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Scientific Concepts For Cosmetology Question and Answers [100% Correct] 2024/2025 Latest Release

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Scientific Concepts For Cosmetology Question and Answers [100% Correct] 2024/2025 Latest Release What is the primary function of the pH scale in hair care products? **ANS** The pH scale helps determine whether a product is acidic or alkaline, which affects hair health and color retenti...

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  • October 19, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Scientific Concepts For Cosmetology
Question and Answers [100% Correct]
2024/2025 Latest Release

What is the primary function of the pH scale in hair care products?

**ANS** The pH scale helps determine whether a product is acidic or alkaline, which affects hair health
and color retention.



What is the role of keratin in hair?

**ANS** Keratin is a fibrous protein that provides strength, structure, and resilience to hair.



How do alpha hydroxy acids (AHAs) benefit skin care?

**ANS** AHAs exfoliate the skin, improve texture, and promote cell turnover.



What is the significance of the lipid barrier in skin health?

**ANS** The lipid barrier protects against moisture loss and environmental damage.



What type of light is most damaging to hair?

**ANS** UV light from the sun can cause significant damage to hair proteins and structure.



How does collagen affect skin elasticity?

**ANS** Collagen provides structure and firmness to the skin, maintaining its elasticity.



What is the difference between comedogenic and non-comedogenic ingredients?

**ANS** Comedogenic ingredients can clog pores and lead to acne, while non-comedogenic ingredients
do not.



What role does salicylic acid play in acne treatment?


1

, **ANS** Salicylic acid penetrates pores to exfoliate and reduce inflammation, helping to treat acne.



How do essential oils benefit scalp health?

**ANS** Essential oils can promote circulation, reduce dandruff, and enhance hair growth.



What is the purpose of a patch test before applying a new product?

**ANS** A patch test helps determine if an individual is allergic to the product, preventing adverse
reactions.



How does moisture retention impact hair health?

**ANS** Proper moisture retention prevents dryness and brittleness, keeping hair healthy and
manageable.



What is the function of emollients in skin care products?

**ANS** Emollients soften and smooth the skin by filling in gaps between skin cells.



How do antioxidants protect the skin?

**ANS** Antioxidants neutralize free radicals, reducing oxidative stress and preventing premature aging.



What is the role of SPF in skin care?

**ANS** SPF protects the skin from UV radiation, reducing the risk of sunburn and skin cancer.



How does hyaluronic acid benefit skin hydration?

**ANS** Hyaluronic acid retains moisture in the skin, helping to keep it plump and hydrated.



What is the function of a toner in a skincare routine?

**ANS** A toner helps remove residual impurities and prepares the skin for better absorption of
subsequent products.



What are the effects of excessive heat styling on hair?


2

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