Suggestions on yarns with varying fibres for severe eczema?

I'm based in the UK and cannot easily get many of the recommended yarns. I usually use acrylic, but have been crocheting a merino scarf for my bf and have found it to be fine even on bad skin days. I do have an allergy to lanolin though so any advice would be very much appreciated.

I'm making a sweater adapted from this - https://youtu.be/V6u-SMh4y0w?si=TbGWrB0E8H870-fg.

I have looked at Caron simply soft but am worried about pulling after washing. thanks.