Clionadh Aqua Fortis is a neutral blue with a metallic finish that is permanent and retails for $5.25. In comparison, Clionadh Ciel (2022) is a cool duochrome with a metallic finish that is permanent and retails for $10.00.
Clionadh Ciel (2022) is 80% similar — it is more shimmery, more muted, warmer.