I've never tried the IOD No. 63 spray, but have tried the Silky Coating Line Brush Spray & it's great for preventing mats between baths. I've been using the shampoo & conditioner for about 3 weeks now & notice less tangles on my boys who's hair mats & they're both sensitive.
The Stuff is great but does have a silicon agent (ingredients are not listed on the bottle
), so some people do not like that it can weigh the hair down if used heavily. It does repel urine & dirt stains just like the CC Ice on Ice & really does help brush out tough mats.
I've never experienced weighing down of the hair bc I use so many different products on them...