November 2016 in “University of the Arts London Research Online (University of the Arts London)” Shampoos with polymers and dyes help maintain and enhance hair color vibrancy.
September 2023 in “International Journal of Cosmetic Science” The shampoo improves hair conditioning without using silicone.
4 citations
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March 2021 in “Journal of Surfactants and Detergents” Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.
2 citations
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January 2006 in “International Journal of Cosmetic Science” The study found that certain conditioning compounds can penetrate hair and potentially improve its resistance to damage.
December 2014 in “Nicolaus Copernicus University Repository (Nicolaus Copernicus University)” Polyquaternium-7 improves hair condition.