The dyed mulch is the lowest quality and cheapest to buy. The reason being it isn't cedar as L4H's stated but it's a great opportunity to market otherwise unusable by-products of a profitable source of income. Being Eco friendly simply means avoiding high landfill costs.
I've contacted the retailer who sells two difference products of this dyed mulch. They in turn contacted the manufacturers and neither would disclose of their ingredients using *enert* = "market competition" - which legally has protected them since 1949
They have informed me they are reconsidering selling this stuff as they have a reputation for going the extra mile to only import "friendly" wood. I'm fencing off where this mulch is and anyone whose read this thread should do the same. It's not a safe product for our pets, strays, wildlife even bugs IMO