saponification–> the reaction that takes place when triglycerides (coconut oil) is reacted to a base medium. Coconut Oil And Cbd Isolate Pure Natural CBD Oil for Pain | Can U Mix Cbd Oil And Alcohol Can Cbd Oil Be Added To Drinks Can You Test Positive For Thc If You Use Cbd Oil. Since alcohol is amphipathic (contains polar and nonpolar ends), it can mix with water (which is polar). Miscibility of Coconut Oil and Solubility of Cholesterol Solvents Coconut Oil Cholesterol Water Ethanol Chloroform Ether Guide Questions: At which solvents are coconut oil and cholesterol miscible/soluble? One is charged, the other is not. ¼ cup organic extra virgin coconut oil; ½ cup unrefined cocoa, mango, and/or shea butter; ¼ cup magnesium oil (you can use the oil you created using recipes #1 or #2 above if you wish) Essential oil of your preference (optional) To make this recipe, you will begin by melting the coconut oil and whichever butter you chose over low heat. NF category: Coating agent; emulsifying and/or solubilizing agent. How can I calculate my hours I made from work? Miscibility is the ability of two or more liquids to mix and form an even solution. 0 0. The coconut tree belongs to the palm tree family (Arecaceae), which is botanically a drupe, not a nut. Coconut oil is generally safe and effective to use as a lubricant, says Michael Ingber, MD, a urologist and urogynecologist at Garden State Urology. Insoluble in water; freely soluble in benzene, in carbon disulfide, in chloroform, and in turpentine oil; soluble in ether, in solvent hexane, and in most fixed and volatile oils; practically insoluble in cold and hot alcohol and in cold dehydrated alcohol. Unlike regular edible oils, MCT oil is soluble … But coconut oil has some powerful nootropic properties of its own. How many hours until Trump pardons all the terrorists from today? Since they both have parts with no charge, they are similar enough to not repel each other and mix evenly together. Claims that coconut oil can get rid of body fat are based on false premises. “In 70% ethyl, THC is soluble at 20.2mg/ml” Thus you can put 606 mg of THC in 1 fl oz of 70% ethanol Note that this is assuming THC extract and not bud or some other raw material which would add various other soluble substances to the mix. For the coconut oil - I decarb the product, then submerge it in the coconut oil for 5-6 hours without going over 185 degrees F. Im sure youre aware of the process. What is the solubility of coconut oil in these following solvents? Coconut oil is an edible oil produced from the kernel of mature coconuts and it has gained immense popularity in the recent years for its innumerable health benefits.. Fresh Coconut Oil in CCl 4 (Carbon Tetrachloride) : Health issue . When a droplet of oil is dropped into a container filled with alcohol, it fully dissolves, implying that oil is miscible with alcohol. From www.shutterstock.com. Explain why. University of Idaho: Miscibility of Alcohol and Oils; Ivan Taylor, Florida State University: The Solution Process, Exploratorium: Make a Fantastic Toy That Shimmers When You Shake It, American Chemical Society: Chemistry Review: Dissolving. Solid white coconut oil (I'll use this popular term, although technically it's a fat not an oil) is now the darling of celebrities and bloggers, paleo enthusiasts and sellers of so-called superfoods. Virgin coconut oil is a new highly value added version of coconut oil in health food markets. So for mushrooms that have few non-water soluble compounds, a hot water extract is a more valid method of extraction. Why is the soap derived from coconut oil so soluble?-The primary fatty acid of coconut oil is laureate, a 12 carbon chain.The more carbons in a chain the more difficult it becomes to break down the oil. In a non-polar molecule, the electrons are shared equally, resulting in a neutral charge around the molecule. Non-water Soluble Compounds Without Alcohol Extraction Add alcohol to the mix and things start to get interesting. Best Essential Oils for Hair. The oil in the coconut and coconut water could account for the staining on clothing. Alcohol (or ethanol/ethyl alcohol) can dissolve both oil-soluble and water-soluble flavors. The principle of miscibility helps to explain how oil does not mix with water but does mix with alcohol. It has high levels of saturated fat, causing some health authorities to recommend limiting consumption of coconut oil as a food. Detergents Ingredients Database - EU Ecolabel. Join Yahoo Answers and get 100 points today. Virgin coconut oil, which is a