Characteristics of Cosmetics

10 Questions

What is the process called when dispersed pigments and the finished product are compared to a previously approved standard color?

Color matching

What is the main concern with the use of lead in lip makeup products?

Safety concerns

What is the purpose of sharpening a lip liner before use?

To allow the tip to be sharpened to a certain point

What is the term for the evaluation of lip makeup products' ability to moisturize the lips?

Efficacy

What is the tool used to mill the whole mixture in the extrusion process?

Roller mill

What is the term for the cracks or breaks that can occur in lip makeup products?

Chipping or Cracking

What is the purpose of evaluating the break strength of lip makeup products?

To ensure the product does not bend or break during application

What is the term for the unwanted appearance of colorful lines on the lip makeup product?

Streaking

What is the tool used to evaluate the color brightness of lip makeup products?

Spectrophotometer

What is the term for the formulation of lip makeup products using a special technique?

Extrusion

Study Notes

Required Qualities and Characteristics of Lip Makeup Products

Attractive shade and homogeneous color when applied
Good coverage and long-lasting effect
Pleasant taste and smell
Easy to apply and UV protection
No staining or bleeding into the fine lines surrounding the lips

Technical Qualities of Lip Makeup Products

Long-term stability and dermatological safety
Creamy gliding without a greasy sensation
Firm adherence to lips without being brittle and tacky
High retention of color intensity without any change in shade
Appropriate rigidity and hardness
Resistance to temperature from 39°F to 104°F (-4°C to 40°C) without hardening or running

Ingredients Used in Lip Makeup Products

Waxes (beeswax, candelilla wax) act as structuring agents, providing lipsticks with rigidity and solidity
Oils (plant oils, butters) provide a slippery and soft texture to the formulations and have a moisturizing effect as emollients
Examples of oils: castor oil, grape-seed oil, almond oil, meadowfoam oil, olive oil, coconut oil, palm oil, and triglyceride
Examples of butters: avocado butter, shea butter, and cocoa butter

Types of Lip Makeup Products

Lipsticks: designed to enhance the appearance of the lip by imparting color and gloss
Lip Glosses: designed to give the lips a glossy luster and sometimes, subtle color
Lip Liners: designed to redefine the outline of the lips
Lip Balms (Lip Protectants): designed to prevent dryness of the lips and relieve chapping

Effect of Lip Makeup Products on Human Lips

Long-wearing lipsticks tend to dry the lips
Lipsticks and lip balms with UV filters block the sun's rays and prevent penetration
Lip plumping lipsticks tend to dry the lips
Lip balms containing sunscreens prevent the reoccurrence of herpes simplex
Lip cancer occurs in men more frequently than in women

Extrustion Technique

Pencil form lip makeup products are formulated by a special technique called "extrusion"
A roller mill is used to mill the whole mixture

Typical Quality Problems of Lip Makeup Products

Aeration
Laddering
Chipping or Cracking
Deformation
Cratering
Streaking
Sweating
Mushy Failure
Seams
Bleeding

Evaluation of Lip Makeup Products

Break Strength: must not bend, crumble, crack, or break during application
Color Matching: a process when dispersed pigments and the finished product are compared to a previously approved standard color
Color Brightness and Streakiness: evaluated visually and using a spectrophotometer or colorimeter
Rigidity of Lip Liner Pencils: must allow the tip to be sharpened to a certain point to provide a defined line upon application
Moisturizing Effect: lip makeup products claiming to moisturize the lips should truly provide moisturization on application