Dietician
Karolina Dobrowolska-Zrałka
Collagen is the basic structural protein of the skin, tendons, ligaments and cartilage, responsible for firmness, elasticity and resistance of tissues to injuries. His molecules form a triple Helisa, which is degraded with age and under the influence of external factors. When the balance between the synthesis and collagen degradation is disturbed, the fibers become shallower, weaker and less resistant to stretching.
In the following guide, we will look at the most important factors that accelerate collagen loss: from natural aging processes, through environmental and dietary factors, to stress or chronic diseases. Finally, we will discuss collagen protection strategies - cosmetic, dietary and lifestyle - thanks to which you will keep healthy and elastic skin and efficient joints for many years.
Natural decline in collagen
Already after the age of 25, the body begins to synthesize less and less collagen - the decrease rate is about 1-1.5 % per year. Fibroblasts, cells responsible for the production of prokolagen, become less efficient, and at the same time increases the activity of metaloproteinase (MMP), enzymes that break down damaged fibers. In the skin, this is manifested by the thinning of the proper layer, visible increased increase in the depth of wrinkles and the loss of firmness. In tendons and ligaments, tensile strength reduces, which can lead to more frequent micro -injuries and chronic joint pain.
Although aging is inevitable, the decrease rate can be slowed down by stimulating fibroblasts: regular use of retinoids, collagen peptides and microneedle massages helps restore synthesis ability and improve the density of collagen fibers.
UV radiation
UVA and UVB ultraviolet radiation is one of the strongest collagen destructive factors. UVA penetrates deep layers of the skin, disrupting the structure of the fibers and activating MMP-1, MMP-3 and MMP-9. In turn, UVB causes inflammation and formation of free radicals that damage collagen proteins and elastin. Regular tanning without SPF protection can shorten the life of the fibers by up to 50 %.
Protection against sun (SPF 30-50, use every 2 hours), avoiding exposure from 10:00 to 16:00 and wearing protective clothing are the basic methods of preventing photoaging and degradation of collagen.
Glycation
Excess simple sugars in the blood lead to the creation of advanced glycation products (AGE), which combine with collagen, "crossing" the fibers and making them stiffer and less elastic. Glycation reduces skin elasticity, accelerates wrinkles and worsens joint regeneration.
Limiting the consumption of simple sugars and products with a high glycemic index (sweets, white bread, sweetened drinks) and reaching for antioxidants (vitamin C, green tea polyphenols) helps reduce AGE formation and protect collagen fibers from damage.
Smoking
Tobacco smoke contains over 4,000 toxins, including free radicals and pro -inflammatory compounds, which activate MMP and destroy type I collagen. Smokers have 30-40 % thinner collagen fibers than non -smokers, which translates into deeper wrinkles and higher susceptibility to osteoarthritis.
Smoking accelerates the reconstruction of collagen fibers and significantly improves the blood supply to the skin and the ability to regenerate tissues, but the full effects are only visible after a few months of stopping smoking.
Alcohol and diet
Alcohol increases oxidative stress, inhibits collagen synthesis and disturbs hormonal balance. Regular consumption of even moderate amounts of alcohol accelerates the degradation of fibers and reduces the levels of vitamin C and other antioxidants. A diet rich in trans fats, preservatives and processed products promotes inflammation that activate MMP and destroy collagen.
The introduction of an anti -inflammatory diet - deciduous vegetables, fatty fish, nuts, olive oil - and limiting alcohol to occasional consumption helps reduce inflammation and support the synthesis of new collagen fibers.
Stress and collagen
Chronic stress increases the level of cortisol, which inhibits fibroblast activity and stimulates collagen degradation by MMP. In addition, oxidative stress generated by free radicals increases inflammatory processes. The skin becomes gray, flaccid, and the joints are stiff and painful.
Stress reduction techniques - meditation, yoga, respiratory training, regular physical activity - reduce cortisol levels, improve tissue blood supply and support natural collagen production.
