Dissolvable stitches slow to dissolve?

Hi all I am just over 5 weeks post c section now. My stitches are very much still present and the tie at the end definitely isn’t about to dissolve or fall off any time soon. Generally the advice is that the dissolvable stitches should be gone by 6 weeks. Did this actually happen for anyone? Or when did your stitches finally dissolve? Keen to try a scar balm and silicone sheets but from what I’ve read, stitches need to be dissolved. Has anyone tried the scar balm from Naydaya or silicone sheets in general? When did you start using it? Thanks! :)