Review Article

The Role of Herbal Medicine in the Treatment of Acne Vulgaris: A Systematic Review of Clinical Trials

Table 1

Search string used for this systematic review.

PubMed
(1) Plant (1082807)
(2) Plant extract (188557)
(3) Tea (30664)
(4) Herbal products (7154)
(5) Natural products (637692)
(6) 1 OR 2 OR 3 OR 4 OR 5 (1547065)
(7) Phytotherapy (39254)
(8) Treatment (10562707)
(9) Remedy (10139)
(10) Natural therapy (155217)
(11) Herbal medicine (41337)
(12) 7 OR 8 OR 9 OR 10 OR 11 (10578745)
(13) Acne vulgaris (12303)
(14) Propionibacterium acnes (4976)
(15) 13 OR 14 (16271)
(16) 6 AND 12 AND 15 (732)
(17) 16 AND  Humans AND English (362)

Web of Science
(1) Plant (4958255)
(2) Plant extract (463391)
(3) Tea (125509)
(4) Herbal products (43344)
(5) Natural products (350473)
(6) 1 OR 2 OR 3 OR 4 OR 5 (5283779)
(7) Phytotherapy (39811)
(8) Treatment (9089471)
(9) Remedy (64916)
(10) Natural therapy (206773)
(11) Herbal medicine (69546)
(12) 7 OR 8 OR 9 OR 10 OR 11 (9313410)
(13) Acne vulgaris (17168)
(14) Propionibacterium acnes (8498)
(15) 13 OR 14 (23700)
(16) 6 AND 12 AND 15 (569)
(17) 16 AND English (547)

Scopus
(1) Plant (2340371)
(2) Plant extract (271770)
(3) Tea (64489)
(4) Herbal products (16588)
(5) Natural products (191436)
(6) 1 OR 2 OR 3 OR 4 OR 5 (2547351)
(7) Phytotherapy (40878)
(8) Treatment (7537055)
(9) Remedy (60029)
(10) Natural therapy (73955)
(11) Herbal medicine (53492)
(12) 7 OR 8 OR 9 OR 10 OR 11 (7665338)
(13) Acne vulgaris (14914)
(14) Propionibacterium acnes (8158)
(15) 13 OR 14 (21527)
(16) 6 AND 12 AND 15 (362)
(17) 16 AND English (338)