I have doggedly got half way through a tube of Murad Recovery Treatment Gel and can honestly say it is one of the least effective potions I have used. It is one of the products in Murad's Redness Therapy range that is supposed to be good for, well, calming redness. I am more perplexed than frustrated by the fact it has done absolutely nothing for me after six months because when I look at the ingredients, it really should work.
It has two ingredients used for treating acne: potassium azelaoyl diglycinate and disodium lauriminodipropionate tocopheryl phosphates, hydrogen peroxide, plus anti-inflammatory liquorice. There are beneficial pomegranate and soy and illite (a mineral clay with healing properties). Then there are some ingredients such as saccharomyces/copper ferment (yeast fermented with copper ions) that are possible anti-oxidant but evidence that they are good for the skin is sparse.
I can only imagine that these are in concentrations too small to work. I read somewhere, for example, that potassium azelaoyl diglycinate (a derivative of azalaic acid) has to be in a concentration of 20%.