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Background: The use of cosmetic products is considered a necessity for beautification in our daily lives. Cosmetic products composed of natural oils or fats as a main ingredient for various beneficial properties. Fats and oils are composed of various type of fatty acids with different compositions. Hence, fatty acids profile can be an effective chemical fingerprint for authentication analysis of cosmetic products. Objective: This systematic review aims to enlighten the current detection tools developing for fatty acids profile authentication analyses of cosmetic ingredients based on the effectiveness, halal status, safety, advantages and disadvantages of the methods. Methodology: The data were extracted from the scientific literatures published between October 2015 and 2020 in the Web of Science, Scopus and Google Scholar databases, and analyzed with Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA). Findings: Based on the systemic literature reviews, essential oil, argan oil, mineral oil, vegetable oil, and jojoba oil were among the mostly studied ingredients in cosmetics. Furthermore, a combination of more than one analytical instrument was utilized to profile fatty acids while the determination of the origin of the fatty acids is under scrutiny. The portable mass spectrometer combined with a direct inlet membrane (DIM) probe seems to be the best tool in terms of time consumption, cost, requires no sample preparation with high efficiency. The current review showed that the best cosmetic base is when the oil is composed of high concentration of fatty acids such as linoleic, oleic, stearic acid, and palmitic acids with concentration range from 19.7 ‐ 46.30%, which offers various beneficial properties to cosmetic products. [ABSTRACT FROM AUTHOR]

Background: Skin‐whitening products are in the high trend of demand for skin beautifying and lightening. Sources of ingredients for cosmetics could be natural, semi‐synthetic, and synthetic that may affect the halal status of a product. The lack of scientific evidence on the safety and risks of such ingredients is a major concern to many consumers. Objective: This review paper aimed to shed light on the skin‐whitening ingredients and their issues related to safety, health risk, and halal status. Methodology: Based on the reviews scientific publications published from January 2015 to July 2020 using Web of Science and Scopus engines. Findings: Based on the review, most of the common ingredients in the skin‐whitening products are originated from plants, animals, microbes, and heavy metals. Health risk of the ingredients was evaluated based on the usage, chronic or acute adverse effect, frequency of incidence, and the hazardous chemical contents of a halal cosmetics. The halal status of the ingredients was investigated based on the sources of origin, safety evaluation, and associated health risk of the ingredients. Originality: This review shows that ingredients play a vital role in the halal status decision‐making of a cosmetic product. Therefore, the categories of Halal‐Safe, Haram‐Prohibited, and Critical‐Need further evaluation were suggested to integrate the sources of ingredients with safety. [ABSTRACT FROM AUTHOR]