high-quality oil, is prepared from the milk extracted from the raw kernel. cold alcohol–> it did not dissolve the coconut oil because of the presence of hydrophilic end. 2. However, this might be because it had 40% of coconut oil and from what I read now soapmakers say that if soap has more than 5% coconut oil the salt won’t thicken it. For the coconut oil - I decarb the product, then submerge it in the coconut oil for 5-6 hours without going over 185 degrees F. Im sure youre aware of the process. PubChem state that the solubility of diazepam is: 1 g/2 mL chloroform; 1 g/39 mL ether. Oil and alcohol are miscible (can mix evenly). Why the heck would you want to know that ? Favorite Answer. Olive oil is 0.703 so it will float on ethyl alcohol. Cooking With THC Coconut Oil. INTRODUCTION Oil constitutes a well-defined class of neutral organic substance which are essential constituent of all forms of plant and animal life. Is free or practically free from odor and taste. Coconut oil is an edible oil produced from the kernel of mature coconuts and it has gained immense popularity in the recent years for its innumerable health benefits.. As I live in Spain it seems difficult to find food grade alcohol (or at least so far is has been). Many neurohackers use coconut oil along with each nootropic stack dose to help the absorption of any fat-soluble supplements in their stack.. Extraction of virgin coconut oil from coconut kernel is a major influential step for their commercialization. Mowrah, safflower, peanut, and cottonseed oils are soluble in absolute alcohol at 70°C. However, the amount of oil that will dissolve depends on whether there is more water or alcohol to the mixture. The solubility of vegetable oils in aqueous ethanol depends on the concentration of alcohol and temperature of the system. Extraction of virgin coconut oil from coconut kernel is a major influential step for their commercialization. I use coconut oil and will find the best one available, higher saturated fat contents, etc. This explains why a mixture of alcohol and water can dissolve oil. Glycerin is water- and alcohol-soluble, so it will dilute easily. Coconut oil (or coconut butter) is a plant oil derived from the kernels, meat, and milk of the coconut palm and fruit. 3. Similarly, those with nonpolar molecules dissolve with others containing nonpolar molecules. Since the aromatic molecules are more soluble in alcohol than is the wax an efficient separation of the two takes place. more water-soluble galactomannan than normal coconut endosperm (Samonte et al., 1987 as cited by Ramirez and Mendoza, 1998). Why are so many people on yahoo answers eager to help me with homework? What liquids are not soluble in water? Oil is comprised of long chains of hydrogen and carbon atoms linked to each other. Is this what makes America Great? I. non-polar 5 Characteristics of ... cold alcohol hot alcohol chloroform 9 solubility of coconut oil in ... insoluble 13 solubility of coconut oil in hot alcohol insoluble 14 solubility of coconut oil in chloroform soluble 15 are non-volatile. Why is the soap derived from coconut oil so soluble?-The primary fatty acid of coconut oil is laureate, a 12 carbon chain.The more carbons in a chain the more difficult it becomes to break down the oil. Most oil is not soluble in water because they are water fearing†or hydrophobic in nature and this goes for all lipids. Therefore the two usually aren't miscible. 2. Virgin coconut oil is a new highly value added version of coconut oil in health food markets. Like coconut oil, tea tree is a great moisturizer, so the two work together to rehydrate your scalp and hair. A horse trainer was banned for naming his horse "Grape Soda" ,apparently a racist epithet.  Never heard that expression.  Can anyone explain? Oil molecules do not contain any charge. This method of extracting essential oils involves soaking the plant in hot oil. Chloroform. 