Journal
PHARMACEUTICAL RESEARCH
Volume 33, Issue 12, Pages 2879-2890Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11095-014-1354-y
Keywords
connective tissue; elasticity; hyaluronic acid; hydration; inflammation; trans-epidermal water loss; wrinkles; elastic fibers; collagen
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In the field of aesthetic medicine there is an increasing demand for safe and effective hyaluronic acid (HA) fillers to counteract the aging process. We designed a study to evaluate the safety and histological biocompatibility of AliaxinA (R) Global Performance, a cross-linked HA filler and ViscodermA (R) Skink E, a product composed of non-cross-linked HA and a complex including vitamins, antioxidants, amino acids and minerals injected into the skin of guinea pigs. Then, we translated our findings into the clinical setting, administering a combination of these compounds to patients seeking a facial rejuvenation procedure targeting moderate-to-severe wrinkles affecting the nasolabial folds. The animal study showed that the two compounds did not induce any significant inflammatory reactions and increased collagen and elastic fibers in the skin. In the clinical setting, injection of AliaxinA (R) Global Performance, followed by ViscodermA (R) Skink E, resulted in a higher improvement in nasolabial fold hydration, trans-epidermal water loss and wrinkle aesthetic appearance, if compared with a protocol based on AliaxinA (R) Global Performance alone. In summary, we show evidence on the safety and mechanism underlying two new HA-based compounds of different cross-linkage and composition, proposing that they can be safely used in combination in patients seeking facial rejuvenation procedures with long-lasting efficacy.
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