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In December my class and I visited the science lab. The picture down below clearly shows one strand of red hair overlapping a green strand of hair, and shows the colour brown, this demonstrates to me that a green colour would neutralise a red colour to make it a brown colour.

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For my Skills Demonstration I gathered five hair dressing products, i wrote the name of each product on a a4 piece of paper.
I gathered 5 Petri dishes and litmus paper. I put each product into a different Petri dish and placed a litmus paper in it it. For my permanent colour I mixed milkshake 6.66 and 20 vol together at the ratio of 1:1.5 making sure I was wearing PPE at all times. Once I had all the hairdressing products in the Petri dish and the litmus paper was placed in it I waited 5 minutes. I slightly dried the litmus paper using kitchen towel.
I then recorded my results using the p.H scale. And stuck them on my a4 page.
The results were was follow;
Silhouette mousse; p.H 7 (neautral)
Neutraliser; p.H 5 (acid)
Milkshake permanent colour; p.H 9 (alkaline)
Milkshake conditioner; p.H 4.5 (acid)
Kadus Shampoo; p.H 5 (acid)

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All products I tested are used regularly in hairdressing, I picked the products I feel I would use the most. Below is a short description on where you would expect to use each product.
Silhouette Mousse; Mousse adds volume to hair and often provides both conditioning and hold, without any clumps or build up. Hair mousse is applied to wet hair before drying and styling. Hair mousse can be used on nataurally curly or permed hair to reduce frizz and define curl.
The p.H of the mouse was 7 which is Neutral.
Neautraliser; After the perm lotion is washed off with warm water for five minutes and dried with a towel. Each rod is then rinsed with a neautraliser, which sets the new shape of the hair by reinserting the disulphide bonds. The neautraliser is used on someone who wants a perm. The p.H of the neautraliser is 5 which is acid.
Milkshake permanent colour; Permanent hair dyes are also known as "oxidation". A permanent colour pens the hair shaft and adds colour. A permanent colour is used on someone who wants a permanent hair colour change. A permanent colour lasts approximately 24 weeks.The p.h of the colour is 9 which is alkaline.
Milkshake conditonar; If hair is damaged or dry the cuticle layer stand out which makes the hair look dull, rough and out of condition.  Conditioners work by smoothing down these scales so your hair looks smooth and shiny. The conditioner locks all nutrients in and pollutants out. There fore a conditioner should used on hair that looks damaged or dry.The p.H of the conditioner is 4.5 which is an acid.
Kadus Shampoo; Hair produces natural oil called sebum, and shampoo is an emulsifier that captures and traps excess oil, dirt and product residue, which you then rinse out to clean the hair. The p.H of the shampoo is 5 which is an acid.

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1. When alkali ingredients are applied to the hair, it has an effect that leans in the other direction. Instead of closing of the cuticles, they open the cuticle which can make the hair look dull and feel rough. Alkali ingredients are often used in bleaches to help apply colours. Alkalis are also used in solutions used to perm or relax hair. Therefore alkali solutions are vital in the hairdressing industry.

Alot  of hair dressing products are acids. In an acidic solution, cuticle cells shrink and harden, making hair strong and stiff, but potentially brittle. Acids are found in dyes, shampoos and conditioners.

2.   A hairdresser can use an alkaline solution when perming or colouring someone's hair.
3. A hair stylist should not use an alkaline product on someone's hair if it akready after a service of using an alkaline product. For eg, if someone's hair has been permed you should not colour it the same day.
4. A hairdresser should use an acid solution such as shampoo on someone hair if it needs to be shampooed.
5. An acid solution should be used on someone if there is signs of scalp disorders. For eg, if during a consultation a hair dresser notices a reaction from a previous acid, the hairdresser should advise the client to see a doctor.

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What will happen to the cuticle layer & cortex?

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What will happen to the cuticle layer & cortex?

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Silhouette mousse;

Cuticle layer;  mousse smooths down the cuticle layer and leaves the surface of the hair looking shiny.

Neautraliser;

Cuticle layer; the neautraliser is what reforms the dusulfide bonds of the hair and sets the new curl pattern.

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When it is unsafe to use the products I tested.

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When it is unsafe to use the products I tested.

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Silhouette mousse; There are many chemicles in mousse. There is great benefits to mousse but there is also disadvantages. If mousse is not regulated it can cause;

Hair loss & Hair thining.

Dry hair.

Hair breakage.

It would unsafe to use mousse if you do not Shampoo your hair regularly as the problems stated above would happen.

Neautraliser;

It is unsafe to get a perm if your hair is coloured regularly with permanent hair colour or box colour, although if a consultation is done properly it is up to the hair stylist recommends it or not.

It is unsafe to get a perm if the hair is already damaged. Perms are made with very strong chemicles and the perm lotion has p.H of a 9.

A perm should never be done on the same day as a colour application as it could cause great damage to the hair and cause it to fall off.

Milkshake permanent colour;

It would be unsafe to colour someone's hair a permanent colour if there has been a perm done on it the same day.

It would unsafe to use a permanent colour on someone who has had box colour/supermarket colours in it before, without a test being done on a strand of hair the hair can fall off.

In regards to shampoo and conditioner it would never be unsafe but it's important that people use the correct shampoo and conditioner on their hair.

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This pictures shows various different hair products being tested to determine their p.H scale.

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This picture shows a split-end on a strand of hair.

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This is the bulb of the hair.

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This is a p.H scale. The p.H scale measures the acid and alkali values of any given substance.
All acid substances go from 1-6.
7 is neutral.
All alkali substances go from 8 - 14.
The acid mantle is formed from our sweat and sebum mixed together. It is normally 4.5/5.5.

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This picture shows the results from my p.H test.

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This is a picture of me doing my p.h test

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This picture shows three different strands of hair.
The blonde hair is coarse. The red hair is medium. The brown hair is fine.

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Hair tests.

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The hair was longer when wet.

The hair broke easier when dry.

The hair was easier to examine when dry.

The hair looked darker when dry.