Hair dietary supplements: contraindications and side effects

Hair dietary supplements: contraindications and side effects

Overview of the main categories of hair dietary supplements and their estimated exposure

Hair dietary supplements (biologically active additives) are a wide range of products designed to improve health and appearance. They often contain vitamins, minerals, amino acids, plant extracts and other compounds, which are claimed to contribute to hair growth, strengthen their structure, reduce loss and improve shine. It is important to understand that dietary supplements are not drugs and do not pass strict clinical trials similar to those required for drugs. Therefore, statements about their effectiveness are often based on limited studies, anecdotal evidence (unconfirmed evidence) or theoretical assumptions.

The main categories of hair dietary supplements include:

• Vitamins:

  • Vitamin A (Retinol): It is necessary for cell growth, including cells of hair follicles. However, an overdose of vitamin A can lead to hair loss and other serious side effects.
  • B vitamins (biotin, niacin, pantothenic acid, folic acid, B12): Biotin, perhaps the most famous hair vitamin, is involved in the metabolism of fats and carbohydrates necessary for hair growth. The disadvantage of biotin can lead to hair loss. Niacin improves blood circulation of the scalp, delivering nutrients to hair follicles. Pantotenic acid plays an important role in the health of hair follicles. Folic acid and B12 are necessary for cell division, which is important for hair growth.
  • Vitamin C (ascorbic acid): Antioxidant, protects hair follicles from damage to free radicals. It is also involved in the synthesis of collagen important for the structure of the hair.
  • Vitamin D: Participates in the regulation of the hair growth cycle. Vitamin D deficiency is associated with hair loss.
  • Vitamin E (Tokoferol): Antioxidant, improves blood circulation of the scalp.

• Minerals:

  • Iron: It is necessary for transporting oxygen to cells, including cells of hair follicles. Iron deficiency (iron deficiency anemia) is one of the most common causes of hair loss, especially in women.
  • Zinc: Participates in growth and restoration of fabrics, including hair. Zinc deficiency can lead to hair loss and other problems with the scalp.
  • Selenium: Antioxidant, protects hair follicles from damage. It is also necessary for the normal function of the thyroid gland, which plays an important role in hair health.
  • Magnesium: Participates in hundreds of enzymatic reactions in the body, including those necessary for hair growth.
  • Calcium: It is important for general health, including hair health.

• Amino acids:

  • L-Cistein: The main component of keratin, the protein made of which the hair consists of.
  • L-Lisin: Participates in the synthesis of collagen and the absorption of iron.
  • Methionine: Antioxidant, protects the hair from damage.

• Plant extracts:

  • SAW Palmetto palm extract: It is believed that it blocks digidrotestosterone (DGT), a hormone that can cause hair loss in men and women with androgenetic alopecia.
  • Nettle extract: Contains vitamins and minerals that can contribute to hair growth.
  • Horsetail extract of the field: It is rich in silicon, which is considered important for strengthening hair.
  • Green tea extract: Contains antioxidants that can protect hair follicles from damage.
  • Ginseng extract: Improves blood circulation of the scalp and stimulates hair growth.

• Other additives:

  • Omega-3 fatty acids: Improve the health of the scalp and contribute to hair growth.
  • Collagen: Protein, which is the main component of hair structure.
  • Hyaluronic acid: Moisturizes the scalp and hair.

The alleged exposure to hair dietary supplements varies depending on their composition. Some of them are aimed at replenishing the bowl of nutrients, others – at improving blood circulation of the scalp, others – to block hormones that cause hair loss, and fourth to strengthen the structure of the hair. It is important to note that the scientific evidence of the effectiveness of many hair dietary supplements is limited, and the results can vary depending on the individual characteristics of the body, the cause of hair loss and other factors.

Contraindications to the use of hair dietary supplements

The use of hair dietary supplements, despite their apparent harmlessness, has a number of contraindications that must be taken into account before the reception. Failure to comply with these warnings can lead to undesirable side effects and a deterioration in health status.

