Hair Care Cosmetics

Yang, Ji Hyeon

doi:10.1016/b978-0-12-802005-0.00036-7

Cited by 12 publications

(8 citation statements)

References 6 publications

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“…No exceedance was recorded as mean concentrations were below the maximum permissible exposure level 1.4 mg/m 3 (Table 3). Notably, emission of H2S in beauty salons is from secondary sources, usually from the reaction of thioglycolates with disulfide bond present in human hair (Manayi & Saeidnia, 2014;Yang, 2017). Thioglycolates are depilatories used in salons for curly hairstyling and removal of unwanted hair, which then react in the process with disulfide bond present in keratin fiber to produce H2S.…”

Section: Resultsmentioning

confidence: 99%

Indoor Air Quality of Beauty Salons in Commercial and Residential Areas of Camp, Abeokuta, Ogun State, Nigeria

Tijani¹,

James²,

Oguntoke³

et al. 2023

jasem

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Growing increase of beauty salons and exposure to associated chemical substances present serious concern of chemical hazards and health problems. This study assessed indoor air quality (IAQ) of selected beauty salons in commercial and residential areas of Camp settlement in Abeokuta, Ogun State, Nigeria using Aeroqual GasSensing Monitor and WindMate® Weather Station. Human thermal sensation (HTS) was computed using Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) Indices. Data collected were subjected to descriptive and inferential statistics. Findings showed TVOC exceeded permissible exposure limit (0.2 mg/m3) in all salons and critical safe level (2500 ppm) for CO2 was exceeded in one-third. Exceedance was observed in less than one-third of salons for P.M2.5 and P.M10, due to varying activities taking place per time, and location differences. Where detected, H2S was below permissible limit (1.4 mg/m3). HTS was above the acceptable thermal comfort levels (PMV: ±0.5; PPD: <10%) in all salons. Generally, the IAQ indicates prevalence of inadequate ventilation, and portends increased exposure risk to hazardous chemical substances associated with salon activities. Therefore, formulation of policy, stipulating minimum operating standards and enforcement, alongside enlightenment campaign are necessary to promote human safety and prevent escalation of chemical related hazards in salons.

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Section: Resultsmentioning

confidence: 99%

Indoor Air Quality of Beauty Salons in Commercial and Residential Areas of Camp, Abeokuta, Ogun State, Nigeria

Tijani¹,

James²,

Oguntoke³

et al. 2023

jasem

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“…They turned cloudy immediately after polyDADMAC was added ( Figure 1 —column 20). The solution turbidity arises due to the formation of fine particles of sparingly soluble surfactant–polymer associates [ 15 , 22 , 23 ]. At low polyDADMAC doses, surfactant anions remain in excess and stabilize the formed polymer-surfactant associates.…”

Section: Resultsmentioning

confidence: 99%

“…The improved method of colloid titration with light reflectance measurements was applied to the determination of SLES in commercial detergent and personal care products. Typically, the SLES content in shampoo ranges from 5% to 15% m/m [ 2 , 23 ]. Considering the range of determination of the method in question, the sample masses were established to be 1 g, 3 g, 6 g and 10 g ( Table 3 ).…”

Section: Resultsmentioning

confidence: 99%

Determination of SLES in Personal Care Products by Colloid Titration with Light Reflection Measurements

et al. 2021

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The method of colloid titration with poly(diallyldimethylammonium) chloride has been improved to detect the endpoint with an off-vessel light reflectance sensor. The digital color sensor used measures light reflectance by means of light guides, with no immersion into the reaction solution. In such a method, the optical signal is free of disturbances caused by sticky flocs in the solution. The improved automatic titration set was applied for the determination of sodium laureth sulfate (SLES) in industrial batches and commercial personal care products. The sample color and opacity do not disturb the SLES quantification. When the SLES content lies in the range from 5% to 9%, the optimal sample weight is from 6 g to 3 g.

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“…After 15 min (Figure 2b), these values dropped from 0.2 µL.L -1 to 1,423.0 µL.L -1 illustrating an increase in toxicity with exposure time in agreement with previous reported EC50-5min:EC50-15min ratio of 1:0.56 for the anionic surfactant sodium lauryl sulphate (Dutka et al, 1983). This compares to a EC50-5min:EC50-15min ratio of 1:0.55 for the standard compound linear alkylbenzene sulfonate (LAS) and suggests a slower mode of action for surfactant which are core ingredients of personal care products and detergents formulations with contents typically varying from 10 to 20% in shampoos and up to 40 % in detergents (Yang, 2017). The Microtox® results within each category were extremely variable.…”

Section: 2microtox ® Toxicitymentioning

confidence: 94%

What is the impact of personal care products selection on greywater characteristics and reuse?

Kadewa

Knops

Pidou

et al. 2020

Science of The Total Environment

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The effects of 55 personal care and household products on greywater were studied. The toxicity of the products was also tested using Microtox® and MicroResp TM .  Product selection impacts both pollution load and character of greywater. No link could be found between the products properties and branding or price. Regardless of type and selection, the toxicities of the products appeared limited.

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Hair Care Cosmetics

Cited by 12 publications

References 6 publications

Indoor Air Quality of Beauty Salons in Commercial and Residential Areas of Camp, Abeokuta, Ogun State, Nigeria

Indoor Air Quality of Beauty Salons in Commercial and Residential Areas of Camp, Abeokuta, Ogun State, Nigeria

Determination of SLES in Personal Care Products by Colloid Titration with Light Reflection Measurements

What is the impact of personal care products selection on greywater characteristics and reuse?

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