Dylon Pre Dye, use Before Fabric Dye to Lighten Clothes, 200g

I needed to strip the colour from a linen blouse so I could redye it. I followed the instructions to the letter. The product did not strip the colour - in fact, it made NO perceptible difference to the colour whatsoever. It smells awful too. Money wasted.

Was a bit concerned based on other reviews but this worked incredibly well. I had a black cardigan I’m hoping to lighten to dye another brighter colour and after one use it’s taken it to a faded purple (see pic) so going to use another box. The cardigan is 100% cotton which I think I recommended. Highly recommend but do check it works for your fabric content first as I think that’s why it may not have worked for others

Faded item a small amount, was expecting more colour fade, slightly disappointed

Easy to use, fairly clear instructions, I think the instructions on the dye pods are clearer so did some of the steps from that, e.g. pre wash without conditioner and then leave wet when adding the dye.I've knocked a star off because I can't fully comment on the predye, I was experimenting with a polycotton blend fabric and so wouldn't know how it fairs on 100% cotton as it is intended. I would buy this again if working with a higher cotton blend or 100% cotton, but the 55% cotton didn't seem to take it.

Complete waste of money and time. No discernible change in shade despite following the instructions exactly. I should have read the reviews.

I used this to pre-wash a jumper I had spilled bleach on. It seemed to work well as the dye took really well and my navy jumper is now very black. One word of warning, it is not a quick process, requiring the longest wash on your washing machine, followed by washing the item, and cleaning the machine. I think it probably took in excess of 12 hours in the washing machine to complete the dye process.

Just did not work I tried one packet the first time A few bleach like stains were left on the back pockets. The second time I tried two packets absolutely no change to my marks and sparks brown cotton cords. the company refunded me but no advice or explanation.

I used the pre-dye to lighten a pair of dark cream "polyester/viscose" curtains and they turned out fantastic and are now a light cream colour would definitely recommend. I had read that the pre-dye could not be used on certain synthetic materials so bear this in mind.