1. Individual intolerance (allergies): This is perhaps the most common contraindication. Before taking any dietary supplement, it is necessary to carefully study its composition for the presence of ingredients to which you may have an allergy. Allergic reactions can manifest itself in the form of a skin rash, itching, urticaria, Quincke’s edema (facial swelling, lips, tongue, larynx), difficulty breathing and even anaphylactic shock (severe, life -burning allergic reaction). If you have known allergies to any food, plants or medicines, consult a doctor or an allergist before taking a hair dietary supplement. Particular caution should be taken when taking dietary supplements containing plant extracts, since they can cause allergic reactions in people with sensitivity to certain plants.

2. Pregnancy and lactation period: The safety of many hair dietary supplements has not been carefully studied in pregnant and lactating women. Some ingredients contained in dietary supplements can be harmful to the developing fruit or baby receiving breast milk. For example, high doses of vitamin A can cause congenital defects. Plant extracts can have hormonal activity or have other undesirable effects. Therefore, pregnant and lactating women should avoid taking hair dietary supplements if this is not prescribed by a doctor. The doctor will be able to evaluate potential risks and advantages and decide on the advisability of taking dietary supplements in each case.

3. Liver and kidney diseases: The liver and kidneys play an important role in metabolism and remove various substances from the body, including components of dietary supplements. For diseases of the liver and kidneys, the function of these organs can be impaired, which can lead to the accumulation of toxic substances in the body and enhance the side effects of the intake of dietary supplements. Some dietary supplements, especially those that contain high doses of vitamins and minerals, can provide additional load on the liver and kidneys. People with liver diseases and kidneys should consult a doctor before taking any hair dietary supplements. The doctor may recommend alternative methods of treating hair loss or adjust the dosage of dietary supplements to minimize the risk of side effects.

4. Diseases of the gastrointestinal tract (gastrointestinal tract): Some hair dietary supplements can cause irritation of the mucous membrane of the stomach and intestines, especially when taking on an empty stomach. This can lead to symptoms such as nausea, vomiting, diarrhea, constipation, abdominal pain and heartburn. People with gastrointestinal diseases, such as gastritis, peptic ulcer, colitis and irritable bowel syndrome (SRK) should take care of hair dietary supplements with caution. It is recommended to take dietary supplements during or after meals to reduce the irritating effect on the gastrointestinal mucosa. If after taking the Bad there are unpleasant symptoms from the gastrointestinal tract, you should stop taking it and consult a doctor.

5. Thyroid diseases: Some hair dietary supplements contain selenium, which is necessary for the normal function of the thyroid gland. However, the excess selenium can be harmful to people with thyroid diseases, such as hypothyroidism (reduced thyroid function) or hyperthyroidism (increased thyroid function). Selenium can interact with medicines used to treat thyroid diseases and change their effectiveness. People with thyroid diseases should consult a doctor before taking hair dietary supplements containing selenium. The doctor can evaluate the level of selenium in the blood and adjust the dosage of dietary supplements to avoid undesirable effects.

6. Taking certain drugs: Hair dietary supplements can interact with some drugs, changing their effectiveness or increasing side effects. For example, vitamin K can reduce the effectiveness of anticoagulants (drugs that thin blood). Serene palm extract can enhance the effect of anticoagulants and increase the risk of bleeding. Some plant extracts can interact with antidepressants, antibiotics and other drugs. Therefore, before taking the hair dietary supplement, it is necessary to inform the doctor about all the drugs that you take, including prescription drugs, over -the -counter drugs and other dietary supplements. The doctor will be able to evaluate potential interactions and give recommendations on the safe use of dietary supplements.

7. Age up to 18 years: The safety and effectiveness of hair dietary supplements in children and adolescents has not been carefully studied. Some ingredients contained in dietary supplements can be contraindicated for children and adolescents, especially in large doses. Therefore, it is not recommended to give hair dietary supplements to children and adolescents without consulting a doctor.

