Viscosity of shampoo glabra extract; however, consumers were dissatisfied with the odor of shampoo. 0 65 Milk 10 120 In shampoo products, viscosity is an important factor for it to be a functional product [48]. Viscosity is measured by looking at the force required to spin a plate through the fluid. Common shampoo thickeners include polymers, silicones, and salts. Although desired shampoo viscosity varies between consumers (male vs. Jan 15, 2025 · The high viscosity of shampoo is a carefully engineered feature that serves several critical purposes: 1. The weight of the shampoo only (solids) after drying was calculated. May 2, 2019 · The viscosity of products like shampoo and conditioner need be thick enough to handle but fluid enough to be squeezed out of a bottle. He conducted pioneering research in the fields of fluid dynamics, light, fluorescence, polarization and chemical analysis. Water content was Surfactants emulsify oily dirt on hair and scalp, then the dirt can be pulled into water and washed off easily (Fig. Nov 2, 2017 · Introduction. This work provides a good starting point for developing robust predictive models for in situ viscosity measurements for shampoo manufacturing, where further work into different sources of variation and the extent of the modelling capability with regards to different formulations should be studied. Measuring the viscosity of body wash or shampoo is an important part of quality control. The viscosity of the shampoos was measured Oct 11, 2021 · @ketchito I didn’t neutralize my Carbopol as the final pH of my shampoo fell around 6 to 6. Higher viscosities are preferred for low- or no-shear rate situations, like long-term storage stability and holding shampoo in palm of hand before applying it to scalp and hair. It offers several benefits that make it an ideal choice for this purpose. Ease of Application: High viscosity ensures shampoo doesn’t run off your hair too quickly, allowing you to distribute it evenly throughout your scalp and hair. May 4, 2025 · The improved viscosity provided by HPMC K4M ensures that the shampoo or conditioner adheres to the hair strands, allowing the active ingredients to penetrate and provide their intended benefits. Measuring the viscosity of body wash or shampoo is an important part of quality control. g. 10-1. 25% increments with mixing until viscosity target is met. The viscosity affects both the cleansing efficiency and the user perception of a shampoo product. 72±0. The PH of the Formulated Shampoo was found in the range of 7. Shampoo, however, doesn’t follow this simple rule. The viscosity Download scientific diagram | Shampoos viscosity at 25 o C from publication: Effect of Preservative in the Physicochemical Stability of Cosmetic Products Based on Natural Resources from Costa Aug 10, 2011 · To understand why salt affects the viscosity of a shampoo (or body wash) you have to first realize that shampoos are mixtures of surfactants that arrange themselves in tiny structures called micelles. 4 days ago · pH value: The pH of the shampoo should be between 5. Jun 7, 2024 · The viscosity of shampoo is a crucial factor that influences its performance, application, and overall user experience. Sofraser’s viscometers solutions for shampoo viscosity. One main rheological parameter that correlates with the thickness and flow properties of a shampoo is the viscosity (it’s resistance to flow). n 1 is number of drops of distilled water. 5. Shampoo is definitely a product in which flow is part of its quality perception. Viscosity was measured by using viscometer and it was recorded. 02, 22. One main rheological parameter that correlates with the thickness and flow pro-perties of a shampoo is the viscosity. What should i do to enhance viscosity. 02±0. Sample-4: Hairs with sebum and washed with shampoo*, F 2 Sample-5: Hairs with sebum and washed with shampoo*, F 3 Sample-6: Hairs with sebum and washed with shampoo, MS 1 Sample-7: Hairs with sebum and washed with shampoo, MS (*shampoo means 10% w/v formulation in distilled water) 13. In the case of shampoo, viscosity is an important factor as it affects the product’s ability to spread evenly on the hair and scalp. Like all rheological problems, achieving this compromise requires an understanding of the material's microstructure, the parameters that affect the viscosity and an efficient and effective means of measuring it. Surfactants form the ‘heart’ of most shampoo formulations and perform many different roles in these systems 1-4. 50. 945: 1. 8 The cleansing effect of a shampoo can be observed by comparing the scalp image under a microscope before and after using shampoo (Fig. evaporating dish with shampoo was placed on the hot plate until the liquid portion was evaporated. female, adult vs. Products from toothpaste to color cosmetics to shampoo and conditioner are all impacted by viscosity. Jan 15, 2025 · Improved Viscosity and Thickening Properties of HPMC K4M in Shampoo and Conditioner FormulationsHPMC K4M, also known as Hydroxypropyl Methylcellulose, is a widely used ingredient in the formulation of shampoos and conditioners. us/cm. Liquids which are considered “rich” usually have a higher viscosity (i. My formula is SLS liquid = 11% Cocamidopropyl betaine= 9% Glycol Distearate=3% Glycerine= 5% Sodium chloride= 2% EDTA = 0. 