Safety Assessment of Talc as Used in Cosmetics

Fiume, Monice M.; Boyer, Ivan; Bergfeld, Wilma F.; Belsito, D.; Hill, Ronald A.; Klaassen, Curtis D.; Liebler, Daniel C.; Marks, James G.; Shank, Ronald C.; Slaga, Thomas J.; Snyder, Paul W.; Andersen, F. Alan

doi:10.1177/1091581815586797

Cited by 44 publications

(37 citation statements)

References 135 publications

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“…Topical application of baby talcum powder is thought to be useful in keeping the skin dry [11, 23, 24]. However, it has only been found to be beneficial in cases of uncomplicated diaper dermatitis and not in more severe cases of cutaneous inflammation [25]. In addition, the application of talcum powder to areas of the skin where the epidermal barrier is absent or significantly disrupted or to moist areas can cause skin irritation [13, 15, 26].…”

Section: Discussionmentioning

confidence: 99%

Diaper dermatitis: a survey of risk factors in Thai children aged under 24 months

2019

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Background To identify the prevalence and risk factors associated with diaper dermatitis in Thai children aged 1–24 months. Methods This was a cross-sectional study of 1153 participants using structural questionnaires, which was conducted at Khon Kaen University Faculty of Medicine Pediatric department in Thailand. Univariate and multivariate logistic regression analyses were used to test the association between diaper dermatitis and its possible risk factors. Results The prevalence of diaper dermatitis among the study population was 36.1%, a rate which significantly decreased with age. The highest prevalence was found in subjects who were one to six months old. Risk factors that had a statistically significant association with diaper dermatitis in both univariate and multivariate analysis were i) diaper changing fewer than three times/night, ii) previous episodes of diaper rash, iii) using cloth diapers, and iv) topical application of baby talcum powder to the diaper area. Conclusions Frequent diaper changings during the daytime do not compensate for fewer changings during the night. Moreover, the use of baby talcum powder on the diaper area significantly increased the risk of diaper dermatitis among the study population. These findings should be applied in future preventive strategies for diaper dermatitis in this age group. Electronic supplementary material The online version of this article (10.1186/s12895-019-0089-1) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Diaper dermatitis: a survey of risk factors in Thai children aged under 24 months

2019

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“…Talc: According to Fiume et al . , talc is a mineral, has a chemical formula of hydrous magnesium silicate and can be used in the cosmetic industry. Sometimes, a small portion of aluminium silicate is mixed with talc in different applications in the cosmetic industry.…”

Section: Introductionmentioning

confidence: 99%

Designing high‐performance colour cosmetics through optimization of powder flow characteristics

Liu

Drakontis

Amin

2020

Intern J of Cosmetic Sci

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Objective Explore the impact of powder flow properties such as flow energy and compressibility on the performance characteristics of foundation powders such as cake strength and pay‐off. Methods FT4 Powder Rheometer from Freeman Technology was utilized to explore various powder compositions. The three major tests performed were flowability test, compressibility test and shear cell test. Results The results highlight that the sample which has higher compressibility has the better cake strength, and the sample which requires lower total energy has better pay‐off. Particles or samples with lower total flow energy, should have easier flow, therefore, should have better pay‐off. Samples and components with higher compressibility, should hold the structure better, therefore, should have better cake strength. Talc has the highest compressibility and lowest flow energy. Foundation sample 5 has the highest concentration of talc and also has the best performance. Conclusion The lower the total flow energy, the easier it is for the powder to flow, and have better pay‐off. Powder compressibility correlates with cake strength which means that a sample with better compressibility consequently has the better cake strength. Samples 5 and 10 require less total flow energy, have lower shear stress, and higher compressibility, therefore, have better final performance. Both samples 5 and 10 have higher talc concentrations compared to other formulations.

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“…The remarkable chemical purity of the talc particles combined with the small percentage of accessory minerals in the deposit (especially for BTT7) suggest applications in cosmetics. The cosmetics industry requires talc deposits of very high quality, as up to 90% should be composed of talc and should be free of fibrous or asbestos-form minerals (Fiume et al , 2015). The talc particles should also have very low Pb (<20 ppm) and As contents (<3 ppm), and they should be free of quartz.…”

Section: Resultsmentioning

confidence: 99%

Mineralogical and crystal-chemical characterization of the talc ore deposit of Minzanzala, Gabon

et al. 2019

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This research aims to characterize the mineralogical and crystal-chemical purity of two samples of natural talc (BTT6, BTT7) from the occurrence ‘Ecole1’ in the deposit of Minzanzala, southwest Gabon. X-ray diffraction and modal-composition calculations demonstrated the presence of quartz and Al–Fe-bearing phases (kaolinite and/or chlorite and/or Al–Fe oxyhydroxides) as accessory minerals in both ores. In contrast, the chemical and spectroscopic characterization of the talc component revealed remarkable chemical purity expressed by very low Fe contents. According to these results, the talc of Minzanzala might be used as a filler in a wide range of industrial applications, such as in cosmetics, paints, polymers or ceramics.

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Safety Assessment of Talc as Used in Cosmetics

Cited by 44 publications

References 135 publications

Diaper dermatitis: a survey of risk factors in Thai children aged under 24 months

Diaper dermatitis: a survey of risk factors in Thai children aged under 24 months

Designing high‐performance colour cosmetics through optimization of powder flow characteristics

Mineralogical and crystal-chemical characterization of the talc ore deposit of Minzanzala, Gabon

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