The best sulfate-free shampoos are the moisture-preserving cleansers your hair and scalp have been begging for—especially if you’re dealing with dryness, frizz, fading color, or irritation. Unlike ...

† Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China ‡ State Key Laboratory ...

Chondroitin sulfate is a relatively safe supplement used for improving knee pain and function. Prescription-grade chondroitin sulfate may be more effective than over-the-counter nutrition supplements ...

Foods that contain over 100 parts per million (ppm) of sulfite include bottled lemon juice, dried fruits, and wine. Sulfite sensitivity is not the same as a sulfa allergy. It's rare to experience a ...