Strongly reversible classes in $\mathrm{S}\mathrm{L}(n,\mathbb{C})$

An element of a group is called $\mathit{\text{strongly}}\mathit{\text{reversible}}$ or $\mathit{\text{strongly}}\mathit{\text{real}}$ if it can be expressed as a product of two involutions. We provide necessary and sufficient conditions for an element of $\mathrm{S}\mathrm{L}(n,\mathbb{C})$ to be a product of two involutions. In particular, we classify the strongly reversible conjugacy classes in $\mathrm{S}\mathrm{L}(n,\mathbb{C})$.