40 Pa s. I am working on my shampoo product. , they may not pour too well. It is the most suitable instrument with its Mar 16, 2023 · Determine the Desired Viscosity. They are inexpensive and effective. The most common molecule types used commercially to carry out the specific roles are discussed, with each of their fundamental functions outlined in detail. 1. May 19, 2018 · Any shampoo performance drawbacks from too much salt? less foaming? What about the other viscosity-lowering alternatives proposed below Alcohol? too drying? Propylene glycol? Polysorbate 20? less foaming. In this article, we will explore the advantages of using HPMC as a thickener in shampoo formulations. It’s a non-Newtonian fluid, meaning its viscosity changes depending on the applied shear stress. Sep 25, 2018 · Viscosity Correction for Body Washes and ShampoosSometimes as we add ingredients such as essential oils or tinctures to a wash or shampoo, it can become too Download scientific diagram | An example salt curve depicting the effect of NaCl on the viscosity of binary surfactant micellar solutions of CAPB and SLES (2:8 at a total of 10% w/w) diluted with A shampoo is not only ex-pected to be easy to use but to meet also sensory criteria that will appeal to the customer. 1). 06, 187±0. Shampoos having viscosities below this level tend to be runny; and if the viscosity is over 2000 cps. 5% Perfume = 0. They complex with the anionics to form an enlarged surfactant micelle that builds viscosity. Dec 21, 2011 · To control the viscosity of many shampoos, salt is added to the surfactant system. The viscosity of the shampoo solution depends on the size and packing structure of micelles (tiny vesicles of surfactants). Sep 28, 2013 · The viscosity of the shampoo affects its performance since it should not run between the fingers of the person who is bathing the dog or the dog's hair during washing. Viscosity measurements can be used to inform on how to improve shampoo formulations for household and industrial container-filling applications. Liquid: Specific Gravity @ 16°C: Absolute Viscosity cP: Temperature C° Viscosity Type N = Newtonian T = Thixotropic Other more effective viscosity builders include betaines. The Non-Newtonian Twist: Shampoo’s Unusual Behavior. This makes them Viscosity and flow characteristics: A wide variety of viscosity builders can increase a shampoo formula’s viscosity; these include alkanolamides, betaines, amine oxides, polymers, PEG esters, salt etc. , daily use, clarifying, or volumizing), and the overall aesthetic you want to achieve. 223cps. Indulgent textures in yoghurts: Lubrication and viscosity; Tribology testing of sugar-replaced soft drinks; Rheology of Starch Gels – Gel Strength and Rigidity; Rheology of condiment sauces of similar viscosity; Cling and Coating Viscosity of Glazes and Foods; Cosmetics and Personal Care. Feb 15, 2011 · Body wash/shampoo have viscosity ranges from 5000 - 20,000 cps. The interaction between salt and long chain surfactants transforms the small spherical micelles of the surfactants into larger rod-like or lamellar or even liquid crystalline “type” structures that increase the viscosity of the liquid shampoo. An efficient product should possess a high value of viscosity at a low shear speed for instance; there Jun 12, 2023 · Identifying critical viscosity operations and the causes of viscosity changes improves ingredient production management and reduces overall process time. Rheological evaluation The viscosity of the shampoo was calculated by using viscometer. 5 and 8. To meet customers’ expectations the liquid has to be applied easily to the skin while still adding a “rich” feeling. Shampoo thickeners are often used to increase the viscosity and consistency of the product, thus making the shampoo easier to use and apply to the hair, as well as increasing the shampooing effect of the product. Viscosity Charts & Conversion Tables DAIRY PRODUCTS ButterFat 42 110 ButterFat 20 150 ButterDeodorized 45 120 CottageCheese 30,000 65 CocoaButter 50 140 CocoaButter 0. If you haven’t set a target viscosity find a competitive product that looks like what you want. Active ingredients: The active ingredients in the shampoo should be within the limits specified by the BIS. It is a cellulose derivative that offers numerous benefits, including improved viscosity and thickening properties. However, the challenge Dec 19, 2024 · This difference in resistance is due to their viscosity. Jun 14, 2023 · Without the proper viscosity to keep these suspensions in place, major stability issues will occur. The texture of the shampoo seems too thick and clumping together. But lotions, gels, and other products vary. 2% Methyl Paraben= . R 2 is surface tension of shampoo solution. 