All people are born with hair on their head and many people decide to change it over their lifetimes. Some people cut it and others dye it and some people lighten their hair. So what causes your hair to lighten?
The hair on your head is comprised of a tough protein called keratin. There are two types of keratin. One being the α-keratins otherwise known as the alpha keratin which produces hair, horns, nails and hooves found on mammals and the other is called the β-keratins also referred to as the beta-keratin which is in charge of making scales, shells as well as reptile and bird claws. The keratin found on the human head is the alpha keratin this type of keratin is a fibrous structural protein, meaning that it is made of 18 amino acids. Amino acids are “anyone of a large group of organic compounds; the end product of the breakdown of protein.
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The most common and practiced method of lightening hair is through bleaching it. In the 1800s, “it was found that hydrogen peroxide was a gentler and safer chemical as compared to the other chemicals for hair bleaching” (human touch of chemistry, discovery of hair dye). Nowadays we still use hydrogen peroxide (h202) in our hair bleach and it is the main oxidizing agent in the alkaline solution which has a pH above 7. (hair bleach as a pH of 9-11)
Hydrogen peroxide has two hydrogen atoms and two oxygen and is a light blue liquid which looks clear in a solution, like bleach, and it decomposes, breaking apart, into water (H20) and oxygen (o) when it is heated or in the presence of substances like iron, copper, magnesium, nickel or chromium. Hydrogen peroxide works when decomposing, releases oxygen and breaks down the “hydrogen peroxide which causes oxygen atoms to attach to the molecule. This usually turns one or more of the double bonds into single bonds. This means the molecule no longer absorbs light the same way, and is either a different colour, or loses its colour
The hair of the scalp is longer and more flexible, while the hair of the eyebrows tends to be short and stiff. Oval shaped hair shafts produce wavy hair, flat hair shafts create curly hair and hair shafts that are perfectly round create straight hair. There are also different types of melanin, a natural compound responsible for the production of color in the eyes, skin and hair. There is yellow, brown and black melanin, each produced by melanocytes located at the follicle base. With age, melanin production decreases, causing greying of hair. (Applegate & Saunders, 2001, pp
Some existing Literature on Natural Hair The existing literature on ethnic and racial studies among African-Americans has focused on issues pertaining to beauty and body politics especially on natural hair. Spellers and Moffitt assert that the body politics that one assumes, guides how one relates to a particular political ideology in a particular society. Black natural hair is considered as a way by which the true identity of African women can be understood (Jacobs-Huey). It is a symbol of power among black women; it influences how people are treated by others.
hydrogen peroxide, (H2O2), a colourless liquid usually produced as aqueous solutions of various strengths, used principally for bleaching cotton and other textiles and wood pulp, in the manufacture of other chemicals, as a rocket propellant, and for cosmetic and medicinal purposes. Solutions containing more than about 8 percent hydrogen peroxide are corrosive to the skin. [3]
This enzyme speeds up the break down of hydrogen peroxide into water and oxygen, as enzymes are biological catalysts. [IMAGE]The reaction: Hydrogen peroxide Water + Oxygen Catalase -------- [IMAGE] 2H2O2 2H2O + O2 Apparatus: Hydrogen Peroxide, Several sticks of celery, Stand, boss and clamp, 100ml conical flask, 25cm3 burette, 1800cm3 beaker, Rubber bung with delivery tube, Distilled water, Large container filled with water, 10cm3 measuring cylinder, 10cm3 syringe, 20cm3 syringe, Blender, Knife, Ceramic tile, Electronic balance (correct to 2 decimal places), Sieve, Stopwatch/timer. The variables: There are many possible variables in this investigation, such as pH, temperature, the concentration of substrate and the concentration of the enzyme.
