Hi Alireno,
Other shampoos that don't contain SLS are Aubrey Oraganics Jay Shampoo. And below are a few of my favorites.
Earthly Delight Tropical Rain Shampoo -
$14.95 16 fl. oz. If you have a Whole Foods in your area, they sell it.
Ingredients: Distilled water, sage, rosemary, nettles, wheatgerm soap, horsetails, essential oils of neroli, cinnamon & coconut
Shampoo: African Formula Organic Curl Maintenance Shampoo. An All-Natural, Organic Shampoo that will not strip away the soft Curl from your hair. This shampoo leaves your hair very soft and it detangles and smells wonderful.
Ingredients: Purified water, Wild Honey, African Soap plant and Soapberry fruits. Papaya, Yucca Root, Wild Gourd fruits, Sea Kelp, Pepper Grass, Juniper leaves, Jaborandi and Horseradish; Oil of Nutmeg, Safflower Oil, African Shea Butter, Virgin Olive Oil and West African Palm Butter, Soy protein, Biotin, souluble Collagen, Vitamins A, C, & E, extract of citrus seeds and vegetable fragrance.
Also when it comes to SLS and other harmful ingredients, click on the link.
http://www.discoverhealthandwealth.com/toxic-ingredients.html