Scientists tested 10 popular synthetic braiding hair products to see if they contain heavy metals and volatile organic compounds (VOCs) and found carcinogens, lead, and VOCs such as acetone. In 2023, ...

aliquots, each containing 20 gm. of acetoacetate. Thawing was performed slowly, at room temperature, to minimize degradation to acetone. Assay at the time of the last infusion showed that ...