Safe usage of cosmetics in Bangladesh: a quality perspective based on microbiological attributes
© Noor et al. 2015
Received: 21 June 2015
Accepted: 2 September 2015
Published: 9 September 2015
The present review attempted to emphasize on the microbiological quality of the commonly used cosmetics item by the majority of the Bangladeshi community. The abundance of contaminating microorganisms has been quantitatively discussed and the possible health risk has been focused upon usage of these items. Only a very few research efforts have been conducted on the cosmetic items in Bangladesh so far. The microbiological contamination aspects have been portrayed in this review using the information collected from a substantial number of cosmetic items which were earlier subjected to extensive microbiological and biochemical analyses. The prevalence of bacteria, fungi and the specific pathogenic microorganisms has been discussed based on research so far locally conducted on the finished items sold in markets, especially within the Dhaka metropolis. The laboratory scale experiments revealed the presence of enormous number of bacteria, actinomycetes and fungi within the commonly used cosmetics. Conversely, the anti-bacterial activity was noticed in some of the products which might be in favor of the user safety. The prevalence of pathogenic microorganisms in the cosmetic items certainly raises a substantial public health issue. The necessity of the routine microbiological testing of the commonly used cosmetic items as well as the legislative measures to mitigate the contamination problem is thus of great significance.
KeywordsCosmetics Microbiological quality User safety Public health
Cosmetic items have long been used by the people around the world in order to enhance personal appearance and maintain personal hygiene and safety [1–5]. Varieties of cosmetics with discrete functions are currently available (they are being used for the care of each part of body) [6–8]. Thus, the cosmetic items are the principal categories of health care products besides the pharmaceutical products which are mainly used for mitigation of diseases [6–8]. The cosmetic items are in general known as the chemical substances or sometimes the preparations from natural herbs which are frequently applied to human body exclusively with an intention of beautification as well as for cleaning and protection from various hazards [1, 2, 9, 10]. Besides the chemical reactivity or the side effects of cosmetic usage, another aspect of discussion relies on the microbiological quality of the cosmetic products [2, 11]. Though the cosmetic items are considered principally as the health care products, since they are largely under the non-sterile pharmaceutical categories, the items may undergo microbial contamination [2, 12–14]. The extent of microbial contamination largely depends on the microorganism-infected bulk ingredients during product manufacturing and processing accompanied with insufficient in-process quality examinations followed by unfussy storage condition as well as the distribution into the markets without apposite quality assurance of the finished cosmetic products [2, 10, 15, 16]. Such contamination in the cosmetics items may result in several diseases including scabies, acne, eczema, dyschromia and other skin diseases [8, 17–21].
Microorganisms associated with the cosmetic items: global and Bangladeshi perspectives
Contamination of cosmetic products by an array of pathogenic bacteria like Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus spp., Micrococcus spp., Clostridium tetani, Bacillus cereus, actinomycetes and fungi has been reported worldwide; however, as stated earlier, such knowledge is scarce in Bangladesh [10, 13, 14]. Until recently, Bangladeshi scientific community remains quite reluctant about cosmetic microbiology; very interestingly, microbiological contamination aspects were resolved almost 30 years ago. In 1946, the first notification of microbial contamination was made in talcum powder by Clostridium tetani, and then in 1967, Klebsiella pneumoniae was reported to contaminate hand creams, and finally in 1983, aqueous soaps were observed to harbor Pseudomonas stutzeri . The principal reasons behind such contamination has been chalked out afterwards, and the microbiological experiments demonstrated that the unhygienic handling of bulk ingredients during manufacturing followed by the insufficient in-process check principally account for such contamination [2, 36–39]. However, certain acceptable limits of microorganisms within the cosmetic items have been recommended by the FDA and BP/USP. For example, in case of cosmetic items to be applied within the non-eye area, the Total Aerobic Microbial Count (TAMC) should be no more than 103 cfu g−1; and for the items used within the eye area, the limit should not exceed 102 cfu g−1 [1, 8, 18]. The microbial burden over the recommended limit may result in several types of diseases as described above [7–20].
