It's K a and si con say and then on YouTube they have videos on how to use it and so what it is it's like a little wooden handle with a five metal alloy on the Valotin end and so it's cool to the touch but as you use it it warms up and so you could you you could take the serum that you're using and actually massage that in like put a couple drops.
https://nutradiary.com/valotin/