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Review
. 2022 Oct 27;14(11):2308.
doi: 10.3390/pharmaceutics14112308.

Advances in Biomedical Functions of Natural Whitening Substances in the Treatment of Skin Pigmentation Diseases

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Review

Advances in Biomedical Functions of Natural Whitening Substances in the Treatment of Skin Pigmentation Diseases

Fan Liu et al. Pharmaceutics. .

Abstract

Pigmentation diseases can lead to significant color differences between the affected part and the normal part, resulting in severe psychological and emotional distress among patients. The treatment of pigmentation diseases with good patient compliance is mainly in the form of topical drugs. However, conventional hydroquinone therapy contributes to several pathological conditions, such as erythema, dryness, and skin desquamation, and requires a longer treatment time to show significant results. To address these shortcomings, natural whitening substances represented by kojic acid and arbutin have gradually become the candidate ingredients of traditional local preparations due to their excellent biological safety. This review focuses on several natural whitening substances with potential therapeutic effects in pigmentation disease and their mechanisms, and a thorough discussion has been conducted into the solution methods for the challenges involved in the practical application of natural whitening substances.

Keywords: melanin; melanogenesis; natural whitening substances; pigmentation diseases; signaling pathway.

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Conflict of interest statement

We declare no conflict of interest.

Figures

Figure 1
Figure 1
Melanin paracrine cytokines between skin cells interact with melanocytes. Increased melanin synthesis due to increased proliferation of melanocytes and increased tyrosinase (TYR) activity caused by paracrine secretion (Created with BioRender.com, accessed on 20 October 2022).
Figure 2
Figure 2
Schematic drawing of melanin synthesis, regulation, and transfer in melanocytes of skin epidermis and skin dullness. (A) Melanin produced by melanocytes is internalized by keratinocytes and then migrates and distributes to the surrounding membrane area, providing pigmentation. (B) Many cytokines activate signaling pathways by interacting with receptors on the melanin membrane and regulate the melanin production process through MITF. (C) Melanin production and transfer process (Created with BioRender.com, accessed on 20 October 2022).
Figure 3
Figure 3
Natural whitening substances that act through different pathways.

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