MUA Product Knowledge & Cosmetic Ingredients 2 — Questions and Answers
Question 1: What does the term 'emollient' mean in cosmetic ingredient science?
- A preservative that prevents bacterial growth
- An ingredient that softens and smooths the skin surface (Correct answer)
- An SPF booster
- An exfoliating compound
Correct answer: An ingredient that softens and smooths the skin surface
Emollients soften and smooth skin by filling in gaps between skin cells, improving texture and creating a barrier.
Question 2: Mica in an eyeshadow or highlighter formulation is responsible for providing what effect?
- Matte finish
- Shimmer, sparkle, and pearlescent effects (Correct answer)
- Long-wear adhesion
- Oil control
Correct answer: Shimmer, sparkle, and pearlescent effects
Mica is a naturally occurring mineral that reflects light, creating shimmer, glitter, and pearlescent effects in cosmetics.
Question 3: Which preservative class is commonly found in cosmetics and has been the subject of discussion due to concerns about hormonal disruption?
- Parabens (Correct answer)
- Glycerin
- Ceramides
- Peptides
Correct answer: Parabens
Parabens are preservatives widely used in cosmetics that have been studied due to potential estrogenic effects, leading many brands to formulate paraben-free products.
Question 4: A client with sensitive skin reacts to fragrance in products. The ingredient label term that indicates fragrance-free is absence of what labeling term?
- 'Non-comedogenic'
- 'Parfum' or 'fragrance' (Correct answer)
- 'Hypoallergenic'
- 'Dermatologist-tested'
Correct answer: 'Parfum' or 'fragrance'
'Parfum' or 'fragrance' on an ingredient list indicates added scent; its absence confirms the product is fragrance-free.
Question 5: What is the function of a humectant ingredient in skincare and makeup formulations?
- Prevent oxidation of oils
- Attract and retain moisture in the skin (Correct answer)
- Provide color pigmentation
- Create a waterproof barrier
Correct answer: Attract and retain moisture in the skin
Humectants attract water from the environment and deeper skin layers to the surface, keeping skin hydrated and plump.
Question 6: Which ingredient in mascara provides the primary film-forming and lash-coating property?
- Iron oxide
- Beeswax or carnauba wax (Correct answer)
- Retinol
- Salicylic acid
Correct answer: Beeswax or carnauba wax
Waxes such as beeswax and carnauba wax coat and separate lashes, providing the thickening and lengthening film in mascara.
MUA Product Knowledge & Cosmetic Ingredients 2
What does the term 'emollient' mean in cosmetic ingredient science?