Celox is a protein wich practically works the same as the Quick-Clot. It's absorbed by the body, so that it doesn't have to be debrided out of the wound, but with the new quick-clot, removal is a piece of cake.
Celox are granulates, but the QC- ACS comes in a gauze-pouch. If it's windy, you will have some of the Celox blowing away..
It's always better to get training on the use of first-aid products, but in a emergency, you can use Quick-Clot and Celox with limited instructions.
I think that the prices are very similair.
Lastly, the Quick-clot ACS+ versions don't get as hot as the 'old' version.
From the ETS Shot 2007 report:
Celox
While not exactly new, Celox received their FDA approval in June of 2006; their hemostatic agent is worth mentioning as it is just now being widely distributed and readily available to civilians. Hemostatic agents are designed to stop bleeding by "clotting" the blood. Hemostatic agents have become popular in the last few years as the military seeks to curb the number one cause of preventable death on the battlefield, uncontrolled hemorrhaging. Many of these agents work well on minor wounds, but failed to adequately stop major bleeding. Other agents worked on major bleeding, but fail to perform well in the cold or produced too much heat in use. Others proved no better than a simple pressure dressing.
2006 saw a few new hemostatic agents introduced that show more promise. While many of these are unavailable to the public, and would be cost prohibitive for most users even if they were available, Celox is not only available, but is inexpensive enough to be included in many kits. Better yet, it works. Celox has been tested and shown to work on arterial bleeding, hepranized blood, and hypothermic patients (an issue with some earlier agents) with no known side effects. Asscociates who have been using it on the job validate every one of the claims made by Celox. Celox sells for $17 for a 15g package and $25 for a 35g package.
No special training is required for Celox; the on package instructions should be adequate for most users. The directions can be simple stated as; "open envelope, dump contents in wound, apply pressure for 5 minutes, wrap with dressing for transport" (refer to actual instructions before use). A couple 15g packs would be a great addition to anyone's first aid or medical kit. Be aware that Celox has a limited shelf life, like many medical products, of 3-years. For most markets, Celox is distributed by SAM Medical Products (yes, the SAM Splint folks).