Health & Environmental Research Online (HERO)


Print Feedback Export to File
7903992 
Journal Article 
Formulation and characterization of some oil in water cosmetic emulsions based on collagen hydrolysate and vegetable oils mixtures 
Danila, E; Moldovan, Z; Kaya, MGA; Ghica, MV 
2019 
1 
Pure and Applied Chemistry
ISSN: 0033-4545
EISSN: 1365-3075 
De Gruyter 
91 
9 
1493-1507 
English 
WOS:000489292400007 
The present study was focused on the preparation and characterization of different topical oil in water emulsions based on natural ingredients such as collagen hydrolysate and vegetable oils mixtures. As oil phases, mixtures of coconut, almond, jojoba, avocado oils (in different ratios) were used while the water phase consisted in lavender water. As emulsifier, a plant based product containing glyceryl stearate and potassium stearate was incorporated (in the concentration range 4-5 %), while as rheology modifier xanthan gum was used (in the concentration range 0.2-1 %). As preservatives, Cosgard (containing benzyl alcohol, salicylic acid, glycerol, ascorbic acid) and mixtures of two essential oils (lemon and lavender) were selected. The designed formulations were assessed by means of their physico-chemical properties (pH, viscosity, thixotropic behavior), optical microscopy analysis and sensorial characteristics. The obtained emulsions were found to present pseudoplastic and thixotropic behaviors, adequate for cosmetic skin care product formulations. © 2019 IUPAC & De Gruyter. 
Chemistry for Beauty and Health 2018; O/W cosmetic emulsions; rheology; thixotropy; vegetable oils