37 citations,
October 2017 in “Saudi pharmaceutical journal” All evaluated shampoos meet Saudi standards.
2 citations,
May 2020 in “Journal of the American Academy of Dermatology” Using certain hair products may increase breast cancer risk in black women.
September 2023 in “International Journal of Cosmetic Science” Both shampoos increased scalp germ numbers but did not change the overall microbial community composition.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.