I stupidly left some dark clothes soaking in some Lidl "colour" laundry liquid, and it's totally ruined them by lightening the fabric in patches.
I always new that if a laundry product isn't a "colour" version it probably has optical brighteners which bleach, but I hadn't expected them to be in a product meant for washing coloured clothing. I know that soaking caused the issue but even in the machine, that stuff must be gradually lightening dark clothes with every washing cycle. And I often think my dark jeans etc. are getting lighter, that was probably the reason.
As I have a lot of black clothes, can anyone recommend a laundry liquid that is truly bleach-free? Preferably without a very strong scent but I know that might not be an option.