Science of Hair Care

Anna Farrell Switzerland

Understanding the Science of Hair Care

How many women experience hair problems?

To understand these problems, it is important to first dive into the science of hair care. Your hair is made up of a protein called keratin. It consists of three layers – the medulla, the cortex, and the cuticle. 

The science of your best hair care - hair structure

Medulla, and how to protect it?

The first layer is medulla. It is the inner layer of your hair. While there is some debate among scientists regarding the function of the medulla, it is believed by some that it could potentially regulate hair growth and help maintain moisture levels in the hair. On the other hand, others argue that it may not have a significant impact on your hair health. However, it’s worth noting that the medulla’s presence or absence can help identify different hair types, with wavy hair typically having a larger medulla than finer hair. 

How can you protect medulla? – Simple. Have healthy eating habits, maintain a healthy lifestyle and avoid harmful hair ingredients. Both can help improve your hair’s overall health from the inside out.


The second layer is cortex. It is is the middle layer that provides hair’s strength, elasticity, texture, and color. The cortex contains melanin, the pigment that gives hair its color. The amount and type of melanin in the cortex determine the hair’s color, whether it’s blonde, brown, black, or red.

What happen when you do not take care of cortex? – You will have weakened, brittle and dry hair. Does it sound familiar to you? If yes, you should immediately start using natural hair products that provide nourishment, hydration, and protection. 


And the third layer is cuticle. It is the outer layer that protects the hair from damage. 

The main function of the cuticle is to prevent damage to the above mentioned inner layers of the hair (cortex and medulla), by protecting it from external factors such as heat, chemicals, and environmental factors like wind, pollution, and UV rays. 

What happen when you do not take care of cuticle? – Damaged cuticles can cause hair breakage, split ends, and a lackluster hair appearance. Therefore, it’s essential to take care of yourself and your hair cuticle by using protective nourishing products, avoiding excessive heat styling and harmful hair ingredients.

"It is important to distinguish between hair care facts and myths to make well-informed decisions when it comes to maintaining healthy hair”
Anna Farrell Switzerland
Anna Farrell

Tips for applying the science of hair care to achieve shiny and nourished hair

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To keep your hair shiny and nourished, choose a shampoo that is formulated with mild, non-irritating ingredients that cleanse the hair without stripping it of its natural oils. It is usually free of harmful for your hair ingredients like sulphates, silicones, parabens. These ingredients can strip away natural oils from your hair and scalp, leaving it dry, dull and damaged.


To keep your hair shiny and nourished, you need to use hair conditioner. It helps to lock in moisture, prevent breakage, and detangle your hair. Use a deep conditioning treatment once a week to nourish and repair your hair.


To keep your hair shiny and nourished, avoid regular heat styling. These tools can damage your hair, making it dry, damaged and brittle. If you must use heat styling tools, use a heat protectant spray and avoid using high temperatures. For fine, thin or damaged hair, it is best to use around 150°C to 170°C degrees Celsius. For thicker, wavy hair, would be better to use 175°C  to 200°C.


To keep your hair shiny and nourished, stick to a healthier chooses of your food. Foods rich in protein (lean meats, fish, eggs, nuts, seeds, and legumes), omega-3 fatty acids (salmon, sardines, and mackerel, as well as chia seeds and walnuts), and vitamin A (sweet potatoes, carrots, spinach, and kale) and vitamin C (fruits, strawberries, kiwi and broccoli) can help to nourish your hair from the inside out.


To keep your hair shiny and nourished, protect them from the sun exposure. Just like your skin, your hair can be damaged by the sun's UV rays. To protect your hair, wear a hat or use a leave-in conditioner with SPF when spending time in the sun.


To keep your hair shiny and nourished, regular trim your hair. That would help to keep split ends, preventing further damage to your hair. Aim to get a trim every six to eight weeks to keep your hair healthy and shiny.

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Test your knowledge about the Science of Hair Care

According to what we have learned about the science of hair care, what nourishes and keeps your hair healthy?

Consider, and then flip
Use gentle shampoo on your hair; Regularly condition your hair; Avoid frequent curling iron use; Keep a healthy lifestyle with balanced nutrition; Protect your hair the Sun exposure; Trim your hair regularly.
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