Green Works Green Works Natual Laundry Detergent Review

I bought Green Works Natural Laundry detergent because I had a coupon.  I was really surprised when I did my first load of whites.  It was absoutely amazing when I took the whites out of the washer to dry them on a outside line and the sunlight hit the white.  Dirty socks, that had bottom stains that had not previously washed out, where completely white and bright white.  I am not certain how this product works, but if it is a natural product and works this well AND it is an environmentally friendly product, I am sold.  The product is slightly higher priced than many others, but the pay-off is well worth it.