02. As salt is added, the viscosity starts to increase up to a certain concentration of the salt after which any more salt will reduce the viscosity. Microbial limits: The shampoo should be free from harmful bacteria and other microorganisms. Shampoos must have easy, short flow properties out of the bottle, and a consistency that is not stringy. Overview; Shampoo Foam Analysis – Head and Shoulders • Viscosity of the liquid shampoo is determined using a Brookefield viscometer • 100 mL of the shampoo is taken in a beaker and the spindle is dipped in it for about 5 min and then the reading is taken. Rheological evaluations The viscosity of shampoos was determined by using Oswalt’s viscometer. Jul 12, 2022 · A lower extensional viscosity decreases the lifetime of the shampoo strings and reduces the likelihood of spilling shampoo over the bottle cap. Viscosity: The viscosity of the shampoo should be between 600 and 1,200 centipoises. 5% The texture of shampoo is not enough viscous to meet the demands of customer. . If desired, viscosity can be adjusted as follows: To increase viscosity, adjust shampoo pH down with small amount of dilute citric acid solution or add Mirataine BET C-30 (cocamidopropyl betaine) in 0. shampoo, surfactants, viscosity, anionic May 18, 2023 · [4, 98, 100, 106] Polymer chain entanglements, the formation of physical crosslinks and networks all drive the viscosity of the shampoo up, however competitive relaxations, such as reptation, sliding of contact points and micelle breakage all act to lower the shampoo viscosity. Dec 23, 2022 · [4, 98, 100, 106] Polymer chain entanglements, the formation of physical crosslinks and networks all drive the viscosity of the shampoo up, however competitive relaxations, such as reptation, sliding of contact points and micelle breakage all act to lower the shampoo viscosity. A comparison of consistencies of two types of shampoo by forward and backward extrusion: Figure I. I am new in cosmetics. The viscosity of 10,000 cS to 300,000 cS is normally used in hair care products but in order to increase the conditioning effect, the higher viscosity of PDMS (above 1,000,000 Cs) is also used and the low viscosity of PDMS (under 350 cS) has to be used together due to lower solubility. The viscosity of the licorice shampoo was better than the commercial and nonherbal shampoo due to the nature of saponins that exist in the G. e. In the cosmetic industry the overwhelming instrument of choice for measuring viscosity is the Brookfield Viscometer. Nov 18, 2018 · Kinetic Viscosity = Dynamic Viscosity/Density (OR) CentiStokes = CentiPoise/Density "Stokes was a professor at the University of Cambridge for more than 50 years. One of the main benefits Sep 13, 2005 · The salt curve is well documented in the literature, whereby the viscosity of a solution initially increases with the addition of salt but then decreases with further increases in salinity. Apr 20, 2012 · But basically you measure viscosity to ensure your product is of consisten quality and that it remains stable. How to measure viscosity. Before selecting a thickener, decide on the desired viscosity for your shampoo. 12 is weight of beaker with shampoo solution. The MIVI can be used to measure the viscosity of all types of liquid and viscous samples. Additionally, they contribute elec-trolyte (sodium chloride) that also builds viscosity. 5 210 CondensedMilk 40–80 100–120 CondensedMilk,75%Solids 2,160 70 Cream,30%Fat 14 60 Cream,45%Fat 48 60 Cream,50%Fat 112 60 Cream,50%Fat 55 90 Milk 2. In general, higher charge density causes the micelles to repel and result in a thinner solution. For now, the viscosity of the shampoo is a little bit too thick for me because it’s difficult to lather at the beginning. Formulated herbal shampoo comprises % solid content, Surface tension, wetting time and Viscosity were found to be 22. In Newtonian fluids, the viscosity remains constant regardless of the force applied. Measure the viscosity of shampoo mixture at 25°C. Their primary function is to remove soils, such as sebum and solid particulates, from the hair, but they also are important for foaming, building product viscosity, suspending actives and the solubilization of fragrances. After a certain amount of salt has been added, the viscosity peaks and any more salt will actually reduce the viscosity rather than increase it. Mar 23, 2023 · A shampoo with a pleasant viscosity is more likely to be perceived as high-quality and enjoyable to use, which can influence consumer satisfaction and brand loyalty. Maintaining viscosity within a close range over a long period of time can some- times be a problem. Electrolytes are almost always used to build viscosity of shampoos. Viscosity is important for virtually every product within the cosmetics and personal care space. Viscosity refers to the resistance of a fluid to flow, and understanding shampoo‘s viscosity is essential for selecting the right product for your hair type and styling needs. I need more water to make it lather. Surfactants form the ‘heart’ of most shampoo formulations and perform many different roles in these systems [1–4]. Fluid Viscosity (cP) Temperature (ºC) Note Source; 1-Propanol (propyl alcohol) 1. 