JIMMA UNIVERSITY
COLLEGE OF NATURAL SCIENCE
DEPARTMENT OF CHEMISTRY
REVIEW ON CHEMISTRY OF COMMERCIAL COSMETICS
AND THEIR HEALTH PROBLEMS .
BY: ABDU HUSSIEN
ADVISOR : TILAHUN YAI (M.Sc)
2022
JIMMA, ETHIOPIA
Presentation Outline
Introduction
Statement of the problem
Objective of the study
Significance of the study
Review Literature
Conclusion
Recommendation
Acknowledgements
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Introduction
 The word cosmetics derives from the Greek “kosmetike” meaning
technique of dress and ornaments, from kosmetikos, skilled in
ordering or arranging and that from cosmos, meaning amongst others
odor and ornaments .
 The FDA defines the term “soap” as a product in which the nonvolatile portion consists principally of an alkali salt of fatty acids,
i.e.; the traditional composition of soap; the product is labeled as
soap; and the label statements refer only to cleansing.
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Cont.…….
 The sub category of cosmetic products are; creams, lotions, face
masks, powders and color for skins (eyes and lips), shampoos, oils,
waving agents, dye and its removers for the hair, nail polish,
deodorants, tooth pastes and other personal hygiene products,
perfumes, and aromatic substances
 Cosmetics are not new to the world, In fact, they have been
available in other forms back in the antique.
 Cosmetics are substances or products used to enhance or alter the
appearance of the face or fragrance and texture of the body.
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Cont.…..
 They are generally mixtures of chemical compounds; some
being derived from natural sources (such as coconut oil), and
some being synthetics or artificial.
 Cosmetics applied to the face to enhance its appearance are
often called make-up or makeup.
 Common make-up items include lipstick, mascara, eye shadow,
foundation, blush, and contour.
 Whereas other common cosmetics can include skin cleansers,
body lotions, shampoo and conditioner, hairstyling products
(gel, hair spray, etc.), perfume and cologne.
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Cont.…..
 In the U.S., the Food and Drug Administration (FDA), which
regulates cosmetics, defines cosmetics as "intended to be applied to
the human body for cleansing, beautifying, promoting attractiveness,
or altering the appearance without affecting the body's structure or
functions".
 This broad definition includes any material intended for use as a
component of a cosmetic product.
 Despites the positive news related with cosmetics and beauty
industry; one cannot run from the fact that the safety of the
cosmetics has become the major concern
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Statements of the problem
 There are several reports on preparation and formulation of
commercial cosmetics.
 However, there are no much review reports on the health problems
of these products.
 Therefore, this review work initiated to summarize recent reports
on chemistry of cosmetics and health problems of commercial
cosmetics.
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Objectives of the study
General objective
 To review on the chemistry of cosmetics and their health problems
Specific objective
 To discuss the common chemical ingredients in preparation of
commercial cosmetics products.
 To discuss the chemistry of cosmetics and their reported human
health problems and to indicate the ingredients that possess human
health problem that can be find in cosmetics.
 To discuss regulatory issues associated with utilization of cosmetics.
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Significance of the review
This review will be
 Help to develop awareness about chemistry of cosmetics and their
human health problem serve as baseline information for other
researchers who desire to work on similar topics.
 Help to prepare document on the chemistry of cosmetics, their human
health problems, and safety
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Review Literature
 Cosmetics are substances or products used to enhance or alter the
appearance of the face or fragrance and texture of the body.
 They are generally mixtures of chemical compounds; some being
derived from natural sources (such as coconut oil), and some being
synthetics or artificial.
 Cosmetics applied to the face to enhance its appearance are often
called make-up or makeup.
 Common make-up items include lipstick, mascara, eye shadow,
foundation, blush, and contour.
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Cont..
 Whereas other common cosmetics can include; skin cleansers, body
lotions, shampoo and conditioner, hairstyling products (gel, hair spray,
etc.), perfume and cologne.
 Cosmetics are intended to be applied externally.
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Cont……
Advantage of commercial cosmetics:
 Cosmetics are regarded as a means of enhancing ones complexion and
beautifying the skin.
 Skin creams and lotions can be used to deep clean the skin.
 Cosmetics are used to enhance the appearance or odor of the human
body
 After cleansing moisturizers are applied to prevent drying of skin and
to keep it smooth.
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Cont.…..
Disadvantages of commercial cosmetics:
 Cause Acne, Pimples.
 Allergic Reactions on skin
 Eye Problems.
 Dermatitis.
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Cont.…….
Ingredient of commercial cosmetics products:
 water, emulsifiers (to mix oil and water),
 preservatives (to prevent growth of bacteria and mould or prevent
degradation by light), thickeners (to change consistency), colors,
fragrances.
 Most chemicals are added to cosmetic product in the form of
preservatives, fragrances and heavy metals.
 These chemicals added in products purposely to increase, enhance or
improve the quality, longevity, odors and the appearance of the
products
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Cont.…….
 Chemical structures of some of commonly used Parabens in
cosmetics industry
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Cont……
 Chemical
structures of some compounds used as fragrances in
preparation of commercial cosmetics.
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Cont…
 Human health problems of commercial cosmetics
 Coal Tar Colors
 Diethanolamine (DEA
 Formaldehyde and its releasers
 Parabens
 Phenylenediamine (PDA.
 Phthalates.
 Glycol Ether
 Propylene Glycol
 Chlorphenesine
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Methods of preparation of cosmetics
 Cosmetics are prepared from compounds isolated from the seeds,
used nablyudavshiesya seeds seedlings of rye, and/or buckwheat,
and/or lentils, and/or soybean and/or sunflower and/or pumpkin,
and/or sesame seeds.
 The method allows extending the range of natural ingredients used
in cosmetics.
 The invention relates to cosmetic tools: tools for the care of skin,
nails and hair.
 Known method of preparing cosmetic products, including the use of
plant extracts.
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Conclusion
 The
cosmetic products may present health risks and recurrent
adverse effects are attributed to the toxic substances commonly
found in their formulations.
 Although the various structures for the regulation
and
quality
control of cosmetics around the world are quite complex and
comprehensive, they should be more rigorous in the inclusion of
new
substances
with toxic
potential in the formulation
of
cosmetics to avoid damages to human health.
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Cont.……
 To encourage improvements in the manufacture, marketing
and use of cosmetic products by the population, it is
necessary to apply a unified cosmeto-vigilance around the
world.
 The public health strategy are a genuine means of obtaining
information on the safety of cosmetic products and their
ingredients, preventing the risks associated with the use of
cosmetics become a serious public health problem.
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Recommendation
From this review the following recommendation was for warded:
 It is better if farther discussion is carried out on the chemistry of
cosmetics and their human health problems and to indicate the
ingredients that possess human health problem that can be find in
cosmetics.
 It is better if discuss regulatory issues associated with utilization of
cosmetics.
 It is better to develop the awareness about chemistry of cosmetics
and their human health problem serve as baseline information for
other researchers who desire to work on similar topics.
.
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Acknowledgements
I would like to thank
 God who gave me nice save in every directions
 My advisor Mr. Tilahun Yai for his valuable advice, effort
and follow up in my work
 Jimma University, College of Natural Science , Departments
of Chemistry.
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