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Skin Care
New in Skin Care (page 7 of 22)
Sep 08, 2011 | 03:19 PM CDT
Dry Skin: Moisturizing and Emolliency
By: Bernard Idson, PhD, College of Pharmacy, The U…
Youthful skin is perceived as moist (or at least nondry), clean soft and virtually free of wrinkles. As consumers advance in age, concern about dry skin increases, and simply washing with soap and water gives way to us of products designed to treat the symptom, which all end up bearing some version of a moisturizer.
Sep 01, 2011 | 01:50 PM CDT
Lightening and Illuminating Skin With Acetylated Hydroxystilbenes From Rheum rhaponticum
By: Giorgio Dell’Acqua, PhD, and Christian Wagner,…
Skin discoloration and excessive pigmentation due to increased melanin production is associated with skin inflammation and aging. Therefore, an extract rich in acetylated hydroxystilbenes from Rheum rhaponticum was combined with panthenyl triacetate to test in the melanogenesis pathway. The complex strongly reduced melanogenesis and melanin accumulation in human skin explants, decreased melanin content in pigmented spots, increased skin brightness and enhanced skin radiance on the face of human volunteers in a double-blind clinical study.
Sep 01, 2011 | 01:45 PM CDT
Coffea bengalensis for Antiwrinkle and Skin Toning Applications
By: Marida Bimonte, Antonietta Carola, Annalisa Ti…
Coffea species have been widely evaluated for effects including oxidative stress protection and immunomodulation. The present study therefore evaluates the cosmetic activity of an extract obtained from cultured Coffea bengalensis stem cells. Results showed the extract imparted hydration activity in the keratinocytes, stimulated collagen synthesis in the fibroblasts and enhanced adipocyte differentiation starting from mesenchymal precursor cells.
Sep 01, 2011 | 01:39 PM CDT
The Photostability and Photostabilization of trans-Resveratrol
By: Craig Bonda, Jean Zhang and Anna Pavlovic, The…
In this study, the effects of ultraviolet radiation (UVR) on trans-resveratrol were documented, finding that UV radiation causes it to undergo rapid and extensive photoisomerization and some photodecomposition. The antioxidant activity of trans-resveratrol is correspondingly reduced. However, in the presence of ethylhexyl methoxycrylene, a photostabilizer used in sunscreens, the effects of UV exposure on trans-resveratrol are minimized, thereby preserving its antioxidant activity and, presumably, its bioavailability.
Sep 01, 2011 | 01:34 PM CDT
Ingredient Profile—Ascorbic Acid
By: Michael J. Fevola, PhD, Johnson & Johnson
L-Ascorbic acid (AscA), more commonly referred to as vitamin C, is best known for its vital role in human health and nutrition, where it functions as a cofactor in enzymatic reactions, such as collagen synthesis, and as an antioxidant.
Sep 01, 2011 | 01:30 PM CDT
Formula Anatomy Deciphered—Skin Lighteners
By: Eric S. Abrutyn, TPC2 Advisors Ltd.
The term “skin lightening” has been positioned in the cosmetic market to denote the return of skin’s color to a more natural transparent tone, providing a more even skin tone and lighter skin pigment. Topical skin lighteners suppress production of melanin pigment, prevent darkening of the skin or modify pigmentation such as blotches and freckles.
Aug 01, 2011 | 01:53 PM CDT
Vegetal-derived Emulsifiers for Improved Stability and Formula Efficiency
By: Luigi Rigano, Industrial Consulting and Resear…
The quest for PEG-free surfactants and emulsifiers has led to new classes of vegetal-derived, ethylene oxidefree ingredients for environmentally friendly personal care products. Two such ingredients, described here, are based on the combination of olive oil and vegetable proteins with the first derived from oat and the second, with glutamic acid. These materials provide mildness and skin protection benefits.
Aug 01, 2011 | 01:45 PM CDT
Alternative Ingredients for Sustainable Shampoo Development
By: Denis Bendejacq, PhD; Caroline Mabille, PhD; M…
In this article, several ingredients are reviewed for development of sustainable shampoo formulations. Some of the functional ingredients reviewed are plant-based alternatives to existing, petro sourced ingredients while others are mild, sulfate-free and/ or ethoxylate-free alternatives to existing surfactant systems, thickening solutions for challenging media based on naturally derived polymers and efficacy boosters that reduce the use of non-renewable actives with equal benefit for the consumer.
Aug 01, 2011 | 01:34 PM CDT
Ingredient Profile—Glycerin
By: Michael J. Fevola, PhD, Johnson & Johnson
Glycerin is a unique and versatile chemical with numerous applications; to adequately cover all of the aspects of this compound in a short column would be impossible. Therefore, this column will highlight some key facts about glycerin, but interested readers are encouraged to pursue further, more comprehensive reading on the ingredient.
Aug 01, 2011 | 01:26 PM CDT
Formula Anatomy Deciphered—Chelating Agents
By: Eric S. Abrutyn, TPC2 Advisors Ltd.
The mechanism for chelation, described as a chelate complex, is based on multiple bonding (polydentate ligand) around a single central atom.