Hair growth additives: myth or reality

Hair growth additives: myth or reality

Chapter 1: Fundamentals of Hair Biology and Factors affecting their growth

Hair, filamentous leather appendages, consist mainly of keratin protein. Each hair grows from a hair follicle located in a dermis, a layer of skin located directly under the epidermis. The hair growth process is cyclic and consists of four main phases: anagen (growth phase), katagen (transitional phase), heelogen (resting phase) and exogen (falling phase).

• Anagen (growth phase): This phase, the longest, lasts from two to seven years. During this period, the cells of the hair follicle are actively divided, adding new cells to the hair rod, which leads to its elongation. The duration of the anagen determines the potential length of the hair. In people with a longer phase of anagen, hair can grow much longer. Approximately 85-90% of the hair on the head is in the anagen phase at any time. The factors affecting the anagen include genetics, nutrition and general health. Premature completion of anagen can lead to shortening the length of the hair and increasing the loss. Hormonal changes, stress and some drugs can also reduce the anagen phase.

• Katagen (transition phase): Katagen is a short, transition phase that lasts about two to three weeks. During this phase, hair growth stops, and the hair follicle begins to contract. The hair is separated from the dermal papilla, which provides it with nutrients. Approximately 1-3% of the hair on the head are in the catagen phase. The cells of the hair follicle stop the division, and the follicle begins to regress. This process of preparation for the telogen phase.

• Telogen (Phase Salm): Telogen is a phase of peace that lasts about three months. During this phase, the hair completely stops growing and remains in the follicle, but not attached to the dermal papilla. About 10-15% of the hair on the head are in the heterogene phase. During this phase, the new hair begins to form under the old one, preparing to pushing the old hair. Stress, illness or hormonal changes can lead to an increase in the number of hair passing into the heterogene phase, which leads to a heightogen outflow — temporary hair loss.

• Exogen (falling phase): Exogenes are a falling phase when old hair falls out of a follicle. Usually we lose about 50-100 hair per day. This process allows a new hair to grow from the same follicle. Hair loss in the exogen phase is a normal part of the hair growth cycle. However, excessive hair loss can be a sign of a problem, such as a heterogene outflow or other conditions.

Hair growth factors:

Many factors affect hair growth and their general condition. These factors can be divided into several main categories:

• Genetics: The genetic predisposition plays a significant role in determining the texture, thickness and speed of hair growth. Genes affect the structure of the hair follicle, keratin production and the duration of each phase of the hair growth cycle. Hereditary conditions, such as androgenetic alopecia (baldness according to the male or female type), are also genetically determined.

• Hormones: Hormones play a key role in regulating the hair growth cycle. The imbalance of hormones, such as testosterone, digidrotestosterone (DGT), estrogen and thyroid hormones, can lead to hair loss. DGT, a derivative of testosterone, is the main cause of androgenetic alopecia. It reduces the anagen phase and miniatures hair follicles. Changes in estrogen levels during pregnancy and menopause can also affect hair growth. Hypothyroidism (insufficient thyroid activity) and hyperthyroidism (excessive thyroid activity) can also cause hair loss.

• Nutrition: A balanced diet rich in vitamins, minerals and proteins is necessary for healthy hair growth. Hair consists mainly of keratin, protein, so sufficient protein consumption is crucial. The deficiency of nutrients, such as iron, zinc, biotin and vitamins of group B, can lead to hair loss, slowing down and hair quality deterioration.

• Stress: Chronic stress can negatively affect hair growth. Stress can lead to heterogeneous outflow, when a large amount of hair prematurely passes into the heterogene phase and falls out. Stress can also affect the immune system, which can lead to autoimmune conditions, such as nesting alopecia, when the immune system attacks the hair follicles.

• Age: With age, a hair growth cycle slows down, and hair follicles can become smaller and produce thinner hair. The duration of the anagen phase decreases, and the queener phase increases, which leads to a decrease in hair density. The production of melanin, the pigment that gives the hair color also decreases with age, which leads to the appearance of gray hair.

