effect of collagen supplements depends not only on the quality of the product, but also on this, how and when they are taken. In order to optimize the absorption and effect in the body, you should observe a few basic points. Here are the most important recommendations for the effective and well-tolerated use of collagen - whether in powder, capsule or liquid form.
How often and when to take collagen?
Collagen should daily and consistently should be taken - ideally over a period of at least 8 to 12 weeksto achieve the first noticeable effects.
The time of ingestion is generally flexible, but many people prefer the Morning intake (e.g. on an empty stomach or at breakfast), as the digestive tract is particularly active at this time.
Collagen on an empty stomach or with a meal?
Collagen can be both sober as well as with a meal can be taken at any time. Tolerance is individual - if you have a sensitive stomach, it is recommended to take with a light meal recommended. Above all, it is important to Regular supplynot the exact time.
Combination partners: vitamin C, zinc, silicon
In order to optimally support the body's own collagen synthesis, you should ensure that you are also supplied with certain micronutrients:
- Vitamin C is essential - without this vitamin, a stable collagen structure is not possible.
- Zinc and Copper promote the enzymatic cross-linking of the fibers.
- Silicon supports the structural stability of connective tissue and skin.
Powder or capsules - which is better for you?
The choice of dosage form is a question of personal lifestyle:
- Powder is suitable for people who like to prepare smoothies or shakes. It can be easily stirred into warm and cold liquids - but is not always neutral in taste.
- Capsules are ideal for on the go, tasteless and can be dosed precisely.
The decisive factor is not the shape, but the Regular, sufficient intake over several weeks
Smoothies, coffee, yogurt: how to integrate collagen powder
If you use collagen in powder form, you can easily incorporate it into various dishes:
- In Fruit smoothies or protein shakes
- In Yogurt, porridge or soups
- In Coffee or tea (provided the product is heat-stable)
Important: Most hydrolyzed collagen preparations are neutral in taste and easily solublebut react differently depending on temperature and pH value. It is best to test with water or juice first.
What you should avoid when taking it
Some factors can impair the absorption or effect of collagen:
- Meals high in sugar simultaneously with collagen → can promote glycation
- Alcohol → Inhibits enzymatic processes of collagen synthesis
- Irregular intake → Reduces the long-term effect
- Missing micronutrients → make the collagen supply less effective
Chronic stress, lack of sleep and smoking also accelerate the breakdown of collagen - regardless of the intake. Therefore, an effective collagen strategy always includes a look at the Overall lifestyle.
9. FAQs on collagen
Here you will find answers to frequently asked questions about collagen - from effects and tolerability to suitable application.
Does collagen really help with wrinkles?
Yes - several controlled studies show that hydrolyzed collagen with regular intake the Improved skin elasticity, the Increased moisture content and the Reduced wrinkle depth. The prerequisite is a Daily intake for at least 8 to 12 weeksideally combined with vitamin C.
Where is collagen contained?
Collagen comes in animal tissues e.g. in bones, skin, cartilage, tendons or fish scales. Foods such as Bone broth, fish skin or gelatine contain larger amounts. Plant-based foods contain no collagenbut can be its Support the body's own formation (e.g. through vitamin C, zinc, copper, silicon).
How long does it take for collagen to take effect?
The first measurable effects are usually seen after 8 to 12 weeks of daily intake. Depending on the initial situation and dosage, it may take longer for joint complaints or skin applications. The decisive factors are Regularity and longevity the application.
What is the difference between type I and II collagen?
Type I is the most common collagen in the body. There are Structure and tensile strengthespecially in the skin, tendons, ligaments and bones.
Type II occurs primarily in the Cartilage tissue and is crucial for the elasticity and resilience of joints.
For Skin and connective tissue Type I is relevant for Joint health and osteoarthritis prevention Type II.
Is collagen suitable for vegetarians?
Classic collagen comes from animal sources (e.g. beef, fish, chicken) and is therefore not suitable for vegetarians.
Vegetarian collagen products - such as Zimply Glow - are based on fermentatively produced, structurally similar peptides or on collagen-stimulating plant substances. They offer a functional alternative without animal ingredients.
Can I take collagen permanently?
Yes, collagen can Taken long-term and without interruption become. This is a structural proteinwhich the body incorporates into the skin, joints or connective tissue as required.
Daily intake over several months is advisable, especially for Declining collagen production from the age of 30 or with increased physical strain.
