Looking at the skin: skin color
Article Abstract:
Skin color assessment to validate claims for skin-lightening products can be done via instrumental or visual methods. Cosmetic laboratories have widely use the Chroma Meter for the purpose. The instrument emits white light and measures detected light with silicon photocells. Alternative instruments include the Erythema Meter, the Mexameter and the Dermaspectrometer. All these instruments compare the intensity of reflected light in the infrared and red spectral regions. Study results have verified that instrumental assessments are more robust, objective and sensitive than visual evaluation. Skin-lightening results due to product use are small, but with the use of skin bioengineering methods, significant changes can be shown.
Comment:
World: Skin color assessment to validate claims for skin-lightening products can be done via instrumental or visual methods
Publication Name: Cosmetics and Toiletries
Subject: Pharmaceuticals and cosmetics industries
ISSN: 0361-4387
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Looking at the skin: Skin colour, the legitimacy of skin-lightening products
Article Abstract:
Skin bioengineering processes can be used to determine the efficacy of skin lighteners in vivo. There are an increased number of larger melanosomes in keratinocytes of black skin compared to white skin, and aggregation of melanin is associated with white skin, while dispersion of melanins are associated with black sink. Several instruments have been developed to measure the erythema and melanin content of skin. When studying human subjects, a double-blind procedure is the most appropriate blinding process, and the more subjects, the greater the power of any statistical tests.
Publication Name: Cosmetics and Toiletries
Subject: Pharmaceuticals and cosmetics industries
ISSN: 0361-4387
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Technically speaking
Article Abstract:
The use of natural compounds to prevent skin aging has been of interest and the synergistic effect of alpha-glycolic acid on alpha-tocopherol antioxidant activity and melatonin in human skin homogenates has been studied. There are advantages to combining the ingredients in the same preparation. A review of modern formulations for hair care looked at the influence of chain length of fatty alcohols on hair luster, grip and compatibility. Hair grip and compatibility were found to improve by myristyl alcohol.
Publication Name: Cosmetics and Toiletries
Subject: Pharmaceuticals and cosmetics industries
ISSN: 0361-4387
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Technically speaking: Skin and Skin Care. Technically speaking. Skin care review 1995-1999
- Abstracts: Skin care review 1995-1999. Technically speaking
- Abstracts: Changing the countenance of pharmacology courses in medical schools. Pharmacology education in the USA: the role of graduate programs
- Abstracts: Working from home: freelance medical writing. Careers in pharmaceutical clinical development. Preclinical industrial research
- Abstracts: D1/D2 dopamine receptor interaction at the biochemical level. Dopamine receptor partial agonists could address the duality of cocaine craving