PurposeThe main purpose of this work is to evaluate the different psychological impacts of two initial verbal recovery strategies (gratitude vs empathetic apology) on the consumers' loyalty after a service failure. The proposed theoretical model also appraises the mediating role of two emotional responses (consumer forgiveness, consumer anger) and consumer self-esteem and the moderating role of self-oriented perfectionism.Design/methodology/approachTwo studies (i.e. an experimental design and a field study) are considered for this investigation to assess the effectiveness of gratitude expression versus empathetic apology on post-recovery loyalty and test the effects of mediators and the moderator applied between the verbal recovery strategies and post-recovery loyalty.FindingsThe results of Study 1 revealed the supremacy of gratitude to empathetic apology in maintaining consumers' loyalty after service failure recovery. The better impact of gratitude expressed in increasing post-recovery loyalty is mediated through the elevation of consumers' forgiveness, the reduction of consumers' anger and consumers' self-esteem. The findings of Study 2 indicated that gratitude increases more post-recovery loyalty through individuals with a high level of self-oriented perfectionism.Research limitations/implicationsFuture research could examine other service failure situations, different types of service recovery, mediators or moderators, which contribute to the service marketing literature.Practical implicationsAfter a service failure, using gratitude expressions to consumers often makes them feel better and more valuable.Originality/valueThis work increases service providers' knowledge in using proper expressions after a service failure to help elevate consumers' positive reactions resulting in maintaining their loyalty.