[7] Acid was produced Yves Darondeau, Emmanuel Priou and Clément Renouvin for Bonne Pioche Cinéma and by Ardavan Safaee for Pathé Films.

[27] Philippe Guedj of Le Point praised the director who "happily napalms the clichés of the Emmerich genre and maintains until the very end the mark of a film oozing anger".

[6] Première included Acid on its "Top 10" list of all films screened at Cannes in May 2023,[28] and later, following its theatrical release, praised the feature: "A grand introspective spectacle that is constantly embodied in movement".

[29] L'Écran fantastique devoted its September cover to the film: "Keeping us constantly on our toes, Acid is a real success which, for once, honours our national cinema".

[30] Also, the editors of Mad Movies hailed a "gruelling race against time that skilfully combines its socio-climatic themes with its approach to horror", as well as a "mixture of social fantasy that is a clear improvement on The Swarm".

"[8] Martyn Conterio of The London Economic lamented the film's unsatisfying conclusion and a lack of budget for grand special effects, but praised the execution of its dread and suspense, as well as the "spiky" personality of Canet's character, which contribute to "excellent interpersonal drama and scenes of high tension".