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. 2022 Jul 16;15(7):877. doi: 10.3390/ph15070877

Figure 1.

Figure 1

Schematic illustrations of skin: (a) histological cross-section of the skin (Ed—epidermis; Sc—stratum corneum; De—dermis; Sg—stratum granulosum; Ss—stratum spinosum; Sb—stratum basale; SG—sebaceous gland) (reproduced with permission from Arda et al., Clinics in Dermatology, adapted with permission from Ref.[49]. Copyright 2014 Elsevier); (b) epidermis structure (reproduced with permission from Baroni et al., Clinics in Dermatology; adapted with permission from Ref.[34]. Copyright 2012 Elsevier); (c) protein complexes of tight junctions (reproduced with permission from Basler et al., Journal of Controlled Release; adapted with permission from Ref.[46]. Copyright 2016 Elsevier); and (d) hair follicle structure of anagen phase and catagen phase (Reproduced with permission from Gorzelanny et al., Pharmaceutics; adapted with permission from Ref.[36]. Copyright 2020 MDPI).