Characteristics of a Good Cleanser

Question 1

What are the four characteristics of a good cleanser?

Answer 1

• Good viscosity
• Foaming
• No precipitates/ separation (all ingredients well solubilised)
• Reduced irritancy

Question 2

What are the four ways you can classify cleansers?

Answer 2

chemical nature and mildness, cleansing principles, foam-ability and product type.

Question 3

What are two ways in which you can adjust the viscosity of a cleanser and how does this work?

Answer 3

• adding salts

- adding co-surfactants

Question 4

What are the typical ingredients in cleansers?

Answer 4

surfactant, solvent, thickener

Question 5

How to improve foam stability?

Answer 5

1. Ionicsurfactants
2. Additives(glycerylethers,alcohols,amides
3. Polymers(cationic/quarterniumpolymers)
4. Gums/thickeners

Question 6

Methods to reduce irritancy:

Answer 6

1) Use only mild SA (non-ionics/
ethoxylated anionics)
2) Blend with amphoterics (betaines)
3) Polymer/ hydrolyse protein additives 
4) Refatting agents = refattening agents
5) Antioxidants

Question 7

Ingredients Causing Safety Concerns In Skin Cleansers

Answer 7

• Parabens
• Triclosan
• Sodium Lauryl Sulfate (SLS)
• Microbeads

Question 8

Water is an optimal environment for….

Answer 8

the growth of microorganisms

Question 9

How do you avoid clumping?

Answer 9

Can be avoided by properly dispersing and wetting out the polymer

Question 10

Bulk dispersion of the polymer with a non-solvent delays the rate at which…

Answer 10

the polymer swells and hydrates into water, thus minimizing clumping

Question 11

Define Rancidification

Answer 11

chemical decomposition of fats and oils *oxidation by oxygen, light, and elevated temperature. *hydrolytic by water, air, temp.