**Food supplements** used to prevent hair loss and promote healthy hair growth usually contain the essential nutrients that hair needs. These supplements nourish and strengthen hair follicles and support the growth cycle. Here are some common food supplements and ingredients that can be effective against hair loss:
 1. **Biotin (Vitamin B7)**
 Biotin is one of the most well-known supplements that can support hair health and help reduce hair loss. Biotin increases the production of keratin, the structural component of hair, and helps strengthen hair. A deficiency in biotin can lead to hair loss, so it is important to get enough.
 - **Mechanism of action**: Biotin can increase the rate of hair growth and help hair become stronger.
 2. **Zinc**
 Zinc is a critical mineral for hair health. One of the causes of hair loss is zinc deficiency. This mineral helps repair hair roots and promote healthy growth. It also supports the proper functioning of hair follicles.
 - **Mechanism of action**: Zinc promotes hair growth and can help unclog pores by balancing oil production.
 3. **Iron**
 Iron deficiency is one of the most common causes of hair loss. Iron increases the oxygen-carrying capacity of red blood cells, ensuring healthy nutrition of hair follicles. Iron supplements are especially beneficial for people with iron deficiency anemia.
 - **Mechanism of action**: Iron supports the growth phase by carrying sufficient oxygen to the hair follicles.
 4. **Vitamin D**
 Insufficient vitamin D levels are another factor that can lead to hair loss. Vitamin D helps regulate the healthy functioning of hair follicles and the hair growth cycle. It can also promote hair follicle regrowth.
 - **Mechanism of action**: Vitamin D can reduce hair loss by stimulating hair follicles and supports healthy hair growth.
 5. **Omega-3 Fatty Acids**
 Omega-3 fatty acids nourish the scalp, prevent dryness and dandruff, and promote hair growth. Omega-3s can help hair look shinier and healthier. They also help prevent hair loss by reducing inflammation.
 - **Mechanism of action**: Omega-3 fatty acids moisturize the scalp, reduce inflammation and nourish the hair follicles.
 6. **Saw Palmetto**
 Saw palmetto is an herbal supplement that may be particularly effective in combating male pattern hair loss (androgenetic alopecia). It may help prevent hair loss by reducing DHT (dihydrotestosterone) levels. DHT is one of the main causes of male pattern hair loss.
 - **Mechanism of action**: Saw palmetto inhibits the production of DHT, preventing the weakening of hair follicles and slowing down hair loss.
 7. **Keratin**
 Keratin is a protein that is the structural component of hair. Keratin supplements can help strengthen hair and reduce breakage. Improving the structure of hair allows for healthier, more resilient hair to grow.
 - **Mechanism of action**: Keratin strengthens the hair and prevents breakage and loss.
 8. **Silica**
 Silica is an important mineral that supports the structural integrity of hair. It increases the elasticity of hair, making it look stronger and healthier. It can also help hair grow faster.
 - **Mechanism of action**: Silica prevents hair loss by keeping the hair strong and healthy.
 9. **Amino Acids (L-cysteine, L-methionine)**
 Amino acids are important for the structural integrity of hair. In particular, **L-cysteine** and **L-methionine** are essential for the production of keratin in hair. These amino acids can help strengthen hair and prevent breakage.
 - **Mechanism of action**: Amino acids strengthen the protein structure of the hair and support its healthy growth.
 10. **Panthenol (Vitamin B5)**
 Panthenol prevents dryness and breakage by maintaining the moisture balance of the hair. It also increases the shine of the hair and makes it look healthier.
 - **Mechanism of action**: Panthenol helps moisturize the hair and prevent breakage, which can reduce the risk of hair loss.
 ---
 Conclusion
 Food supplements used to prevent hair loss and support healthy hair growth usually contain essential nutrients that hair needs. Supplements such as biotin, zinc, iron, vitamin D, and omega-3 fatty acids can help hair grow stronger, healthier, and faster. However, it is important to consult a health professional before using any supplements, as excessive intake of certain vitamins and minerals can lead to health problems.