I think its VERY important to watch out for Chemicals in your Shampoo, Body Lotion or what ever you use for your Skin. You have to think in a whole other way, would you eat the stuff you place on your skin, if the answer is no, then its probably not good for you. If you now used a Natural shampoo I bet you think a little different, of cause you would not eat it, it just feels safer. I think we underestimate the danger in what we use on our Body, the Body in everything in like when you eat.

Now I have listed some stuff to avoid :

• BHA and BHT: In moisturizer, makeup, etc. May cause cancer and interfere with hormone function. Harmful to fish and other
  wildlife.
• Coal tar dyes: Look for P-PHENYLENEDIAMINE in hair dyes, and colours
  identified as “C.I.” followed by five digits in other products. Potential to cause cancer and can be contaminated with heavy metals
  toxic to the brain.
• CYCLOMETHICONE and siloxanes: Widely used in moisturizer, makeup, hair
  products, etc. May interfere with hormone function and damage the liver. Harmful to fish and other wildlife.
• DEA, MEA and TEA: In creamy and foaming products such as moisturizer,
  shampoo. Can react to form cancer-causing nitrosamines. Harmful to fish and other
  wildlife.
• DIBUTYL PHTHALATE: In nail products. Toxic to reproduction and may interfere
  with hormone function. Harmful to fish and
  other wildlife.
• Formaldehyde-releasing preservatives:
  Look for DMDM HYDANTOIN, DIAZOLIDINYL UREA, IMIDAZOLIDINYL UREA,
  METHENAMINE, or QUARTERNIUM-15 Widely used in hair products, moisturizers,
  etc. Formaldehyde causes cancer.
• Parabens: Widely used in makeup, moisturizers,
  etc. May interfere with hormone function. Associated with breast cancer.
• PARFUM: Widely used even in some products marketed as “unscented” (often the last ingredient). Mixture of chemicals that can trigger allergies and asthma. Some linked to cancer and neurotoxicity. Some harmful to fish and other wildlife.
• PEG: Widely used in conditioners, moisturizers, deodorants, etc. Can be contaminated with 1,4-dioxane, which may
  cause cancer.
• PETROLATUM: In hair products, lip balm/lipstick, skin care products. Petroleum product that can be contaminated with cancer-causing impurities.
• SODIUM LAURETH SULFATE (SLES) and SODIUM LAURYL SULFATE (SLS): In products that foam such as shampoo, cleansers, bubble bath. SLES can be
  contaminated with 1,4-dioxane, which may cause cancer. SLS may damage liver. Harmful to fish and other wildlife.
• TRICLOSAN: In “anti-bacterial” products such as toothpaste, soaps, hand sanitizers. May interfere with hormone function and contribute to antibiotic-resistant
  bacteria. Harmful to fish and other wildlife.
  

If you find some good Natural Cosmetics like Shampoo, Shower gel or Body Lotion let us know we can post those here.