Lipids Flashcards

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1
Q

Are plant oils/esters polar or non-polar

A

Polar

Glycerine backbone

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2
Q

Are mineral oils polar or non polar?

A

Non-polar

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3
Q

Are silicones polar or non-polar?

A

Non-polar

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4
Q

What is the recommended combined input of lipids in a serum?

A

3-3.5% emulsifier free

Up to 5% with emulsifier

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5
Q

Recommended combined lipid input for a cream cleanser?

A

Up to 3% lipids and up to 3% super fatting agents

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6
Q

Recommended combined total lipid input for an O/W cream/lotion

A

Typically 10% (7-12%)

May be up to 15%

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7
Q

What is the recommended combined input of lipids in a body butter?

A

Up to 15%
Limit wax input to 2-3% maximum to avoid waxy drag
Limit low melting point butters eg Shea, coconut oil, mango etc to 10% maximum to avoid climate induced viscosity changes

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8
Q

What is the recommended combined input of lipids in a W/O cream/lotion

A

Typically 50-70%
May be up to 80% or more
Use light lipids: esters, mineral oils, silicones, to lighten skin feel

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9
Q

What is the recommended combined input of lipids in a balm?

A

Up to 100% with waxes
Limit low melting point butters to avoid climate viscosity changes
Check compatibility of polarity to avoid syneresis

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10
Q

What is syneresis?

A

Will sweat, drops of water

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11
Q

What is the recommended combined input of lipids in a shampoo/shower gel?

A

Up to 1% straight lipid
Up to 3% if non-ionic surfactant refattening agent
Up to 6% if silicone esters (copolyols/PEG/PPG silicones)
If Amodimethicone, refer to supplier recommended input

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12
Q

What is the recommended combined input of lipids in a Conditioner?

A

Up to 3% straight lipids, including volatile silicones
Up to 6% if silicone esters (copolyols/PEG/PPG silicones)
If Amodimethicone, refer to supplier recommended input

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13
Q

What are synthetic lipids?

Give 3 examples

A

Lipids that are made not natural

  1. Mineral oil
  2. Petroleum
  3. Paraffin wax
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14
Q

What is a superfatting agent?

A

Superfatting agents are lipid derivatives, made partially hydrophilic (using ethoxylation) -use in wash off products

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15
Q

What is a volatile silicone?

Give an example

A

A silicone that will evaporate
Never heat them
Cycolmethicone
Amodimethicone

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16
Q

What lipids would you use if wanting a light skin feel?

A

Light esters
Low molecular weight silicones
Low molecular weight mineral oils

17
Q

What lipids would you use if wanting a medium skin feel?

A

Triglycerides
Medium feel esters
High molecular weight silicones
High molecular weight mineral oils

18
Q

What lipids would you use if wanting a heavy skin feel?

A

Natural lipids (plant oils)
Petroleum
Lanolin