Study	Reason for exclusion
Aertgeerts 1985	Only 1 of 161 participants had SeD
Albrecht 1986	Only 9 of 383 participants had SeD
Alebiosu 2003	Only 2 of the participants had dandruff; there was no mention about the proportion of SeD participants
Alexander 1967	The intervention was not anti‐inflammatory (tar)
Amos 1994	The interventions were not anti‐inflammatory (tar and ketoconazole)
Anonymous 1994a	This study was not a RCT, and the interventions were not anti‐inflammatory
Anonymous 1994b	This was a review
Arenas 1999	The intervention was not anti‐inflammatory (ichthyol/octopirox/salicylic acid)
Attarzadeh 2013	Allocation of treatment (emu oil or either clotrimazole or hyrocortisone) was not randomised as treatment 1 was always used on the right side, and treatment 2 was used on the left side of the face
Banerjee 1975	The interventions were a combinations of drugs (a combination of nitrofurazone and hydrocortisone acetate compared with a combination of framycetin sulfate and dexamethasone acetate and a combination of neomycin, bacitracin, polymyxin B sulfate, and hydrocortisone)
Barbanoj 2005	The intervention was not anti‐inflammatory (eberconazole), and participants were healthy volunteers
Basak 1999	This was a poster. The efficacy and safety results were not given in numerical form, and it was not possible to ensure that efficacy was assessed in ways relevant for the review
Bertamino 1975	Less than 75% of participants had seborrhoeic dermatitis; randomisation was not explained clearly
Binder 1972	Less than 75% of participants had seborrhoeic dermatitis; the affected area was not reported
Boyle 1986	The intervention was a combination of lithium succinate and zinc
Camarasa 1975	Only 1 participant out of 37 had SeD
Carboni 1982	The comparison was between 2 formulas of clobetasol
Christodoulou 1983	The intervention was in peroral form
Cuelenaere 1992	The interventions was a combination of lithium succinate and zinc sulphate
Curley 1990	The diagnosis of the participants was mainly psoriasis or eczema; only a few had SeD
Davies 1999	The intervention was tar or ciclopirox olamine, which are not relevant for this review
de la Brassine 1984	Randomisation, site, and age were unclear
Dobrev 2003	1 intervention is a combination of drugs (salicylic acid, plant tar, and green microalgae), and others were not anti‐inflammatory (selenium sulphide, zinc pyrithione, and a combination of ketoconazole, metronidazole, and sulphur)
Elewski 2009b	This was a review
Elie 1983	Only 17 out of 40 participants had SeD
Eun 2009	This was a poster, which did not contain enough data
Franz 2000	Participants had psoriasis not SeD
Fredriksson 1975a	The study was not randomised
Fredriksson 1985	The intervention was not anti‐inflammatory (tar)
Freeman 2002	Less than 75% of participants had seborrhoic dermatitis in the desonide group
Fritz 1995	The intervention was a combination of lithium and zinc sulphate
Futterer 1981	The comparison was irrelevant (piroctone olamine and zinc pyrithione)
Gayko 2006	The intervention was a combination of ichthyol and ketoconazole
Gentry 1973	Age and affected area are unknown
Goffin 1996	The interventions were not anti‐inflammatory (econazole nitrate, piroctone olamine, senium sulphide, and zinc pyrithione)
Gould 1988	The reference was a summary of a paper. The used efficacy measures were not reported in detail. The results were not reported in numerical form
Grossman 1997	The interventions were not anti‐inflammatory (zinc pyrithione and ketoconazole)
High 2006	The study was not randomised or controlled
Hochman 1988	The interventions were combinations of non‐anti‐inflammatory agents (sulphur + salicylic acid)
Humke 2002	The nature of the intervention was unclear: a new shampoo free of ketoconazole versus a ketoconazole‐containing shampoo
Jacksonville 1969	The age of the participants was unknown; randomisation was unclear; and the time‐in‐between was not reported
Jafferany 2008	This was a review
Jaramillo 1992	The intervention was not anti‐inflammatory (zinc pyrithione)
Jensen 2009	This was a poster. The age of the participants was not reported. The outcomes used were not in the interest of this review
Jensen 2010	This was a poster. There was no information on the age of the participants or the affected/investigated site. The used outcomes were not reported, and the results of interest in this review were not reported in numerical form
Kaminester 2002	The intervention was not anti‐inflammatory (sulphacetamide)
Karsono 2010	The intervention was not anti‐inflammatory (zinc pyrithione)
Kim 2012	This was a poster. The results of interest for this review were not reported in detail or in numerical form. No useful data could be added to the analyses
Kim 2013	This study included an induction phase with an active treatment only (not controlled) and thereafter a controlled maintenance phase
Kircik 2009	Participants were healthy volunteers, and the intervention was not anti‐inflammatory
Levy 1974	There was only 1 participant with SeD
Li 2000	The interventions were irrelevant for the review (Triatop®, which is a ketoconazole‐containing compound, and tar)
Lin 2010	This was a review
Luo 1993	The intervention was antifungal (bifonazole)
López Padilla 1996	The interventions were not anti‐inflammatory (ketoconazole and climbazole)
Marks 1974	The outcomes used in the study were not relevant for the review. There were no useful data to be added to the analyses
Mensing 2008	Only 10 out of 27 participants had SeD, and there was no control treatment
Nolting 1983	Less than 75% of participants had SeD, and results were not reported separately for SeD participants
Nolting 1985	Only 1 out of 80 participants had the diagnosis of SeD
Pierard‐Franchimont 1995	The interventions were not anti‐inflammatory (econazole, ketoconazole, piroctone olamine, and selenium sulphide)
Pierard‐Franchimont 1999	The intervention was not anti‐inflammatory (tar). This was a poster
Pierard‐Franchimont 2000	The intervention was not anti‐inflammatory (tar)
Pierard‐Franchimont 2002a	The interventions were a combination of non‐anti‐inflammatory agents (ketoconazole, piroctone olamine, and zinc pyrithione formulations)
Pierard‐Franchimont 2002b	The intervention was a combination of antifungal and anti‐inflammatory drugs (ketoconazole and desonide combination)
Pierard‐Franchimont 2002c	The interventions were not anti‐inflammatory (ketoconazole and zinc pyrithione)
Reiffenstuhl 1973	Only 3 out of 54 participants had SeD, and there was no control intervention
Reinhard 1974	Only 5 out of 122 participants had SeD
Sohn 1978	This was a non‐randomised study
Tomoka 1973	Only 2 out of 84 participants had SeD
Turnbull 1982	Less than 75% of participants had seborrhoeic dermatitis
Veien 1980	The intervention was a combination of 2 non‐anti‐inflammatory agents (coal tar and zinc pyrithione)
Wacker 1989	Randomisation and proportion of SeD participants was unclear
Weiss 2011	The intervention was not anti‐inflammatory (ketoconazole)
Wollina 2006	This was a review
Wollina 2007	This was a review
Yawalkar 1983	Less than 75% of participants had SeD