Hydrating Shampoo

Why it’s rated Use Caution

A product’s rating follows its most concerning indexed ingredient. Each ingredient links to its science card and the research behind it. How ratings work

• Cocamidopropyl Betaine Amphoteric Coconut-derived Surfactant / Impurity Irritant
  Use Caution
• EDTA (Disodium / Tetrasodium) Penetration enhancer; poorly biodegradable.
  Use Caution
• Cosmetic Preservatives (Mild) Milder preservatives; limit rather than avoid.
  Use Caution
• Sodium Benzoate Synthetic Preservative / Benzene Risk with Vitamin C
  Use Caution
• Citric Acid (Manufactured / Mold-Derived) Fermentation Byproduct / Mold & Inflammatory Response
  Use Caution
• Synthetic Fragrance / Parfum Undisclosed scent blend. A practical allowance: on its own it rates Caution (limit use), not Avoid — products with other flagged ingredients are still rated by those.
  Use Caution
• Gentle Surfactants & Humectants Mild, well-studied formulation basics (sodium hydroxide is fully reacted in soap-making).
  Clean
• Plant Oils & Butters (Cosmetic) Common plant oils, butters and waxes.
  Clean
• Glycerin Skin-identical humectant.
  Clean
• Water Plain water — no concern.
  Clean