Self-tanning lotions

In the fourth edition, we have added 20 new boxed topics and have updated many of the earlier ones. We have tried to include topics, such as self-tanning lotions and sugar substitutes, which are of interest to students today. We have included the most recent strategies for treatment of AIDS and new information on the use of genetic engineering to treat a variety of genetic diseases. 

Over the years research has improved the quality of the tan that is produced. Early self-tanning lotions produced an orange tan the tans from today s lotions are much more natural. The DHA used today is in a much purer form and the other components of the lotion have been redesigned to promote greater penetration. Research has also taught us that the tanning reaction works best at add pH so newer formulations are buffered... 

More recently some companies have added a new sugar, erythrulose, to the self-tanning lotions. 

Polyacrylamide is used in a wide range of cosmetic products such as moisturizers, lotions, creams, self-tanning products, etc. Polyacrylamides were first used as an implantable carrier for sustained delivery of insulin to lengthen the life of diabetic rats. Since then, various drug delivery systems based on polyacrylamide have been developed. It is also used as a carrier for other bioactive macromolecules and cells to produce the desired effects. Polyacrylamide-chitosan hydrogels are biocompatible and are used for sustained antibiotic release. Polyacrylamide is also used in extra corporeal toxin-removing devices, which remove unwanted toxic substances and subsequently returns the detoxified component to the circulation effectively. The function of polyacrylamide in an extracorporeal toxin removal modality is to provide a support matrix for immobilization of the functional parts or ligands. 

A consumer aeeeptance barrier to the use of sohd silicon in virtually all dermatological formulations is its dark gray color. While with brown porous silicon powders one can match skin tones, it still remains a challenge with sunscreen lotions to maintain the white color that consumers associate with this product, before application to the skin. In this regard, bronzer (self-tan) formulations (see Fig. 2) could be a more suitable target for mesoporous silicon. 

Chem. Descrip. C14-22 alcohol and C12-20 alkyl glucoside Uses Emulsifier for personal care low-vise, emulsions including body lotions, fluid creams, sun sprays and self-tan products, fluid foundations Features Natural provide Montanov S [Seppic]... 

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