8. Blood coagulation disorders: Some dietary supplements, such as vitamin E and a cuts of gray palm, can affect blood coagulation and increase the risk of bleeding. People with blood coagulation, such as hemophilia or thrombocytopenia, should be caused to take hair dietary supplements. Before taking the dietary supplement, it is necessary to consult a doctor and inform him of the presence of blood coagulation disorders.

9. The upcoming surgical interventions: Some dietary supplements, such as vitamin E and a cuts of gray palm, can increase the risk of bleeding during and after surgical interventions. Therefore, it is recommended to stop taking these dietary supplements a few weeks before the planned operation. Tell your doctor about all the dietary supplements you accept before surgery.

10. Oncological diseases: Some studies show that high doses of some vitamins and minerals can contribute to the growth of cancer cells. People with cancer or with a high risk of cancer should consult a doctor before taking hair dietary supplements.

Side effects of hair dietary supplements

Side effects from taking hair dietary supplements can vary depending on the composition of the dietary supplement, dosage, individual characteristics of the body and the presence of concomitant diseases. In general, dietary supplements are considered relatively safe, but in some cases undesirable reactions may occur. It is important to know about possible side effects in order to recognize them in time and take the necessary measures.

1. From the gastrointestinal tract (gastrointestinal tract):

   • Nausea and vomiting: Some dietary supplements, especially when taking on an empty stomach, can cause nausea and vomiting. This is due to the irritating effect of dietary supplements on the mucous membrane of the stomach.
   • Diarrhea (diarrhea): An overdose of vitamins and minerals, such as vitamin C, magnesium and zinc, can cause diarrhea. Some plant extracts can also have a laxative effect.
   • Constipation: Some dietary supplements, such as iron preparations, can cause constipation.
   • Abdominal pain and spasms: Irritation of the gastrointestinal mucosa or a change in the intestinal microflora can lead to pain in the abdomen and spasms.
   • Heartburn and dyspepsia: Some dietary supplements can enhance the production of gastric juice and cause heartburn and dyspepsia (digestive disorder).

2. Allergic reactions:

   • Skin rash and itching: Allergic reactions can appear in the form of a skin rash, itching, urticaria (the appearance of blisters on the skin).
   • Quincke’s edema: In rare cases, Quincke’s edema may develop – edema of the face, lips, tongue, larynx, which can lead to difficulty breathing. This condition requires immediate medical care.
   • Anaphylactic shock: In extremely rare cases, anaphylactic shock may develop – a severe, life -threatening allergic reaction, which is characterized by a sharp decrease in blood pressure, difficulty breathing and loss of consciousness. This condition requires immediate medical care.

3. From the skin and hair:

   • Acne (acne): An overdose of some vitamins, such as vitamin B12, can contribute to the appearance of acne.
   • Skin itching: An allergic reaction or increased sensitivity to dietary supplements can cause skin itching.
   • Hair loss (paradoxical effect): In rare cases, taking hair dietary supplements can lead to increased hair loss. This may be due to an individual reaction to the components of the dietary supplement or with an overdose of some vitamins and minerals. For example, an overdose of vitamin A can cause hair loss.
   • Changing hair color: Some dietary supplements containing copper can change the color of the hair.

4. From the nervous system:

   • Headache: Some dietary supplements can cause headache.
   • Dizziness: Dizziness may be associated with circulatory disorders or with a side effect of dietary supplements.
   • Insomnia or drowsiness: Some dietary supplements can affect sleep, causing insomnia or drowsiness.
   • Irritability: Some dietary supplements can cause irritability and nervousness.

5. From the cardiovascular system:

   • Improving blood pressure: Some dietary supplements containing caffeine or other stimulants can increase blood pressure.
   • Far heartbeat (tachycardia): Some dietary supplements can cause a rapid heartbeat.