• Medical conditions and medicines: Some medical conditions, such as autoimmune diseases, scalp infections and thyroid disorders, can cause hair loss. Some drugs, such as chemotherapeutic drugs, antidepressants, anticoagulants and drugs to reduce blood pressure, can also cause hair loss as a side effect.

• Hair care: Excessive use of aggressive chemicals, such as dyes, brighteners and products for chemical curls, can damage the hair and lead to their brittleness and loss. Frequent heat treatment with a hairdryer, ironing or curling iron can also damage the hair. Tight hairstyles, such as braids and horse tails, can exert excessive pressure on the hair follicles and lead to traction alopecia.

Understanding these factors is the key to developing effective strategies to maintain healthy hair growth and solving problems associated with hair loss. Proper nutrition, stress management, careful hair care and seeing a doctor can help maintain the health and density of hair.

Chapter 2: Review of popular additives for hair growth and scientific evidence

The hair additives market is huge and continues to grow, offering many products promising to improve hair growth, increase its density and stop the loss. However, the effectiveness of these additives is often the subject of disputes. It is important to evaluate scientific evidence confirming each statement before making a decision on the use of a particular additive. Here is a review of some of the most popular additives for hair growth and scientific data confirming or refuting their effectiveness:

• Biotin (Vitamin B7): Biotin is a water -soluble vitamin of group B, which plays an important role in the metabolism of fats, carbohydrates and proteins. It is often advertised as an additive for strengthening hair and nails. Biotin is necessary for the production of keratin, the main structural protein of hair.

  • Scientific evidence: Biotin’s deficiency is rare, but can lead to hair loss, thinning of hair and fragility of nails. Studies have shown that biotin additives can be effective for improving hair and nail growth in people with biotin deficiency. However, if a person does not have a biotin deficiency, biotin additives will probably not have a significant effect on hair growth. It is important to note that high doses of biotin can affect the results of laboratory tests, so it is important to inform the doctor if you take biotin supplements.

• Collagen: Collagen is a protein that makes up a significant part of our skin, hair and nails. Collagen additives are often advertised as a way to improve skin elasticity, reduce wrinkles and strengthen hair and nails.

  • Scientific evidence: Collagen is hydrolyzed in additions, which means that it is split into smaller peptides, which are easier to learn by the body. Some studies have shown that collagen supplements can improve skin hydration, elasticity and reduce wrinkles. Some studies also showed that collagen additives can increase hair thickness and reduce hair loss. However, additional studies are needed to confirm these results and determine the optimal dose and type of collagen for hair growth.

• Vitamin D: Vitamin D is a fat -soluble vitamin that plays an important role in bone health, immune function and hair growth. Vitamin D receptors are present in hair follicles, which indicates that he can play a role in a hair growth cycle.

  • Scientific evidence: Vitamin D deficiency is associated with various types of hair loss, including nesting alopecia and heterogene outflow. Studies have shown that vitamin D additives can help improve hair growth in people with vitamin D deficiency. However, if a person does not have a deficiency of vitamin D, the additives of vitamin D will probably not have a significant effect on hair growth. It is important to control the level of vitamin D and take additives only under the supervision of a doctor.

• Iron: Iron is necessary for the production of hemoglobin, protein in red blood cells, which tolerates oxygen throughout the body. Iron deficiency is a common cause of hair loss, especially in women.

  • Scientific evidence: Iron deficiency can lead to hair loss, thinning of hair and slowing hair. Studies have shown that iron additives can improve hair growth in people with iron deficiency or anemia. However, if a person does not have a deficiency of iron, iron supplements are not recommended, since the excess of iron can be toxic. It is important to determine the level of iron in the blood before taking iron additives.

• Zinc: Zinc is an important mineral that is involved in many enzymatic reactions in the body, including hair growth. It also plays a role in immune function and wound healing.

  • Scientific evidence: Zinc deficiency can lead to hair loss, thinning of hair and slowing hair. Studies have shown that zinc additives can improve hair growth in people with zinc deficiency. However, high doses of zinc can lead to side effects, such as nausea, vomiting and diarrhea. Long -term intake of high doses of zinc can also lead to a shortage of copper. It is important to take zinc supplements under the supervision of a doctor.