36. Jun 9, 2016 · Rheology is the study of the flow of materials, and the deformation of materials under force and friction. Their primary function is to remove soils, such as sebum and solid particulates, from the hair, but they also are important for foaming, building product viscosity, suspending actives and the solubilization of fra-grances. Acidity was determined by titrating diluted shampoo sample with standard NaOH solution with phenolphthalein indicator. Test Thickeners in Small Batches National Center for Biotechnology Information The viscosity of products like shampoo and conditioner need be thick enough to handle but fluid enough to be squeezed out of a bottle. Consider factors such as the target market, the shampoo’s intended purpose (e. 9. A well-formulated shampoo with the appropriate viscosity will provide the user with a better overall experience and effectiveness. Dec 23, 2022 · This review focuses on the four principal components in a commercial shampoo formulation: surfactant, deposition polymer, structuring polymer, and viscosity modifiers. A shampoo with low viscosity may be too runny, making it difficult to apply and resulting in uneven distribution. Jan 9, 2024 · shampoo viscosity. 63±0. Another obvious mechanism influencing viscosity build-up of a formulation is hydrogen bonding; a higher degree of hydrogen bonding will cause a formulation having a higher viscosity as more complex aggregates on molecular scale will result in a more rigid structure. The sodium ions from the salt lower the charge density of the micelle surface. child), typically non-Newtonian behavior is preferred. More specific study is required to determine the effectiveness of the shampoo in reducing hair and scalp irritation. Figure I is a loaded versus time graph showing the consistencies of two types of shampoo stored and tested at 21°C in a 40 mm diameter extrusion container. 945: Densities and viscosities of binary mixtures of 1-propanol and 2-propanol with acetonitrile Sep 2, 2009 · A good starting point for an economy shampoo includes 7% active alkyl sulfates/alkyl ether sulfate, about 1% cocamide DEA and enough sodium chloride to get the maximum viscosity. The viscosity of the shampoo solution depends on the size and packing structure of these micelles. are thicker) than “light / natural” products. This is particularly important in shampoos, as it ensures that the cleansing agents effectively remove dirt, oil, and other impurities from the hair Feb 2, 2025 · Viscosity refers to the thickness or resistance to flow of a liquid. Data Set #1: Sample A (Premium Shampoo) Data Set #2: Sample B (Budget Shampoo) Figure II Feb 2, 2025 · Benefits of Hydroxypropyl Methylcellulose as a Thickener in Shampoo FormulationsHydroxypropyl Methylcellulose (HPMC) is a commonly used thickener in shampoo formulations. Stability studies: The thermal stability of Download scientific diagram | Shear and extensional rheology of commercial brand cosmetic products (shampoo, conditioner and 2 in 1): (a) shear viscosity measurements for three different fluids cause viscosity building by entangling of the polymer backbone. A desirable viscosity range will vary between 500 and 1500 cps. formulated herbal shampoo was clear, light green in color, transparent, good odor and appealing. Posted by Unknown Member on January 9, 2024 at 3:20 pm I am currently working on a sulfate-free shampoo formula at pH = 4. 02sec and 15. Jun 1, 2018 · These interactions affect viscosity, foam, rheology and aesthetics of the formulation and often commercial success or failure of a formulation. 6 After shampooing, scalp becomes clean and free of the oily dirt until fresh sebum is regenerated. R 1 is surface tension of distilled water at room temperature. May 12, 2020 · In this blog post you’ll learn how to correct the viscosity of a wash or shampoo and bring it back to a gel or, conversely, make it thinner. 2). n 2 is number of drops of shampoo solution. Viscosity of shampoo is calculated by ղ 1 = Absolute viscosity of water t 1 = Time of flow of water ρ 1 = Density of water ղ 2 = Absolute viscosity of liquid t 2 = Time of flow of liquid ρ 2 = Density of liquid Viscosity of Herbal Shampoo Table 5: Formulation and Viscosity Pas SL No Formulation Viscosity Pas 01 Sample 1 1. ( Note: You can follow along with one of our expert formulators as she shows you step-by-step how to fix the viscosity of your body wash and shampoo. Bulk density of the shampoo samples were measured by using peacnometer. flrwryue jey zlz zwubzc dvqyv zfigx svno gqe twy etmq