We compared two waxed mint dental floss: the Oral-B Essential Floss 2 x 50m and the Expanding Dental Floss with Coconut Oil 4 Pack.

What we looked at

Type, length per pack, coating, and price per metre.

The verdict

If you want a plain waxed shred-resistant floss at the lowest price, the Oral-B Essential is the pick at £2.65 for 100m, about 2.7p a metre. If you would rather pay £7.34 more for four spools of coconut oil floss that expands with saliva, the expanding floss is the alternative, at £9.99 for about 200m, about 5p a metre.