Microbial access into the production stream of cosmetic manufacturing as in pharmaceuticals is very likely to occur with a nearly similar mechanism . Common microorganisms gaining access into the products and premises may include several Gram-negative and Gram-positive bacteria and the opportunistic pathogens . Such contaminants may possess the potential of adapting to the ingredients within the products and may survive . Microbial contaminants may be sourced from the poor quality raw ingredients, manufacturing equipments, processing environment and personnel, even within the packaging materials [12, 32, 42, 43]. Indeed, the microbial contamination of the products kept in market for sales purpose is also possible even after all in-process checks during manufacturing and packaging, possibly due to the (1) microbiological entry into the active ingredients or the additives (i.e., preservatives) which remained un-noticed; (2) due to the improper handling and discrepancy in the storage conditions of the products (Fig. 1).
In Bangladesh, the microbiological contamination of the pharmaceutical medicaments has widely been reported locally so far [44–48]. However, reports on the cosmetic products quality are not that much available like the pharmaceutical ones [2, 49–51]. Tests for finished cosmetic products have been conducted principally by a group of researchers employing the recommended microbiological and biochemical tests [31, 44–54]. Varieties of soaps, shampoo, lotions, face washes, creams and petroleum jelly, whereby almost all samples were found to be hugely contaminated with bacteria and fungi (Additional file 1). The TAMC was noticed to be within a range of 103–105 cfu g−1 whereas the Total Yeast and Mould Count (TYMC) was observed up to 103 cfu g−1. Samples were found to harbor several pathogenic bacteria; i.e., Staphylococcus spp., Pseudomonas spp. and Bacillus spp. within a range of 101–103 cfu g−1. Presence of Klebsiella spp. was also noted up to 101 cfu g−1. In a recent study, among 10 categories of samples (total 30 items), almost all samples were found to possess the TAMC and TYMC up to 105 cfu g−1 and 103 cfu g−1, respectively . Growth of Staphylococcus spp., Pseudomonas spp. and Klebsiella spp. was also noted. Taken together, the microbiological survey on a total of 50 items of cosmetic products revealed the microbial load in an unsafe level which further leads to greater public health risk associated principally with skin diseases among the users. For maintaining the sustainable quality of the cosmetic products, as for pharmaceuticals, the widely implemented concept of Hazard Analysis of Critical Control Points (HACCP) can be employed to improve the microbiological safety of the finished products [31, 32, 55]. Interestingly, with an opposite trait to microbiological proliferation within the cosmetic items, the anti-bacterial activity was observed in seven samples against Staphylococcus spp., E. coli, Bacillus spp., Pseudomonas spp., Klebsiella spp. and Listeria spp. employing the methods described earlier [56–58]. Besides the microbiological contamination aspect of the cosmetics products, such anti-bacterial trait of these items may, in contrary, draw an overall public health impact of the cosmetic samples tested. Overall, the microbiological investigation on the commonly used cosmetic revealed a huge microbial contamination exceeding the recommended limits. Stern actions on the microbiological quality control along with the personal hygienic improvement during cosmetic products processing would be effective for the enhanced management of the mass public health.
Although the microbial analysis of the cosmetic products described above has been done in small scale, still the sample size of 50 was quite enough to indicate valid results on the current microbiological status of the products in context to project microbiological management of cosmetic products in Bangladesh. However, routine microbiological tests of all cosmetic items sold in market are required, and the necessary steps should be taken by Bangladeshi Government, too. Besides the regular tests of the finished products by the cosmetic manufacturing industries, additional quality tests of the market items can be initiated by the universities and research organizations in Bangladesh, thereby raising the firmness of quality of the sold products among the users.
