https://blendermarket.com/products/dermis-shader

Dermis is a skin-focused multi-level SSS shader for Blender, inspired by Anders Langland’s multi-level SSS shader for Arnold 4. It affords the user more nuanced and intuitive control over skin tones and a more overall natural look to scattering colour and depth, as well as being more physically realistic (real skin can also be broken down into 3 "layers" that contribute differently to SSS).    The shader is built with Cycles in mind, but works for Eevee too - although it might be overkill! (Eevee can only use one SSS lobe at once, so all Dermis really gives you for Eevee is better skin tone control). It's also built with scans in mind, both whole models and textures from sites like texturing.xyz. Please keep in mind that it's just a material, and nothing procedural, it's built to work with scanned skin textures.