Table 9 Summarizes published cosmeceutical and skin uses of these frequently used plants

Olea europaea

Reported usage in ethnomedicine in Palestine [23], Italy [24], Spain, and other Mediterranean areas [25].

To prevent hair loss and skin cleanser [26].

Leaves cause hepato-cellular and renal abnormality [27].

Lawsonia inermis

Reported in Africa [28], Southern Asia specially India [29], Palestine [30], and worldwide [31].

Coloring material, fungicidal and anti-inflammatory [32].

It may cause loss of body balance, and paralysis [33].

Ricinus communis

Reported in India [23]

Reported its anti-inflammatory [34], antimicrobial and antifungal activities [35].

No significant toxic effects [36].

Allium sativum

Reported in developing countries [37]

Reported as antiseptic and expectorant [38]

Reported to have toxic potential, with a demonstrated capability to alter biochemical indices in vital tissues [39]

Aloe vera

Reported in southern Africa [40], Nigeria [41], Mediterranean countries [42], Asia [43] and

India [44]

Reported in treatment of dry skin, improve the skin integrity, decrease appearance of acne wrinkle and decrease erythema [45]

Overdose reported to lead to colicky abdominal spasms and pain, as well as the formation of thin, watery stools [46]

Cocos nucifera

Reported in Southeast Asia [47], India [48], Africa [49], and American continent [50].

Reported as Anti-bacterial, antifungal [51], preventing hair loss, wound healing, and dermatitis [52], .

Low toxicity effect reported [53].

Trigonella arabica

Reported in India, Africa [54], and Egypt [55].

Treatment of inflammation [56]

Administration at higher dose induced toxicity including teratogenic, foetotoxic, reproductive changes and the abnormal shapes of the sperms [57]

Prunus dulcis

Reported in Iraq [58] and Lebanon [59] and well known

Worldwide

High antioxidant activity [60] and used for premature hair fall [61]

No reference

Citrus limon

Reported throughout the world [62]

Skin care and anti-oxidants [62].

No reference

Pimpinella anisum

Reported in Mediterranean Region [63], Palestine [64], the Middle East [65]

and Spain [63]

Reported to have insecticidal effect [66], antioxidant and anti-inflammatory effect [67],

No reference

Punica granatum

Reported in India [68], Algeria [69], Africa [70], America [71], Spain [72].

Evidence for in vitro assay activity as antioxidant [73] and protects against the adverse effects ultraviolet radiation [74, 75].

Considered as non-toxic [76, 77]

Sesamum indicum

Reported in India [78], USA [79], Pakistan [80], Africa [81], China [82] and Sudan [83].

Reported to have antioxidant activity [84] and wound healing [85].

Practically non-toxic [86].