6. From the endocrine system:

   • Menstrual cycle violation: Some dietary supplements containing plant extracts with hormonal activity can disrupt the menstrual cycle in women.
   • Changing the level of thyroid hormones: Some dietary supplements containing selenium can affect the level of thyroid hormones.

7. Other side effects:

   • Unpleasant taste in the mouth: Some dietary supplements can leave an unpleasant taste in the mouth.
   • Changing the color of urine and feces: Some vitamins and minerals can change the color of urine and feces.
   • Swelling: In rare cases, swelling may occur.

Interaction with drugs

Hair dietary supplements can interact with various drugs, which can lead to a change in their effectiveness, enhance side effects or the occurrence of new undesirable reactions. It is important to consider these interactions and inform the doctor about all the dietary supplements and medicines.

1. Anticoagulants (drugs that thinning blood): Vitamin E, omega-3 fatty acids and palm extract of Sereena can enhance the effect of anticoagulants such as warfarin, heparin and clopidogrel, and increase the risk of bleeding.
2. Anti -aggregates (drugs preventing blood clots): Vitamin E and omega-3 fatty acids can also enhance the effect of antiplatelets, such as aspirin and clopidogrel, and increase the risk of bleeding.
3. Antibiotics: Some minerals, such as zinc and iron, can reduce the absorption of antibiotics, such as tetracycline and chinolones. It is recommended to take antibiotics and mineral additives with an interval of at least 2 hours.
4. Levotyroxin (thyroid hormone): Some additives containing iron, calcium and soybeans can reduce the absorption of levotyroxine. It is recommended to take a levotikoxin separately from these additives with an interval of at least 4 hours.
5. Antidepressants: Some plant extracts, such as St. John’s wort, can interact with antidepressants and change their effectiveness or enhance side effects.
6. Antifungal drugs: Biotin can affect the results of analyzes on fungal infections, leading to false negative results. Tell the doctor about taking biotin before passing analyzes for fungal infections.
7. Diabetes Medicines: Some dietary supplements containing chrome can affect blood sugar and change the need for diabetes. Consult a doctor if you take medications for diabetes and plan to take dietary supplements containing chrome.
8. High blood pressure medicines: Some dietary supplements containing caffeine or other stimulants can increase blood pressure and reduce the effectiveness of drugs for high blood pressure.
9. Diuretics (diuretics): Some dietary supplements containing potassium can enhance the effect of diuretics and lead to excessive elimination of potassium from the body.

Recommendations for the safe use of hair dietary supplements

To minimize the risk of side effects and ensure the safety of the use of hair dietary supplements, the following recommendations should be followed:

1. Consult a doctor: Before taking any hair dietary supplement, you need to consult a doctor. The doctor will be able to evaluate your state of health, identify possible contraindications and interactions with drugs, as well as give recommendations on the safe use of dietary supplements.
2. Study the composition of the dietary supplement: Carefully study the composition of the dietary supplement for the presence of ingredients for which you may have an allergy or intolerance. Pay attention to the dosage of vitamins and minerals.
3. Start with a low dose: Start taking a low dose dose and gradually increase it, if necessary, in accordance with the doctor’s recommendations or instructions for use.
4. Take dietary supplements during or after eating: The intake of dietary supplements during or after eating can reduce the irritating effect on the gastrointestinal mucosa and improve the absorption of dietary supplements.
5. Do not exceed the recommended dosage: Exceeding the recommended dosage of dietary supplements can lead to undesirable side effects.
6. Report the doctor about all the dietary supplements and medicines: Tell your doctor about all dietary supplements and medicines that you take so that he can evaluate potential interactions.
7. Follow your well -being: During the reception of Bad, carefully follow your well -being. If you notice any undesirable side effects, stop taking the dietary supplement and consult a doctor.
8. Buy dietary supplements dietary supplements: Buy dietary supplements only from reliable suppliers to avoid the purchase of fakes or poor -quality products.
9. Keep dietary supplements in no way for children: Keep dietary supplements in no way for children to avoid accidental swallowing.
10. Do not use dietary supplements as a replacement for good nutrition: Bades should not be used as a replacement for good nutrition. They are only an addition to a balanced diet and a healthy lifestyle.