• Vitamin C: Vitamin C is a powerful antioxidant that protects the cells from damage caused by free radicals. He also plays an important role in the production of collagen and the absorption of iron.

  • Scientific evidence: Vitamin C does not have a direct effect on hair growth, but it is necessary for the health of the scalp and the production of collagen, which is an important hair component. Vitamin C also helps to absorb iron, which is necessary for hair growth. Vitamin C deficiency can lead to scurvy, a condition that can cause hair loss. Vitamin C additives can be useful for maintaining hair health, especially if a person has a deficiency of vitamin C.

• Niacin (Vitamin B3): Niacin improves blood circulation, which can be useful for feeding hair follicles.

  • Scientific evidence: There are not enough studies confirming the direct influence of niacin on hair growth. Theoretically, improving blood circulation can contribute to better nutrition of hair follicles, but additional studies are needed.

• Selenium: Selenium is a trace element with antioxidant properties and playing a role in the functioning of the thyroid gland.

  • Scientific evidence: Selena deficiency can lead to hair loss. However, the excess selenium can also cause hair loss. It is important to maintain balance and not take selenium additives without need and consult a doctor.

• Amino acids: Amino acids are construction blocks of proteins, including keratin, the main component of the hair.

  • Scientific evidence: Some studies show that certain amino acids, such as L-cysteine, can help strengthen hair and improve their structure. However, additional studies are needed to confirm these results.

• SAW Palmetto (Palma Extract of Serenoa): Saw Palmetto is often used to treat male baldness (androgenetic alopecia) due to its properties to inhibit DGT (dihydrotestosterone).

  • Scientific evidence: Some studies show that Saw Palmetto can be effective for reducing hair loss and improving their density in men with androgenetic alopecia. However, additional studies are needed to confirm these results and determine the optimal dose.

• Extract of grape seeds: The extract of grape seeds contains antioxidants that can improve blood circulation and protect the hair follicles from damage.

  • Scientific evidence: Some studies show that grape seed extract can contribute to hair growth and reduce their loss. However, additional studies are needed to confirm these results.

Important considerations:

• Individual differences: The effectiveness of additives for hair growth can vary from person to person depending on genetics, state of health, diet and other factors.
• Product quality: The quality and purity of additives can vary depending on the manufacturer. It is important to choose additives from reliable brands and check the availability of quality certificates.
• Side effects and interaction with drugs: Some additives can cause side effects or interact with other drugs. It is important to consult a doctor before taking any new additives.
• Complex approach: Addresses for hair growth should be considered as part of an integrated approach, including a balanced diet, proper hair care and stress management.

Chapter 3: Alternative methods for treating hair loss and improve their growth

In addition to additives, there are a number of alternative methods of treating hair loss and improving their growth, which can be effective depending on the cause of hair loss. These methods include:

• Minoxidil (Rogaine): Minoxidil is a local drug that is approved by FDA for the treatment of baldness by male and female type. It increases the blood supply to the hair follicles and prolongs the anagen phase, which leads to an increase in hair growth and their density.

  • Scientific evidence: Minoxidil was widely studied and proved his effectiveness in the treatment of baldness in the male and female type. It is available in various concentrations and forms, including 2% and 5% solutions and foam. Minoxidil must be used regularly to maintain results. The cessation of the use of minoxidil can lead to the return of hair loss.

• Finasteride (Propecia): Finasteride is an oral drug that is approved by FDA for the treatment of baldness by male type. It blocks the enzyme 5-alpha reductase, which turns testosterone into dihydrotestosterone (DGT), a hormone responsible for the miniaturization of hair follicles with baldness by male type.

  • Scientific evidence: Finasteride proved its effectiveness in slowing hair loss and stimulating hair growth in men with male baldness. However, it can cause side effects, such as a decrease in libido, erectile dysfunction and a decrease in ejaculate. Finasteride is not recommended for women.

