Biomedical subjects
L Ness
Publications and source records attributed to L Ness.
The safety-in-use of cosmetics and toiletries.
1. Manufacturers of cosmetics and toiletries have a clear responsibility under Article 2 of the EEC Cosmetics Directive to ensure that their products are safe for use. 2. They have shown that they are able to discharge this responsibility, as illustrated by the type of safety assessment programme described in this paper and by market-place experience. 3. Considerable resources are invested by industry in safety assurance. As might be expected, this is particularly true of larger companies which have been responsible for many recent technological advances. 4. Industry will continue to regard the safety of its products as paramount, and contends that existing legislation is more than adequate to ensure continued safety-in-use.
Brain norepinephrine, dopamine, and 5-hydroxytryptamine concentration abnormalities and their role in the high seizure susceptibility of epileptic chickens.
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An epidemiologic study of factors affecting extrinsic staining of teeth in an English population.
A survey is described in which extrinsic staining of teeth was assessed by practising dentists during routine clinical examinations. Habits information was also supplied by patients. The results show that extrinsic staining is markedly influenced by smoking habits and age, and that males tend to have more staining than females. The effect of tea and coffee consumption was not pronounced. No effect attributable to the use of a stannous fluoride toothpaste was observed.