The importance of consulting a doctor and conducting the necessary examinations before starting dietary supplements

Consulting with a doctor and conducting the necessary examinations before taking hair dietary supplements are crucial for ensuring the safety and effectiveness of treatment. An independent intake of dietary supplements without prior consultation with a doctor can lead to undesirable consequences, including:

• Incorrect diagnosis: Hair loss can be caused by various causes, including nutrient deficiency, hormonal disorders, stress, scalp diseases and other factors. Without the correct diagnosis, it is impossible to choose effective treatment. The doctor will be able to conduct the necessary examinations to determine the cause of hair loss and prescribe the appropriate treatment.
• Incorrect choice of dietary supplement: A wide range of hair dietary supplements is presented on the market, and the choice of a suitable product can be complicated. The doctor will be able to help you choose a dietary supplement that meets your individual needs and health.
• Incorrect dosage: The correct dosage of dietary supplements is crucial to achieve the desired result and minimize the risk of side effects. The doctor will be able to determine the optimal dosage of dietary supplements taking into account your individual characteristics.
• Interaction with drugs: Bades can interact with drugs by changing their effectiveness or increasing side effects. The doctor will be able to evaluate potential interactions and give recommendations on the safe use of dietary supplements.
• The aggravation of existing diseases: The use of some dietary supplements can aggravate existing diseases, such as diseases of the liver, kidneys, thyroid gland and gastrointestinal tract. The doctor will be able to evaluate the risk of aggravation of diseases and give recommendations on the safe use of dietary supplements.

The necessary examinations before the start of the hair dietary supplement:

Depending on the alleged cause of hair loss, the doctor may prescribe the following examinations:

• General blood test: It helps to identify anemia (iron deficiency), inflammatory processes and other deviations that can be associated with hair loss.
• Biochemical blood test: It helps to evaluate the function of the liver, kidneys and thyroid gland, as well as identify a deficiency of vitamins and minerals.
• Analysis for thyroid hormones (TS, T3, T4): It helps to identify disorders of the thyroid gland that can cause hair loss.
• Iron analysis (ferritin, serum iron, OZHSS): It helps to identify iron deficiency, which is one of the most common causes of hair loss in women.
• Analysis for vitamin D: Helps to identify vitamin D deficiency, which is associated with hair loss.
• Zinc Analysis: It helps to identify zinc deficiency, which can lead to hair loss and other scalp problems.
• Trichogram: Helps to evaluate the condition of hair follicles and identify hair growth disorders.
• Scalp biopsy: In rare cases, a scalp biopsy may be required to exclude skin diseases that can cause hair loss.

After conducting the necessary examinations and establishing the cause of hair loss, the doctor will be able to choose the most effective and safe treatment, which may include taking dietary supplements, drugs, cosmetics and other treatment methods.

Alternative methods for improving hair health

In addition to taking dietary supplements, there are other methods that can help improve hair health and reduce hair loss. These methods include:

1. Balanced nutrition: Proper nutrition plays an important role in hair health. Use products rich in protein, iron, zinc, vitamins and other nutrients necessary for the growth and strengthening of hair. Include meat, fish, eggs, dairy products, legumes, nuts, seeds, fruits and vegetables in your diet.

2. Sufficient water consumption: Dehydration can lead to dry hair and brittle hair. Drink enough water during the day to maintain hydration of the body and hair.

3. Correct hair care: Use shampoos and air conditioners suitable for your hair type. Avoid frequent use of a hairdryer, ironing and other thermal devices that can damage the hair. Do not comb wet hair, as it is more vulnerable to damage.

