Is this suitable for dark color wash as well?? Concerned about fading.

When I use Molly's with a dark load the wash water becomes very dark, blackish. I'm concerned Molly's is too strong and pulls the dye. I've observed this multiple times. I don't see this with conventional detergents. Because of this concern I will not use Molly's Suds on my darks. I did not see any fading but I bet if I continued using Molly's with my darks, I would. Maybe I have a bad batch but if not I think others would see the same thing if they checked their wash during the agitation portion of the cycle. Otherwise I think it is great for my whites.

So I know what is not in it, but what are the ingrediants?

the ingredients in this detergent remarkablyl remind me of the popular diy natural laundry detergent that is easy to find recipe to make by yourself by googling.. It has very basic ingredients that you can use to make your own detergent.. if you look up online there are ton of recipes for this kind of detergent I follow one recipe that works like a charm..a nd is super inexpensive. 1/2 cup Epsom Salt 1 1/2 cups Sodium Bicarbonate (baking soda) 1 1/2 cups Sodium Carbonate (washing soda) 1/4 cup Sea Salt I don't like mine to smell but some people add this to make their to be scented.. just pick any of your favorite essential oil kind and you are set. To me it is an overkill as to me the less smells the healthier. 20-25 drops Essential Oils optional

Is there a reason I shouldn't put this in the soap dispenser (my HE does accept powder detergent in dispenser)?

When I had resarched this a while ago, the best answer I found was it just doesn't dissolve as well. I add it to the tub first then add clothes. The only annoyance is the powder sitting on a dark item (like on a delay wash) can set in to that article of clothing- so that's why I add the powder first

What are the ingredients...I don't see anything listed?

Here is the list: Ingredients: Proprietary blend of sodium carbonate from the Green River Basin in Wyoming, sodium bicarbonate, epsom salt (epsomite) and sea salt. While there are no perfumes, which are neurotoxic and petroleum based, there is a very minimal amount of organic peppermint essential oil. You can find more information online on their website mollyssuds.com.