Cosmetic elegance

Evaluation of the cosmetic elegance of topical preparations can be accomplished scientifically, but it is questionable whether physical experiments on system rheology and the like offer appreciable advantage over the subjective evaluations of the pharmacist, the formulator, or other experienced people. Persons who use cosmetics are particularly adept and helpful as evaluators. 

Elegance is not a primary concern in the case of Rx drugs but impacts marketing of OTC drugs and helps to ensure patient compliance. By contrast, any feature that detracts from the elegance (appearance, odor, texture, etc.) of a cosmetic interferes with its marketability and acceptance. As a matter of fact, cosmetic elegance is the essential attribute of a successful cosmetic product. 

Pentaerythritol Ester As with glycerol esters, the esters are produced by esterification of pentaerythritol with the desired fatty acids. For example, under defined reaction conditions and use of stearic acid in defined concentration, pentaerythritol distearate has been recently developed as an off-white wax with very weak odor (Cutina PES). This type of product is offered as co-emulsifier and consistency factor for cosmetic products with high sensorial elegance and can be applied in various formulations (Fig. 4.17). 

The secret to younger-looking skin The best moisturizer there is These statements are often heard when consumers talk about various cosmetic products, but it is surprising that this high praise also refers to the very common and not-so-elegant material known as petroleum jelly, or petrolatum. So, what exactly is this decades-old ingredient that elicits such comments from people ... 

Invert soaps do not appear in nature but are important synkinons in the preparation of artificial membrane structures. The most common application of such monolayers is a cosmetic one. For centuries people smeared fats on their hair to make it shiny, but the hair then stuck together. Invert soaps adsorb strongly to hair proteins and provide them with the elegant luster of a monolayer and the fullness of non-greasy and non-polar hair. Hair with a nonsticky hydrocarbon monolayer on the surface looks irresistibly shiny, fluffy, and clean. Combinations with polymers, such as silicones, proteins, and poly(vinyl pyrrolidone) then help to build even more body in leave-in conditioning products. 

Many different derivatizations have been tested on native proteins and protein hydrolysates in recent decades, to enhance and refine their functionality, impart new features and properties, or simply improve solubility and cosmetic acceptance. Some of the resulting products have been proved effective and commercially successful, others remain elegant laboratory curiosities, others may represent interesting prospects for future cosmetic applications. In the following survey, protein derivatives are classified according to the kind of reactive groups involved in the derivatization. 

Concentrated surfactant base for preparation of elegant shampoos and cosmetic products. Produces luxurious creamy lather in formulated personal care systems. 

Silk is a valuable material that is used for sewing threads, apparel products, and home textiles, as well as for technical and cosmetic products. As ready-made product, silk is predominantly used in women s and men s outerwear such as blouses, shirts, scarves, drapery, ties, and elegant evening wear. Silk is also used for linings, intimate wear, and kimonos. In the area of home textiles, silk is used mainly for fancy tapestry, upholstery fabrics, wallpapers, velvet, plush, and carpets. In the area of technical fabrics, silk is used for typewriter ribbons, as isolation material, in surgical products, or special fishing twines. Silk powder is added to lipsticks, skin creams, and soaps. 

Today, the concept of cosmetic is perceived by part of society as a necessity, a way to feel better about oneself and about others. However, cosmetic products are valued not simply for their pleasant textures and elegant feel, but also, very fundamentally, for their effectiveness. The idea that they are inert substances has totally disappeared. This new perception is largely due to the biological activity exerted by their innovative active ingredients. 

Uses Liq. absorption base, enhancing appearance and elegance of cosmetics and pharmaceuticals, skin and hair care prods. stabilizer for w/o or o/w emulsions, liq. make-up, pigmented systems plasticizer in hair sprays solvent in aerosols Properties Almost colorless to pale yel. cl. oily liq., faint char, odor sol. in min. oil, IPA, IPM partly sol, in ethanol insol. in water sp.gr. 0.84-0,87 HLB 8.0 acid no. 

Uses Patented mild substantivity agent, skin conditioner, thickener for personal care prods. forms stable, low pH, smooth and elegant cosmetic emulsions Properties Lt. yel. paste sp.gr. 1.01 dens. 8.4 Ib/gal HLB 14 m.p. 40 C pH 7.6 (10% in 50/50 IPA/water) 35% solids Toxicology Extremely mild to skin and eyes ARLASILK Phospholipid SV [Croda Inc]... 

Uses Emulsifier, thickener for w/s emulsion in antiperspirants, facial washes, skin-care and color-cosmetics or w/o formulations including elegant skin care prods. emulsion stabilizer for creams and lotions emollient in aq.-alcoholic toners Features Highly efficient and economical... 

Uses 0/w emulsifier, base for cosmetic and pharmaceutical o/w emulsions, ointments, elegant cream formulations, esp. for antimycotic preps., vaginal creams (antifungal, contraceptive) excipient for dermal/transdennal pharmaceuticals Features Self-emulsifying produces emulsions with exc. skin and mucosal tolerance... 

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