• Low -level laser therapy (LLLT): Low -level laser therapy (LLLT) uses lasers or LEDs to stimulate hair follicles and improve hair growth. LLLT is available in the form of home use devices, such as laser combs and helmets, as well as in the form of professional procedures carried out in clinics.

  • Scientific evidence: Some studies have shown that LLLT can be effective for improving hair growth in men and women with baldness by male and female type. It is believed that LLLT stimulates cellular metabolism and improves the blood supply to the hair follicles. However, additional studies are needed to determine the optimal parameters of LLLT and long -term efficiency.

• Plasma injections enriched with platelets (PRP): PRP injections include plasma injections enriched with platelets into the scalp. PRP contains growth factors that can stimulate hair follicles and improve hair growth.

  • Scientific evidence: Some studies have shown that PRP injections can be effective for improving hair growth in men and women with various types of hair loss, including baldness in the male and female type and nesting alopecia. However, additional studies are needed to confirm these results and determine the optimal PRP protocol.

• Hair transplantation: Hair transplantation is a surgical procedure in which hair follicles are transplanted from the donor region to the scalp to the area with hair loss. There are two main types of hair transplantation: FUT (transplantation of the follicular association) and Fue (extraction of follicular associations).

  • Scientific evidence: Hair transplantation is an effective and long -term method of hair restoration for people with baldness by male and female type. The results of hair transplantation look natural and can significantly improve the appearance and self -esteem.

• Essential oils: Some essential oils, such as rosemary oil, lavender oil and cedar oil, can contribute to hair growth and improve the health of the scalp.

  • Scientific evidence: Some studies have shown that rosemary essential oil can be as effective as minoxidil to improve hair growth with male baldness. It is believed that essential oils improve blood supply to the scalp and stimulate hair follicles. However, additional studies are needed to confirm these results and determine the optimal methods of using essential oils for hair growth. It is important to dilute essential oils with base oil, such as coconut oil or jojoba oil, before applying to the scalp.

• Scalp massage: Scalp massage can improve blood circulation in the scalp and stimulate hair follicles.

  • Scientific evidence: Scalp massage is a simple and affordable technique that can contribute to hair growth and improve the health of the scalp. Regular scalp massage can help improve blood supply to the hair follicles and reduce stress.

• Healthy lifestyle: A healthy lifestyle, including a balanced diet, sufficient sleep and stress control, can contribute to hair growth and improve their general condition.

  • Scientific evidence: A healthy lifestyle is necessary for hair health. Proper nutrition provides the body with the necessary nutrients for hair growth. A sufficient dream allows the body to recover and restore cells. Stress control can help reduce hair loss caused by stress.

Chapter 4: The role of diet and nutrition in hair health

A healthy and balanced diet plays a decisive role in hair health and their growth. Hair, like any other part of the body, needs the necessary nutrients for optimal functioning. The deficiency of certain vitamins, minerals and proteins can lead to hair loss, thinning of hair and slowing hair growth.

Key nutrients for hair health:

• Protein: Hair consists mainly of keratin, protein, so sufficient protein consumption is crucial for healthy hair growth. Good sources of protein include meat, fish, eggs, dairy products, legumes and nuts.

  • The role of protein: The protein provides the building blocks necessary for the production of keratin. Insufficient protein consumption can lead to weakening and brittle hair.

• Iron: Iron is necessary for the production of hemoglobin, protein in red blood cells, which tolerates oxygen throughout the body. Iron deficiency is a common cause of hair loss, especially in women. Good sources of iron include red meat, poultry, fish, legumes and dark green leafy vegetables.

  • The role of iron: Iron provides hair follicles with oxygen, which is necessary for hair growth. Iron deficiency can lead to anemia, a condition that can cause hair loss.

• Zinc: Zinc is an important mineral that is involved in many enzymatic reactions in the body, including hair growth. It also plays a role in immune function and wound healing. Good zinc sources include meat, seafood, nuts, seeds and whole grains.

  • The role of zinc: Zinc maintains tissue growth and restoration, including hair follicles. Zinc deficiency can lead to hair loss and slowing hair growth.

