Page 209 - Cosmetology

hexanediol. See malic acid.

Digenea simplex extract. See algae.

dihydroxyacetone. Ingredient present in all self-tanners that affects the color of skin. It reacts with amino
acids found in the top layers of skin to create a shade of brown; the effect takes place within two to six hours
and it can build color depth with every reapplication.

diisopropyl adipate. Used as a film-forming agent, emollient, and skin conditioning agent.

diisostearoyl trimethylolpropane siloxy silicate. A skin conditioning agent in the silicone family. See
silicone.

dimethicone. See silicone.

dimethicone copolyol. See silicone.

Dimethicone Crosspolymer. A silicone derivative used as a stabilizing or suspending agent or as a
thickener. See silicone.

dimethicone fluoroalcohol dilinoleic acid. A film-forming agent that has water-binding properties due to
its linoleic acid component.

dimethiconol. See silicone.

dimethyl capramide. Functions as a stabilizer and solvent.

dimethyl sulfoxide. See DMSO.

dimethylaminoethanol (DMAE). What little research there is about DMAE relates to its effect as an oral
supplement, and the findings are mixed. DMAE, known chemically as 2-dimethyl-amino-ethanol, has been
available in Europe under the product name Deanol for over 30 years. As an oral supplement it is popularly
known for improving mental alertness, much like Ginkgo biloba and coenzyme Q10. However, the research
about DMAE does not show the same positive results found with the other two supplements. Because
DMAE is chemically similar to choline, DMAE is thought to stimulate production of acetylcholine. And
because acetylcholine is a brain neurotransmitter, it's easy to see how it could be associated with brain
function. However, only a handful of studies have looked at DMAE for that purpose and they have not been
conclusive in the least, while some have shown that DMAE may be problematic or not very effective

Dioscorea villosa extract. See wild yam extract.

dipentaerythrityl hexacaprylate/hexacaprate. A mixture of fatty acids used as an emollient and thickening
agent.

Dipotassium glycyrrhizinate. See anti-irritant and licorice extract.

Di-PPG-3 Myristyl Ether Adipate. A derivative of myristyl alcohol (a fatty alcohol) and adipic acid (a
buffering and neutralizing ingredient). It is used as skin-conditioning agent and solvent.

Dipsacus sylvestris extract. There is no research showing this to have benefit for skin

dismutin. Trade name for superoxide dismutase. See superoxide dismutase.

disodium ascorbyl sulfate. Form of vitamin C, although there is no research showing it to have any benefit
on skin.

disodium cocoamphodiacetate. Mild detergent cleansing agent. See surfactant.

disodium diglyceryl phosphate. Used as an emollient and thickening agent in cosmetics. See glyceryl
ester.

disodium EDTA. See EDTA.