Title: What’s in hair
Hair is a part of our body that may seem simple, but actually contains rich structures and components. In recent years, research and discussion about hair have emerged in endlessly, especially the health, care and scientific ingredients of hair have become hot topics. This article will delve into the composition of hair and present relevant research results through structured data.
1. Basic structure of hair
Hair is mainly composed of three parts: hair scales, cortex layer and medulla layer. Each layer has its own unique features and ingredients.
| structural layer | Main ingredients | Function |
|---|---|---|
| hair cuticle | keratin | Protect hair from external damage |
| cortex | Melanin, keratin | Determine hair color and strength |
| medullary layer | air bubbles, lipids | Provides elasticity and volume to hair |
2. Chemical components in hair
Hair contains not only protein but also a variety of trace elements and chemicals. Here are the common chemical ingredients in hair and their effects:
| chemical composition | Content (%) | function |
|---|---|---|
| keratin | 65-95 | Provides hair strength and resilience |
| Moisture | 10-15 | Keep hair soft and elastic |
| Lipids | 1-9 | Prevent hair dryness and breakage |
| Trace elements (iron, zinc, etc.) | Trace amount | Affects hair growth and health |
3. Microorganisms in Hair
In recent years, studies have discovered the presence of a variety of microorganisms on hair, which are closely related to scalp health. Here are the common types of microbes in hair and their effects:
| Microbial species | common locations | influence |
|---|---|---|
| Malassezia | scalp | May cause dandruff and seborrheic dermatitis |
| Staphylococcus aureus | hair follicle | Overbreeding may cause folliculitis |
| Propionibacterium | scalp | Maintain scalp microecological balance |
4. Pollutants in hair
In modern life, hair is easily affected by environmental pollutants. The following are common contaminants in hair and their sources:
| pollutants | Source | Potential hazards |
|---|---|---|
| Heavy metals (lead, mercury, etc.) | air pollution, hair dye | May affect the nervous system |
| polycyclic aromatic hydrocarbons | car exhaust, smoking | Cancer risk |
| silicone oil | Shampoo, conditioner | Long-term use may lead to hair dependence |
5. How to protect hair health
Now that you understand your hair's composition and potential problems, it's even more important to protect your hair's health. Here are some practical hair care tips:
1.Regular cleaning: Use mild shampoo to avoid dry scalp due to excessive cleansing.
2.Supplement nutrition: Eat more foods rich in protein, vitamins and minerals, such as fish, nuts and green leafy vegetables.
3.Reduce chemical treatments: Try to avoid frequent hair dyeing and perming to reduce the damage of chemical substances to hair.
4.sun protection: Ultraviolet rays can damage hair. Wear a hat or use sunscreen hair care products when going out.
5.Prune regularly: Cut off split ends to keep hair neat and healthy.
Conclusion
Hair is not just a part of your appearance, it is a barometer of your health. By understanding the composition and potential problems of hair, we can better care for it and keep it healthy and beautiful. I hope the structured data and suggestions in this article can provide you with valuable reference.
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