• Biotin (Vitamin B7): Biotin is a water -soluble vitamin of group B, which plays an important role in the metabolism of fats, carbohydrates and proteins. It is often advertised as an additive for strengthening hair and nails. Good sources of biotin include eggs, nuts, seeds, salmon and avocados.

  • The role of biotin: Biotin is necessary for the production of keratin. Biotin’s deficiency is rare, but can lead to hair loss, thinning of hair and fragility of nails.

• Vitamin C: Vitamin C is a powerful antioxidant that protects the cells from damage caused by free radicals. He also plays an important role in the production of collagen and the absorption of iron. Good sources of vitamin C include citrus fruits, berries, pepper and dark green leafy vegetables.

  • The role of vitamin C: Vitamin C protects hair follicles from damage and helps to absorb iron.

• Vitamin D: Vitamin D is a fat -soluble vitamin that plays an important role in bone health, immune function and hair growth. Good sources of vitamin D include fatty fish, eggs and enriched products.

  • The role of vitamin D: Vitamin D receptors are present in hair follicles, which indicates that he can play a role in a hair growth cycle. Vitamin D deficiency is associated with various types of hair loss.

• Vitamin E: Vitamin E is an antioxidant that protects the cells from damage.

  • The role of vitamin E: Vitamin E improves blood circulation in the scalp and protects the hair follicles from oxidative stress.

• Omega-3 fatty acids: Omega-3 fatty acids are useful fats that have an anti-inflammatory effect and contribute to the health of the scalp. Good sources of omega-3 fatty acids include fatty fish, flax seeds and walnuts.

  • The role of omega-3 fatty acids: Omega-3 fatty acids nourish hair follicles and reduce the scalp inflammation.

• Water: Sufficient water consumption is necessary for the hydration of the whole body, including hair.

  • The role of water: Water helps to transport nutrients to hair follicles and supports their healthy functioning.

Hair health products:

• Eggs: An excellent source of protein, biotin, iron and zinc.
• Salmon: Omega-3 fatty acids, protein and vitamin D.
• Spinach: Great source of iron, vitamin A and vitamin C.
• Sweet potato: It is rich in vitamin A, which is important for the health of the scalp.
• Avocado: Rich in healthy fats and vitamin E.
• Nuts and seeds: A good source of protein, zinc, vitamin E and omega-3 fatty acids.
• Greek yogurt: Rich in protein and probiotics.
• Carrot: It is rich in vitamin A, which is important for the health of the scalp.

Dietary recommendations:

• Use a variety of foods rich in nutrients.
• Make sure you get enough protein, iron, zinc, biotin and other important vitamins and minerals.
• Eat a lot of fruits and vegetables.
• Limit the consumption of processed products, sugar and unhealthy fats.
• Drink enough water.

Food intolerance and allergies:

In some cases, hair loss can be associated with food intolerance or allergies. If you suspect that you may have food intolerance or allergies, it is important to consult a doctor to conduct tests and receive recommendations.

Chapter 5: Hair Care and prevent damage

Proper hair care is crucial to maintain their health, brilliance and prevent damage, which can lead to hair loss. Here are some hair care tips:

