u/Designer-Glass8406

Does anyone know what these little black dots are?

I’ve been using the Foreskinned Air + tugging with elastic bands for about two years. I noticed that from time to time these little black dots would appear on the inside of the silicone. They’re more like stains than actual dirt — they have a slight texture and you can feel them when running your finger over them — but there’s no smell and it doesn’t seem like normal grime.

Whenever I washed it, they would slowly fade away, but now the silicone is completely covered in them. It doesn’t affect the functionality, but the appearance bothers me and I’m worried it could damage the product over time.