Skin Deep - Clinical & Cosmetic Dermatology Blog

Skin Deep is a blog for dermatologists and skin care professionals with focus on theoretical, cosmetic and aesthetic dermatology. This blog is associated with ‘Dermatologists Sans Borders’ one of the largest curated groups of skin care professionals on facebook. If you are looking for non-technical information, please visit

Pretty little things

Horizon (Photo credit: beapen)
Nano particles of titanium dioxide and zinc oxide are being increasingly used in sunscreens. A thick layer of physical sunscreen can appear too white and bulky on the face to be cosmetically acceptable except for mean looking fast bowlers in cricket. However nano scale physical blockers will not scatter visible light nor aggregate in clumps thereby giving better cosmetic results while retaining efficacy. Miniaturization of these particles also increase their filtering capacity.

Labels: ,

commentAdd Your Comments/Suggestions/Criticisms! | View Comments | Links to this post

About Me

As a Dermatologist and Informatician my research mainly involves application of bioinformatics techniques and tools in dermatological conditions. However my research interests are varied and I have publications in areas ranging from artificial intelligence, sequence analysis, systems biology, ontology development, microarray analysis, immunology, computational biology and clinical dermatology. I am also interested in eHealth, Health Informatics and Health Policy.


Bell Raj Eapen
Hamilton, ON