• Correct hair washing:
  • Washing frequency: The frequency of washing the hair depends on the type of hair and activity. Bold hair may need more frequent washing than dry hair. In general, it is recommended to wash your hair no more often than necessary, so as not to dry them.
  • Choosing shampoo: Choose a shampoo that is suitable for your hair type. Avoid shampoos containing aggressive sulfates, such as SLS (sodium lairal sulfate) and Sles (sodium lauretsulfate) that can overdose hair.
  • Washing technique: Apply shampoo only to the scalp and massage it with your fingertips. Avoid hair friction among themselves, as this can lead to damage. Rinse the shampoo thoroughly with warm water.
• Using air conditioning:
  • Application of air conditioning: Apply the air conditioner to the hair from the middle to the ends. Avoid applying the air conditioner to the scalp, as this can lead to fat content.
  • Exvert time: Leave the air conditioning on the hair for a few minutes, as indicated on the package so that it moisturizes and smoothes the hair.
  • Testing the air conditioner: Rinse the air conditioner thoroughly with cool water.
• Hair drying:
  • Use of towel: Gently get your hair with a towel to remove excess moisture. Avoid hair friction with a towel, as this can lead to damage.
  • Drying with a hairdryer: If you use a hairdryer, use it at low temperature and with a quantity nozzle. Keep the hair dryer at a distance from your hair and constantly move it. Avoid prolonged drying of hair with hot air, as this can overdose and damage them.
  • Drying in the air: If possible, let your hair dry naturally.
• Combing hair:
  • CHOSE CHIED: Use a comb with wide teeth or a soft brush for combing hair.
  • Combing technique: Comb the hair carefully, starting from the tips and gradually moving to the roots. Avoid sharp combing, as this can lead to brittle hair.
  • Combing wet hair: Wet hair is more vulnerable to damage, so be especially careful when combing wet hair. Use air conditioning to facilitate combing.
• Sun protection:
  • Use of sunscreen for hair: Use the hair sunscreen to protect them from ultraviolet rays.
  • Wearing hats: Wear hats to protect the hair and scalp from the sun.
• Avoid tight hairstyles:
  • Traction alopecia: Tight hairstyles, such as braids and horse tails, can exert excessive pressure on the hair follicles and lead to traction alopecia.
  • Free hairstyles: Give preference to free hairstyles that do not pull the hair.
• Limit the use of thermal tools:
  • Hair damage: The frequent use of thermal tools, such as ironing, curling iron and hair dryers, can damage the hair and lead to their brittleness and dryness.
  • Protective funds: If you use thermal tools, be sure to use protective hair products to reduce damage.
• Avoid aggressive chemical procedures:
  • Hair damage: Aggressive chemical procedures, such as staining, lightening and chemical curls, can damage the hair and lead to brittleness and loss.
  • Professional procedures: If you plan to carry out chemical procedures, contact a professional hairdresser.
• Regular haircut:
  • Removing split ends: Regular haircut helps to remove split ends and prevent their spread along the entire length of the hair.
  • Maintaining hair health: A haircut helps maintain health and hair shape.
• Night hair care:
  • Using silk or satin pillowcases: Silk or satin pillowcases help reduce hair friction during sleep, which can prevent their brittleness and confusion.
  • Shooting hair into a braid: Rating hair in a free braid at night can help prevent their confusion and damage.

Additional tips:

• Regularly do scalp massage: Scalp massage can improve blood circulation and stimulate hair follicles.
• Use natural hair oils: Natural oils, such as coconut oil, argan oil and jojoba oil, can moisturize and nourish hair.
• Do not comb your wet hair: Wet hair is more vulnerable and easily break. If you need to comb wet hair, use a comb with wide teeth and apply air conditioning.

Chapter 6: Myths and Elorations of Hair growth

There are many myths and misconceptions about hair growth that can mislead people who seek to improve their hair. It is important to know the truth in order to make reasonable decisions about hair care and treatment of hair loss.

• Myth: Frequent hair cutting accelerates their growth.
  • Reality: Hair cutting does not affect hair growth rate. Hair grows from hair follicles located under the skin of the head, and the haircut does not affect this process. Cutting the hair removes split ends, which improves the appearance of the hair and prevents its brittleness, but does not affect the growth rate.
• Myth: hair loss is always a sign of a serious disease.
  • Reality: Hair loss can be caused by many factors, including genetics, hormonal changes, stress, diet, medicine and hair care. In some cases, hair loss can be a sign of a serious disease, such as thyroid disorders or an autoimmune disease, but most often this is due to other factors.
• Myth: Shampoo can stimulate hair growth.
  • Reality: Shampoo is designed to cleanse the hair and scalp. He cannot get into the hair follicles and stimulate hair growth. Some shampoos contain ingredients that can improve the health of the scalp, such as antioxidants and anti -inflammatory substances, but they do not stimulate hair growth.
• Myth: The use of a certain comb can accelerate hair growth.
  • Reality: The type of comb that you use does not affect hair growth rate. However, the use of a comb with wide teeth or