Chemical Compisition Flashcards
What are the two main ingredients in tinting products?
Vegetable dye, hydrogen peroxide.
Explain how the oxidation process occurs. Give one example.
Oxidation is the chemical reaction which occurs when substances combine with oxygen. Hydrogen peroxide mixed with vegetable dye and combined with oxygen.
How and why does tanning occur?
Melanin or pigmentation builds up to reduce the penetration of UV Rays.
Two physical symptoms/examples of what you would see on a person with tanning from long term sun exposure.
Uneven pigmentation (hypopigmentation/hyperpigmentation), breaking down of collagen.
How and why does photo ageing occur?
UV penetrate the dermis damaging the protein supporting fibres
Give 2 physical symptoms/examples of what you see from photo ageing.
Skin becomes rough in texture, permanate dilated capillaries occur.
What fibre is damaged from photo ageing?
Collagen fibre
How and why does epidermal thickening occur?
Stratum coreneum increases in thickness reducing UV penetration to protect the skin.
2 physical sympoms/examples of what you might see when epidermal thickening occurs?
Roughened skin texture, thickened areas of the skin.
List two important properties (facts) of irfared light
It gives of heat, not light. Ranges between around 770 - 4000 nm in wave length.
How is Ir light used in clinic?
Heating of the body tissues relax a tense client and relieve muscular tension and or pain.
What are the effects/benefits of using IR light on the skin and body tissues?
Increase in circulation, pain relief, increase in glandular activity.
List 6 health and safety rules when using light therapy in clinic.
- Equipment is serviced regularly
- No water around equipment
- Protective eyewear is worn
- Equipment is sanitised
- All visits are recorded
- Treatment plan is designed to suit the client.
What are some important angle and distance rules that you need to be aware of when using Ir light therapy?
90° right angle tothe area being treated for maximum intensity.
Distance from the lamp to the area being treated is doubled and the intensity of the rays are quartered.
What is an anode?
Positive electrode!