Lack of sleep
During the deep phases of sleep, growth hormone secretion (GH) increases, which stimulates fibroblasts for collagen production and damage repair. Sleep deficiency (less than 6 hours a day) disturbs the GH secretion rhythm, resulting in lower collagen synthesis and slower wound healing.
Caring for sleep quality - regular hours, silencing before bedtime, limiting blue light in the evening - promotes tissue regeneration and maintaining skin firmness and joint elasticity.
Chronic diseases
Autoimmune diseases (rheumatoid arthritis, lupus), chronic infections and diabetes generate long -term inflammation and hyperactivity of MMP, which leads to accelerated degradation of collagen in joints and skin. In addition, kidney and liver diseases that disturb the metabolism of the amino acids needed for collagen synthesis are dangerous.
Treatment of chronic diseases, glycemic control, implementation of anti -inflammatory drugs and an elimination diet (e.g. low porosity, low -carbohydrate) are key elements of collagen protection in the course of these diseases.
How to protect collagen?
Comprehensive collagen protection includes:
- use of high SPF creams and antioxidants (vitamin C, E, green tea),
- supplementation with hydrolyzed collagen peptides (5-10 g per day) with vitamin C,
- anti -inflammatory diet rich in vegetables, fish, nuts and healthy fats,
- limitation of alcohol, simple sugars and processed food,
- daily physical activity and massages improving circulation,
- stress reduction techniques and taking care of 7-8 hours of sleep per day,
- Regular control and treatment of inflammation or chronic diseases.
Sources
- Prockop DJ, Kivirikko Ki. Collagens: Molecular Biology, Diseases, and Potentials for Therapy. Ann Rev Biochem. 1995.
- Fisher GJ et al. Mechanisms of Photoaging and Chronological Skin Aging. Arch Dermatol. 2002.
- Verzijl n et al. Effect of Collagen Turnover on the Accumulation of Advanced Glycation End Products. J biol chem. 2000.
- Yoon Jh et al. Smoking Accelerates Collagen Degradation in Human Skin. J Invest Dermatol. 2011.
- Hernández-Barrera l et al. Sleep and Skin Health: A review. Sleep Med Rev. 2020.
FAQ
1. Can collagen drop after 25 be slowed down?
Yes - regular collagen supplementation, a diet rich in antioxidants (vitamin C, E), avoiding excessive exposure to UV, quitting smoking and stress reduction techniques (meditation, yoga) help maintain fibroblast activity and slow down the degradation of collagen fibers.
2. How often to use a filter cream to protect collagen?
It is recommended to apply cream with SPF 30-50 every morning, repeat the application every 2 hours during exposure to the sun and use protective clothing and avoid the sun from 10:00 to 16:00, when the radiation is the strongest.
3. Does food gelatin help in collagen protecting?
Jellytin is partly hydrolyzed collagen. Adding it to a diet (desserts, jelly) can provide amino acids for collagen synthesis, but specific collagen peptides in the form of hydrolyzate are better tested and absorbed faster.
4. How does stress affect collagen and what to do about it?
Chronic stress increases cortisol levels, which inhibits collagen production and intensifies MMP activity. The introduction of relaxation techniques - meditation, breathing exercises, regular physical activity - helps to lower cortisol and support tissue regeneration.
5. Does smoking have a reversible effect on collagen?
Smoking allows for gradual reconstruction of collagen fibers, improvement of skin blood supply and an increase in fibroblast activity. Full effects can be visible after 6-12 months after the stopping of smoking.
6. What supplements support collagen protection?
The most frequently recommended are hydrolyzed collagen (5-10 g per day) combined with vitamin C (500–1000 mg), zinc and copper. Antioxidants are also good-green tea extract, coenzyme Q10 or omega-3.
7. How to take care of collagen regeneration in the ponds?
Coal -type II collagen supplementation, muscle strengthening exercises, adequate supply of vitamin C and D, avoiding excessive joints of the joints and lymphatic massages support the regeneration of cartilage and connective tissues, protecting collagen from degradation.
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