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Kinds of Cosmetics Components of Cosmetics Classification of Cosmetics About Emulsion

Kinds of Cosmetics Components of Cosmetics Classification of Cosmetics About Emulsion Check points of Cosmetics. What is Cosmetics?. Science of Mixing!

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Kinds of Cosmetics Components of Cosmetics Classification of Cosmetics About Emulsion

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  1. Kinds of Cosmetics Components of Cosmetics Classification of Cosmetics About Emulsion Check points of Cosmetics What is Cosmetics? • Science of Mixing! • We need to mix all the materials without any chemical reactions in general, and expect the individual characteristic from each, and sometimes their synergistic effect as the better case.

  2. <Kinds of Cosmetics>

  3. <Components of Cosmetics>

  4. <Classification of Cosmetics>

  5. Mechanism of Aerosol

  6. Stability check ; Odor, Color, Appearance pH, Viscosity Instant test – Heat, Centrifuge… <About Emulsion> How to formulate Emulsion; • Stability Safety • Key point would be Surfactant! • Difference Speciality / Functionals Obstruction to Emulsion; • Sun light (UV- light) UV- absorber • Heat very close to ageing • Microbe Preservative • Metal ion Chelating agent | • Others --- oxidation, vibration, etc.

  7. <About Emulsion> Surfactant ; HLB Solubility in Water HLB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 insoluble crude dispersion milky dispersion with hard stirring stable milky dispersion almost transparent soluble

  8. <About Emulsion> Phase inversion– Technique to make Stable emulsion (O/W) and to reduce Surfactants Water phase Oil phase Actually

  9. <About Emulsion> Ionic property of the materials Surfactant Polymer • Anionic • Cationic • Nonionic • (Amphoteric) Setting effect, Holding effect Wash ability, Foaming effect Compatibility with Skin and Hair, Anti-static / Anti-bacteria effect Conditioning effect (Better comb-ability, Anti-static effect) Compatibility with any ionics, Less irritation Better compatibility Cationic at acidic side Anionic at alkali side

  10. <Check points of Cosmetics> (summary) • Stability • Safety • Skin (Hair) feel - Texture [light/heavy, fresh/moisturizing…] • Handling - Package suitability… • Favorite - Fragrance, Color, Package design… • Effectiveness

  11. <Check points of Cosmetics> (details) • Stability – Appearance, Odor, Color • Any ingredient should be kept at the recovery rate, >90% under RT after 3 years. [becoming World standard]Substitute way (e.g., under 40C after 6 months) should be up to each customer. • Safety • Kinds/Amounts of the preservatives and the fragrances will influence (so often) not only the stability of the final formula, but also the safety of it. • Preservatives should be decided after considering the cleanliness of each raw material, manufacturing facilities, packages and their consumers. • Effectiveness • Any effectiveness (e.g., SPF, Whitening effect, Anti-aging effect) should be confirmed by each customer, according to PL concept [World standard]. Same chemicals can not always perform the same!

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