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Contains harmful ingredients
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COLLEEN ROTHSCHILD

Smooth & Shine Hair Serum

Last verified: February 20, 2026

  • Cyclopentasiloxane
  • Dimethicone
  • Disiloxane
  • Gossypium Herbaceum (Cotton) Seed Oil
  • Melia Azadirachta (Neem) Seed Oil
  • Hibiscus Sabdaria Seed Oil
  • Fragrance
  • Cinnamidopropyltrimonium Chloride

Why This Product is Rated STOP

Smooth & Shine Hair Serum by COLLEEN ROTHSCHILD has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.

We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.

Learn more about how Million Marker scores products →

Frequently Asked Questions

Smooth & Shine Hair Serum by COLLEEN ROTHSCHILD - Non-toxic Hair Styling + Treatment product rated STOP by Million Marker, free from BPA, phthalates, and parabens

Where to buy

COLLEEN ROTHSCHILD Google Search

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