4. Scalp massage: Scalp massage improves blood circulation and stimulates hair growth. You can do massage yourself or contact a specialist.

5. Stress management: Stress can be one of the causes of hair loss. Find the ways of managing stress, such as yoga, meditation, walking in the fresh air or communication with friends and family.

6. Refusal of smoking: Smoking worsens blood circulation and can lead to hair loss. Refusal of smoking can improve hair health.

7. Avoid tight hairstyles: Tight hairstyles, such as braids and bundles, can pull on the hair and lead to its loss. Avoid tight hairstyles and let your hair rest.

8. Using natural oils: Natural oils, such as coconut oil, olive oil and argan oil, can moisturize and nourish the hair, giving them shine and strength.

9. Regular visits to a trichologist: Regular visits to a trichologist will help identify hair problems at an early stage and get timely treatment.

The combination of a balanced diet, proper hair care, stress management and other methods can help improve hair health and reduce hair loss without the need to take dietary supplements. However, in some cases, the intake of dietary supplements can be a useful addition to the main treatment. In any case, before taking the dietary supplement, you need to consult a doctor.

The role of marketing and advertising in the formation of public opinion about hair diets

Marketing and advertising play a significant role in the formation of public opinion about hair diets. Often, advertising of dietary supplements promises a wonderful hair transformation, promising density, brilliance and the cessation of the loss in the shortest possible time. However, it is important to remember that dietary supplements are not medicines and their effectiveness is not always confirmed by scientific research.

Marketing strategies used to promote hair dietary supplements often include:

• Using celebrities and bloggers: Advertising involving celebrities and bloggers who talk about their positive experience in using dietary supplements can be very effective. However, it is important to remember that these reviews can be biased and not reflect the real effectiveness of the product.
• Using photos “before and after”: Photos “before and after” can give the impression of the significant efficiency of Bad. However, it is important to consider that these photos can be edited or not reflect the real result.
• The use of scientific terms and pseudo -scientific statements: Advertising of dietary supplements often uses scientific terms and pseudo -scientific allegations to create the impression of the scientifically sound effectiveness of the product. However, it is important to critically evaluate these statements and check their reliability.
• Creating a deficit: Advertising can give an impression of product deficiency to stimulate the purchase.
• Guarantees of the refund: Guarantees of a refund of money may create an impression of the manufacturer’s confidence in the effectiveness of the product. However, it is important to carefully study the terms of the refund.

It is important to remember that advertising often exaggerates the effectiveness of dietary supplements and is silent about possible side effects. Therefore, before making a decision on the purchase of a hair dietary supplement, it is necessary to critically evaluate advertising statements and conduct your own research.

Criteria for choosing high -quality hair dietary

When choosing a hair dietary supplement, it is important to pay attention to the following criteria:

1. Composition: Carefully study the composition of the dietary supplement. Make sure that it contains ingredients that, as you know, are useful for hair health, such as vitamins, minerals, amino acids and plant extracts.
2. Dosage: Pay attention to the dosage of active ingredients. Make sure that it corresponds to the recommended dosages and does not exceed safe levels.
3. Manufacturer: Choose dietary supplements from famous and reliable manufacturers who have a good reputation and comply with quality standards.
4. Certification: Make sure that the dietary supplement is certified by the relevant quality control authorities.
5. Reviews: Read the reviews of other consumers about the dietary supplement. However, remember that reviews can be biased and not always reflect the real effectiveness of the product.
6. Price: Not always the most expensive dietary supplement is the most effective. Compare prices for different dietary supplements and select the one that corresponds to your budget.
7. Consultation with a doctor: Before buying dietary supplements, consult your doctor so that he can help you choose the most suitable product and determine the correct dosage.

The choice of high -quality hair dietary supplement is an important step towards improving the health and appearance of your hair. Follow these criteria to make a conscious and safe choice.