Mass profile of the Perseus clusters as extracted from its ICL observed by Euclid (Kluge et al. 2025). The shaded regions represent the 1 and 2σ intervals. The dashed black horizontal (vertical) lines indicate the recovered M_200c (R_200c). The gray lines denote the same, but for M_500c. The red shaded regions indicate where Σ_⋆ has been extrapolated. For reference, the locus where ρ = ρ_200c is shown as dotted green lines.