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| Catalog Number | CI-FC-0043 |
| Product Name | Hydroxypropyl starch phosphate |
| CAS | 113894-92-1 |
| Synonyms | Amylopectin, phosphate, 2-hydroxypropyl ether |
| IUPAC Name | 2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethanol |
| Molecular Weight | 238.28 g/mol |
| Molecular Formula | C10H22O6 |
| InChI | InChI=1S/C10H22O6/c11-1-3-13-5-7-15-9-10-16-8-6-14-4-2-12/h11-12H,1-10H2 |
| InChI Key | JLFNLZLINWHATN-UHFFFAOYSA-N |
| Isomeric SMILES | C(COCCOCCOCCOCCO)O |
Hydroxypropyl starch phosphate is a modified derivative of corn starch, specifically designed to improve the performance of personal care products. By undergoing chemical modification, this ingredient achieves desirable properties, such as forming a cold gel with a light sensory profile and reducing shine while maintaining good spreadability. It is suitable for use in skincare and haircare formulations, including products for children and those used around sensitive areas like the eyes and mucous membranes, due to its compliance with various pharmaceutical and cosmetic microbiological standards. In emulsions, hydroxypropyl starch phosphate enhances stability across a broad temperature range (-30°C to 50°C) and contributes to viscosity and aesthetic quality. Its nonionic nature allows compatibility with a wide variety of ingredients, and its ease of dispersion in cold water facilitates simplified processing, reducing costs. Furthermore, this polymer exhibits beneficial skin conditioning and foam-enhancing properties, making it a versatile ingredient for both conditioning and cleansing applications.
de Camargo Junior, et al. 2023, Available at SSRN, 4674353.
It created and evaluated in this instance a silk fibroin active ingredient hair care product formulation with water, polyquaternium-7, silk fibroin, hydroxypropyl starch phosphate, glycerin and guar hydroxypropyltrimonium chloride. The cosmetic active component prepared with above turned out to penetrate hair fiber, impart mechanical characteristics and resist all types of broken and healthy hair. Also made the hair looks better because it healed the cuticle part.
Formulation preparation and use of the preparation.
· The cosmetic active above was used in aqueous solution (2.5% active, 97.5% water) and in a leave-on formulation (water, cetearyl alcohol, glycerin, cetrimonium chloride, cetyl alcohol, ceteareth-20, disodium EDTA, citric acid, methylchloroisothiazolinone, and methylisothiazolinone) with and without (placebo) 2.5% active.
· The tresses were all pre-washed the same way: 1 minute of wash with 8.1% sodium lauryl ether sulfate (SLES) solution and 1 minute rinse with water. After the rinse, the hair was treated with one of these: Solution Aqueous: Tresses were soaked in the 2.5% Fibroin protein matrix solution for 2 minutes and air-dried. Apply Leave-On Product: The leave-on (with or without 2.5% active) was applied to the full length of the dry, unsprayed hair tresses.
What is Hydroxypropyl Starch Phosphate and what are its main benefits in cosmetic and personal care products?
Hydroxypropyl Starch Phosphate is a modified, pre-gelatinized natural polymer derived from corn starch. It is designed to enhance the formulation of cosmetics and personal care products by forming cold gels with a light, non-greasy texture, reducing shine, and providing good spreadability. Its modification allows it to meet strict microbiological standards, making it suitable for use in children's products and those intended for sensitive areas such as the eye area and mucous membranes. Additionally, it enhances emulsion stability, aesthetics, and viscosity, and is versatile due to its nonionic character and compatibility with a wide range of ingredients.
How does Hydroxypropyl Starch Phosphate contribute to emulsion stability and formulation in personal care products?
In personal care emulsions, Hydroxypropyl Starch Phosphate aids significantly in stabilizing emulsions, enhancing their aesthetic qualities, and building viscosity. An emulsion containing this modified starch exhibits excellent stability across a wide temperature range, from -30°C to 50°C. This stability ensures that the products remain effective and maintain their desired texture and consistency irrespective of varying environmental conditions.
Why is Hydroxypropyl Starch Phosphate considered cost-effective and suitable for "one pot processing"?
Hydroxypropyl Starch Phosphate is dispersible in cold water without the need for homogenization, simplifying the manufacturing process and reducing production costs. Its compatibility with oils facilitates "one pot processing," allowing for a streamlined formulation process that integrates multiple ingredients in a single step, resulting in a more cost-effective and efficient production method. This capability translates into a reduced final product cost while ensuring a high-quality end product with pleasant sensory characteristics.
Can Hydroxypropyl Starch Phosphate be used in formulations designed for sensitive skin and areas like the eyes and mucous membranes?
Yes, Hydroxypropyl Starch Phosphate is suitable for formulations intended for sensitive skin and regions such as the eye area and mucous membranes. Its compliance with pharmaceutical and cosmetic microbiological standards ensures that it is safe for use in products targeting sensitive skin and delicate areas, including children's products. Its nonionic nature and broad compatibility minimize the risk of irritation, making it a reliable choice for these specific applications.
What makes Hydroxypropyl Starch Phosphate a preferred ingredient in cleansing and shampoo applications?
Hydroxypropyl Starch Phosphate possesses good foam-enhancing properties, making it an ideal ingredient for cleansing products such as shampoos and body washes. Its ability to boost foam quality enhances the cleansing experience without compromising the gentle attributes of the product. This, coupled with its excellent conditioning properties, ensures a balanced formulation that cleans effectively while providing a pleasant after-feel.
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