Hydrogen peroxide is a harmful substance which could seriously harm cells if left to build up. Subsequently it is needed to discover the ideal conditions required for the enzyme to work accordingly. A progression of experiments were set up to test how temperature, ph, concentration and an inhibitor would influence the reaction rate of Peroxidase. Peroxidase is obtained by the concentrate from a turnip. The technique used to monitor the response amongst Peroxidase and hydrogen peroxide is by acquainting a color with the blend. "The color Guaiacol ties to Peroxidase and ends up plainly oxidized as the hydrogen peroxide is diminished to water." When Guaiacol is oxidized, it changes color to dark brown. A Spectrometer passes light through a substance which then records the absorbance of spectrums. The Dye changes the color according to the rate of the reaction. The Spectrometer records how fast the reaction happening. Utilizing this data, You could hypotheses about the trials. As concentration of Peroxidase increase, so will the reaction rate. If an inhibitor is acquainted with the Peroxidase arrangement, it will diminish the rate of response. Any change in temperature or pH will deform the enzyme and influence the response rate. In this way, the Enzyme will have an ideal pH and temperature where it works generally
Our hair is more fragile than many people realize. It is divided into three layers, which consist of the cortex, the cuticle and the medulla. With healthy hair we have a water and air filled medulla and our cuticle is smooth. This moisture is very important to having beautiful healthy hair. When your hair gets damaged from heat, this will cause the moisture to be gone from your hair. Applying more heat to already damaged hair will cause it to become dry and brittle. It will break and frizz and become more unmanageable making most people frustrated with their hair style. As these damaged broken hairs start to regrow, they will grow out as new and undamaged hair. Any heat that is too hot or heat that is added to frequently will dry out your hair.
Hair grows about half an inch per month to six inches a year but can vary depending on the person. First, what exactly is hair? Based on WebMD, hair is made up of an extremely strong protein called keratin which is also found in the human skin, nails, and teeth. Expert cosmopolitan Cunnane Phillips explained that there are three different types of hair growth phases that an individuals hair goes through. The first phase is called anagen. This is the growth phase...
An Investigation into the Decomposition of Hydrogen Peroxide Aim: To investigate the rate of decomposition of H2O2 with different amounts of catalyst (MnO2). Hypothesis: When H2O2 and a catalyst are mixed together, the catalyst would break down H2O2 into water and oxygen. This will result in bubbles being produced. With the data of these oxygen bubbles, the rate at which H2O2 decomposed could be found out. 2H2O2 (l) à2H2O + O2 The controlwould be to maintain the same temperature (room temperature) and to use the same amount of hydrogen peroxide (10ml) in all the tubes.
Hydrogen peroxide (H2O2), according to Bryce Fredrickson (1999-2014), has many useful properties due to its extra oxygen atom. Hydrogen peroxide consists of two hydrogen atoms and two oxygen atoms, whereas water (H2O) consists of two hydrogen atoms and only one oxygen atom (Balcony Garden Web, 2016). Hydrogen peroxide has many uses including cleaning, bleaching, and a few health benefits (Fredrickson, 1999-2014), however the main focus of this research project is on plant growth.
Protein overload in natural hair is an issue many naturals encounter at one point or another. Proteins are essential for the maintenance of healthy hair. Not only is hair made up mostly of proteins but proteins are readily attracted to the hair and are easily absorbed by the hair’s surface. Additionally, water molecules are also attracted to proteins and will readily bond with them. Protein not only helps to attract and bind water to the hair but will also penetrate the hair to fix any weak areas in the protein structure of the hair, keeping it healthy and strong. It is for these reasons that proteins are added to hair products.
When approaching the topic of hair chemistry, one may think about the question, where does hair come from? Saclike holes called follicles are located all over the human body. At the bottom of these follicles are a cluster of papilla responsible for the growth of hair. As the papilla, otherwise known as hair bulbs reproduce to make new hair cells, the old ones are pushed up towards the surface of the skin causing the hair to grow longer. This may seem like a simple concept to grasp. However, the process of hair growth is a little more in depth.
Hydrogen Peroxide And Laundry - Use It To Brighten Your Clothes. retrieved November 15 2015, from stain-removal-101.com Web Site: http://www.stain-removal-101.com/hydrogen-peroxide-for-laundry.html
i.Taking alots oily fish such makeral and salmon which contains omega 3 & 6 fatty acid and vitamin D, helps to hydrate the scalp and strengthen hair follicles.For those who vegetarian consumer you may take flax seed oil, chia seed, lentils and soy protein. A balance diet helps in providing all essential nutrient that a hair requires to maintain its growth and hydration. They a rich with plant base protein.Most of the hair issue are caused by continuos level of stress causing our hair to break and fall easily.Well some part of our cells need to sacrifice to release our negative emotion and toxin that still survive in the body.Releasing through hair is one of the most
life it has gotten very dense white hair, that consists of different layers and lengths of fur.
combination of wood ash, fat, and water. This was a strong alkali which may have caused skin irritation, dryness, along with some other side effects. Hair and skin normally ranges from pH 4-6. The best type of shampoo is one that contains natural products with the least chemicals. The main ingredients in shampoo are a detergent that is attracted to both water and dirt, an oil to produce a lather and conditions. The detergent ions attach themselves to the grease or oil, then the other end is attracted to the water molecules, thus being removed and suspended from the hair follicle. Rinsing then removes the suspended