LAWS & REGULATIONS
INGREDIENT BASICS & CHEMISTRY
SURFACTANTS & EMULSIONS
EMOLLIENTS & HYDRATORS
DELIVERY SYSTEMS & VEHICLES
100

This federal agency is responsible for reviewing and regulating cosmetics, including safety and labeling under the FD&C Act.


Answer: What is the FDA (Food and Drug Administration)?

100

These ingredients do most of the actual work of cleaning, spreading, and keeping products stable, making up the bulk of a cosmetic product.


Answer: What are functional ingredients?

100

 These compounds reduce surface tension between the skin and the product, acting as cleansing agents and emulsifiers.


Answer: What are surfactants?

100

These oil or fatty substances lubricate and physically coat the skin surface, trapping water underneath.


Answer: What are emollients?

100
  • These substances carry other ingredients into the skin to make them more effective.

Answer: What are vehicles?

200

Under federal law, cosmetics are legally distinguished from this category of products, which are intended to diagnose, cure, mitigate, treat, or prevent disease.


Answer: What are drugs?

200

Also known as active agents, these ingredients cause the actual changes in the appearance of the skin (such as hydration or exfoliation).


Answer: What are performance ingredients?

200

This specific type of surfactant is used in cleansers to lift oil, dirt, and makeup from the skin.


Answer: What is a detergent?

200

Highly effective emollient oils derived from plant, nut, or seed sources are rich in these essential building blocks for skin health.


Answer: What are essential fatty acids (EFAs)?

200

These closed-lipid sphere vesicles encapsulate and protect performance ingredients, releasing them deep into specific layers of the skin.


Answer: What are liposomes?

300

This law requires cosmetic manufacturers to list all ingredients on the label in descending order of predominance.


Answer: What is the Fair Packaging and Labeling Act (FPLA)?

300

This is the most frequently used cosmetic ingredient of all, serving as both a vehicle and a functional base.


Answer: What is water?

300

These substances act as bridges to allow oil and water to mix, creating a stable blend.


Answer: What are emulsifiers?

300

These substances are water-binding agents that draw moisture to the skin from the dermis or the atmosphere.


Answer: What are humectants?

300

These tiny, advanced delivery systems use microscopic hollow spheres or polymers to slowly and continuously release active ingredients.


Answer: What are microsponges (or polymers)?

400

This term refers to cosmetic products and ingredients that are not tested on animals at any stage of production.


Answer: What is cruelty-free?

400

Ingredients that are beneficial to skin that is prone to breakouts are rated on a scale of 0 to 5 for this property (meaning they do not clog pores).


Answer: What is non-comedogenic?

400

 This type of emulsion mixes water droplets into oil (often heavier and richer creams).


Answer: What is a water-in-oil (W/O) emulsion?

400

This extremely popular humectant can hold over 1,000 times its weight in water and is naturally found in the skin.


Answer: What is hyaluronic acid?

400
  • This method of encapsulation involves using nanotechnology to create extremely small particles for deeper product penetration.

Answer: What are nanoparticles?

500

While the FDA does not require approval for cosmetics before they are sold, this group of independent experts reviews and assesses the safety of cosmetic ingredients.


Answer: What is the Cosmetic Ingredient Review (CIR)?

500

This term describes ingredients derived from plants, herbs, and flowers, though they are not automatically safer or more effective than synthetic chemicals.


Answer: What are botanicals?

500

This type of emulsion disperses tiny oil droplets throughout water (typically lighter weight and preferred for oily skin).

Answer: What is an oil-in-water (O/W) emulsion?

500

Emollients prevent moisture loss by slowing down this process, abbreviated as TEWL.


Answer: What is transepidermal water loss?

500
  •  Unlike standard vehicles that sit on the surface, advanced delivery systems are designed to improve product stability and enhance this key metric of efficacy.

Answer: What is penetration/bioavailability?