This effect is most likely made as a composite, not a simple in-camera double exposure. A classic double exposure mainly adds tones together, so details like the eyes would usually still show through the gaps between the fingers. In your example, the blending looks more controlled than that.

A typical approach is:

1. Photograph the hands.
2. Photograph the face.
3. Optionally use a separate texture image, such as a wall or rough surface.
4. Combine them in an editor like Photoshop using layers, masks, and blend modes such as Multiply or Overlay.

Masks let you decide exactly where the face shows through the hands, and blending modes help merge the tones naturally. The faded, painterly result may also involve extra texture or stylized processing afterward.

So, if you want a similar look, plan on shooting separate images and compositing them in post rather than relying on multiple exposure alone.