Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 In a message dated 3/18/2004 12:59:31 PM Eastern Standard Time, AngiesHerbarie@... writes: classical bar soap I guess this is commercial beef fat soap? Andree Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 In a message dated 3/18/2004 12:59:31 PM Eastern Standard Time, AngiesHerbarie@... writes: classical bar soap I guess this is commercial beef fat soap? Andree Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 In a message dated 3/18/04 2:16:19 PM Eastern Standard Time, AndreeTerry@... writes: > classical bar soap > > I guess this is commercial beef fat soap? > Hi Andree, I don't know, it could be. But you make a good point, we may be comparing apples and oranges when we look at the " classical bar soaps " and some of the veggie super-fatted soaps. I'm not aware of any studies that specifically state a comparison between the superfatted ones and the others. Who knows, maybe it makes a difference? There's certainly lots of anectodal evidence to support that it does Angie The Herbarie Natural Source Ingredients for Toiletries & Cosmetics http://www.theherbarie.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 >A comparative study of the effects on the skin of a classical bar soap and a >syndet cleansing bar in normal use conditions and in the soap chamber test. > >Barel AO, Lambrecht R, Clarys P, on BM Jr, Paye M. Skin Res Technol. 2001 May;7(2):98-104. >Laboratory of General and Biological Chemistry, Faculty of Physical Education >and Physiotherapy, Free University of Brussels, Belgium. > >BACKGROUND/AIMS: The skin irritation potential of a body cleansing product is >often compared under exaggerated test conditions, although the product is >intended to be used at home with repetitive and brief contact with the skin. The >aim of this study was to determine how much patch testing is predictive of the >clinical, sub-clinical and subjective cutaneous effects of products used at >home by consumers for their normal hygienic cleansing. METHODS: A double-blind >comparative study of the normal use of an alkaline soap bar and a syndet at >home during 10 consecutive weeks was performed on two identical groups of 25 >healthy female subjects. The eventual skin changes observed at different >anatomical skin sites were evaluated by clinical visual examination and by >bioengineering measurements before the start of the study and then every 2 weeks. The >objective measurements were compared with the subject's perceptions of dryness, >tightness and product irritancy during the testing. RESULTS: The bioengineering >measurements did not show any significant changes on all the anatomical skin >sites, except for a small increase in skin pH with the classical soap bar. >However, a trend appeared, showing that the alkaline soap bar is perceived by the >subjects themselves as more of an irritant than the syndet bar. In the soap >chamber test, the bar soap showed a significantly higher irritancy than the >syndet bar. CONCLUSION: This study showed that cutaneous irritation induced by >cleansing products in patch testing is not necessarily predictive of the >irritation likely to occur in normal use conditions. Finally, a clear relationship >could be demonstrated between the results of the soap chamber test and the >consumer perception of both cleansing bars. Maurice -------------------------------------------------------- Maurice O. Hevey Convergent Cosmetics, Inc. http://www.ConvergentCosmetics.com ------------------------------------------------------- Quote Link to comment Share on other sites More sharing options...
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