Another vital problem is that in many cases cosmetic oriented skin irritations that are noticed within Bangladeshi people remain undiagnosed . Appropriate diagnosis of the diseases caused by cosmetic is definitely required. Furthermore, as many drug oriented diseases are also emerging within the Bangladeshi community mostly due to the microbial drug-resistance traits as well as the microbial contamination of finished products, appropriate microbiological analyses are required not only for disease diagnosis or the pharmaceutical product quality, but also for the sound formation of the finished forms of the cosmetic products . Besides, rigorous measures need to be taken by the Bangladeshi legislative bodies to ensure the practice and commencement of GMP maintenance in the cosmetic manufacturing industries. The operational sites must comply with the FDA requirements and appropriate quality assurance (QA) system must be endorsed during the market survey market complaints.
The manufacturing and packaging processes of the cosmetic items should be strictly maintained by specifications given by the Federal Food, Drug and Cosmetic Act (FD and C Act) and the Fair Packaging and Labeling Act (FPLA) . Regular inspection of cosmetic manufacturing facilities is required to assure cosmetic product safety and to determine whether cosmetics are adulterated or misbranded under the FD & C Act or FPLA. According to the International Standard Organization (ISO) 22716 and FDA regulations, building premises, constructions and facilities used for manufacturing of cosmetic products should have adequate space together with built-in outfit to prevent cross contamination between raw materials, intermediate formulations, bulk materials and finished products. Periodic control of pests, sufficient lighting and ventilation, filtering of dust particles, maintenance of pharmaceutically ambient humidity and temperature, and frequent sanitary safeguarding in the manufacturing areas are worth to implement. All equipments should be maintained in clean conditions with regular calibration, and should be of defined design, size, and material in order to prevent particle droplet and microbial adhesion . Thorough cleaning of containers and the hygiene of the workers along the production line should be accomplished according to the international and/or European laws and legislations. Together with regular microbiological tests (microbial limit tests, sterility tests, microscopy, etc.), the raw materials should be stored in closed containers and handled carefully to prevent mix-ups or selection errors, contamination with microorganisms or other chemicals, and degradation from exposure to excessive heat, cold, sunlight, moisture, etc. . The entire system for the manufacturing water should be routinely monitored for the presence of pyrogens, and should be free from the possible development of biofilm. Another point is to ponder over the use of color additives in cosmetic items. When used in cosmetics, they must comply with the identity, specifications, uses, restrictions, and labeling requirements stated in the FD and C Act .
People in the cosmetic stores responsible for maintenance and sales of the finished products should be aware of keeping the storage conditions at the required level (for instance, at appropriate temperatures and humidity). The regulatory bodies both within the Governmental and the private sectors should take appropriate measures in coordination with the microbiology researchers, pharmacy professionals and the physicians around the country. Overall, as a number of diseases are emerging in Bangladesh, the appropriate handling of cosmetic products would definitely aid in reducing the ongoing common diseases [51, 63, 64].
Pharmaceutical industries in Bangladesh are abundant and a number of pharmaceutical medicaments are available while some are imported from foreign pharmaceutical manufacturers. In contrast, cosmetic manufacturing industries in Bangladesh are very few, and as a result, plenty of cosmetic items are imported in Bangladesh. The laboratory based microbiological analyses of the pharmaceutical medicaments are in plenty in Bangladesh; however, such in vitro experiments on the cosmetic items are in scarce. Present review portrayed the informative description on the common cosmetic items in Bangladesh along with their microbiological status in accordance with the recommended limit by the international regulatory bodies. The laboratory investigations in small scale as described in this article unraveled that a major portion of cosmetic products might be contaminated with pathogenic microorganisms. Such public health concern should be addressed stringently, not only in Bangladesh perspective, but also within the other developing countries consisting of people mostly unconscious about the negative impact of the usage of cosmetics.
RN designed and drafted the manuscript. NZ aided in drafting the manuscript. KKD and LNN of them assisted in collecting the data required to compose the write up. All authors read and approved the final manuscript.
The work was logistically supported by the Department of Microbiology, Stamford University Bangladesh as a part of the regular academic curriculum. However, there was no specific funding for this research and hence no grant number exists.
Compliance with ethical guidelines
Competing interests The authors declare that they have no competing interests.
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