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1.The best moisturizers
2.Both effective whiteners
3.Skin feel better than HA
PGA Provide Long-lasting Moisturizing EffectExperiments fromDepartment of Cosmetic Science,Providence University /confirm/ithat,PGA and the Hydrogel Moisturizer provides long-lasting effectto skin moisture,especially under hot dry place or under cold drywinter weather conditions.Fig.1 Effect reduction of Trans-EpidermalWater Loss (TWEL) byγ-PGAData from:Department of CosmeticScience,Providence UniversityFig.2 PGA Hydrogel with activeingredients synergistically enhances the moisturization effect ofskin cream.Data from:Department of Cosmetic Science,ProvidenceUniversity.Fig.2 shows that: Adding PGA Hydrogel into the skinlotion generally improves over 27% of moisturization to theskin;PGA Hydrogel also brings up more than 45% of moisturization oftotal active ingredients. Fig.3 PGA Hydrogel enhancesthe skin moisturization.Data from: Degussa, Germany Tests fromDEGUSSA (Germany) confirm that,PGA is a real long-lastingmoisturizing and skin care product.γ-PGA and the hydrogel formssmooth,elastic,moisturizing soft film on the skin.It enhances skinssmoothness,reduces skins wrinkles and improves skins firmness andelasticity.PGA Enhance the Skin Health Effectivelypromote the N.M.F inside the skinThe side chain of PGA has stronghydra ability,which can improve the skin moisture without break theskin moisture balance inside and outside.Used in skin-careproducts,PGA can strengthen the dry skin moisturizing effect orprevent normal skin from dry.γ-PGA can increase the production ofthe Natural Moisturizing Factor (N.M.F) such as pyrrolidonecarboxylic acid (PCA),lactic acid and urocanic acid (UCA),So as toenhance the skin internal moisturizing ability. (1) Anage-related deficiency state:Rough and dark (2) PGA Replenish the skin's own moisture balance: Brighter,smoother, softerFig.4 PGA enhances the growth of fibroblastcells,therefore enhances the skin health conditionData from:NattoBiosciences Co. Ltd.,Quebec,Canada. Enhance the Growthof Fibroblast Cells PGA enhances the growth offibroblast cells,therefore facilitates the skin healthcondition.Table 1 Cell Layer Density SampleTotal number of cellswithin monolayer (× 104)1#2#3#Mean (n=3)Control3.9 ± 0.36.7 ±0.34.6 ± 0.35.1 ± 1.5Test Extract, with 1%PGA (Na form), LM9.6 ± 0.47.7 ±0.27.6 ± 0.68.3 ± 1.1Data from: National Chung-Shing Univ. R/DReport.Inhibition on Melanin Biosynthesis Besides a powerful moisturizing capability,PGA also can whiten skinby controlling melanin synthesis to prevent and reduce wrinkles andfreckles.As shown in table 2,PGA has good skin whiteningeffect,more than 50% of the results of equivalent kojic acid orvitamin C.Comparison of the effectiveness of cosmetic formulationcontainingγ-PGA,HA and Collagen China Professional Cosmetic GradeGamma-poly-glutamic acid manufacturing enterprises-PGA
