List of Ingredients Absolutely Prohibited

Sulfates: Breaks adhesives.

Alcohol (Denat, Ethanol, SD Alcohol): Extremely drains moisture.

Silicone oil (large amounts of dimethicone): builds up into a film, hindering subsequent nutrient absorption and making it difficult to clean.

Protein/Keratin: Over-supplementation can make hair stiff, brittle, and breakage.