1. Potency of topical corticosteroids (as defined by the British National Formulary)                                                                                                                                                             .

Potency	Topical corticosteroids
Mild	Hydrocortisone 0.1% to 2.5% Fluocinolone acetonide 0.00625%
Moderate	Alclometasone dipropionate 0.05% Betamethasone valerate 0.025% Clobetasone butyrate 0.05% Fludroxycortide (flurandrenolone) 0.0125% Fluocortolone 0.25%
Potent	Betamethasone dipropionate 0.05% to 0.064% Betamethasone valerate 0.1% to 0.12% Diflucortolone valerate 0.1% Fluocinolone acetonide 0.025% Fluocinonide 0.05% Fluticasone propionate 0.005% to 0.05% Hydrocortisone butyrate 0.1% Mometasone furoate 0.1% Triamcinolone acetonide 0.1%
Very potent	Clobetasol propionate 0.05% Diflucortolone valerate 0.3%