Fig. 4From: Fabrication and characterization of tretinoin-loaded nanofiber for topical skin deliveryStorage stability of tretinoin in (formulations A (Tretinoin 0.5% w/v) and B (Tretinoin 1% w/v). Significance difference between nanofibers stability is observed while storage at room (RT) and fridge temperature (FT). * P < 0.05, ** P < 0.01, *** P < 0.001 for formulation A and # P < 0.05, ## P < 0.01, ### P < 0.001 for formulation BBack to article page