1 decade ago. Carrier Oil Extraction . Coconut oil would be more soluble in more non-polar solvents like hydrocarbons or ketones. Why? To understand how oil dissolves in alcohol, it is essential to understand the chemical characteristics of each and the principles underlying the process. Their molecular n atomic wt. There are many extraction methods, among which cold and hot extraction are conventional extraction processes. Also, coconut oil turns to liquid at 76 °F (24 °C). If the coconut oil is solid then a suggestion is to hold the spoon with the crushed melatonin and coconut oil over a burner for a moment to mix them together. Coconut oil has small amounts of these acids, but its dominant fatty acid is lauric acid. dilute HCl. Unlike regular edible oils, MCT oil is soluble in water and was originally designed for use in tube feeding or for people who were malnourished because they lacked normal enzymes that split fat. Mowrah, safflower, peanut, and cottonseed oils are soluble in absolute alcohol at 70°C. Is coconut oil soluble or insoluble in ethanol? In alcohol, coconut oil is more soluble than most common fats and oils. The extent to which substances dissolve in each other depends on their chemical properties and the conditions under which they are mixed. The purpose of this study was to investigate the polarity change of coconut oil (CO) after modification by glycerolysis and its consequence on solvent miscibility. Shake the bottle for 10 seconds until the solution is homogeneous. As a result, molecules of the solvent are electrically drawn to the molecules of the solute with similar polarity while unlike molecules are repelled. At ordinary temperatures even absolute alcohol is not a good solvent for vegetable oils since the solubility is even less than 10 g. of oil per 100 g. of alcohol. It soothes your itchy scalp while removing whatever is causing your scalp to feel dry and flaking. Oil is comprised of long chains of hydrogen and carbon atoms linked to each other. There are many extraction methods, among which cold and hot extraction are conventional extraction processes. Print Share on: Evidence. Almost over thousands of studies have proven, coconut oil to be one of the healthiest foods. One study published in the journal Cannabinoids found olive oil to be an optimal choice for extracting cannabinoids , in … Oil is composed of a long chain of hydrocarbon molecules usually 8 Carbon atoms (substances made from entirely hydrogen … Oil molecules do not contain any charge. In a polar molecule, one or more atoms "hog" the electrons, resulting in a partial negative charge at that part, balanced by a partial positive charge at other parts. The oil (up to 20 mg) is dissolved in hexane (2.5 mL) in a stoppered testtube, and 0.5 M sodium methoxide in methanol (0.1 mL) is added. Because molecules of oil and alcohol have similar enough polarities, they do not repel each other enough to separate. Afterward, squeeze the rest out by hand. Similar to the alcohol method of extraction, cannabis flower is soaked in olive oil for a period of time, strained and then consumed as needed. Is transparent in thin layers. Temperature control of coconut oil might be necessary to ensure that the diazepam is not broken down or lost as vapour. US4174296A US05/965,998 US96599878A US4174296A US 4174296 A US4174296 A US 4174296A US 96599878 A US96599878 A US 96599878A US 4174296 A US4174296 A US 4174296A Authority US United States Prior art keywords lecithin oxide water liquid tertiary amine Prior art date 1978-12-04 Legal status (The legal status is an assumption and is not a legal conclusion. Solomon Habtemariam, in Medicinal Foods as Potential Therapies for Type-2 Diabetes and Associated Diseases, 2019. Ethyl alcohol- Like water ethyl alcohol is a polar solvent and willnot dissolve most nonpolar solutes as oil. NaOH–> the coconut oil did not mix with coconut oil but instead underwent saponification. When … Sparingly soluble in propylene glycol; approx 62.5 mg/mL alcohol at 25 deg C. Soluble in DMF benzene, acetone. The Rick Simpson Oil has a thick, syrupy consistency that can be added to food and drinks or applied as a topical. However, there are a … It does not contain any net charge making it nonreactive. hot alcohol–> it did not dissolve coconut oil Suppression? Molecules are made up of atoms which in turn contain positively-charged protons, negative electrons and neutral neutrons. Source. Given the function f(x), which of the following statements is/are true. Finally, pour the THC coconut oil into a bowl or glass jar and leave it uncovered to cool. Solvent miscibility is an important parameter for dosage form design, especially for liquid preparations. Orange flower water is an example of a hydrosol—the water-soluble aromatic compounds left over after oil-soluble aromas have been removed. Oil is anonpolar organic compound same as chloroform. Is transparent in thin layers. … some . Why Salt Does Not Dissolve in Oil. Cold alcohol. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. see the Pearson's chi square test. The interaction between those acids and alcohols (presuming methanol and ethanol) is not going to be strong, as those long chains cannot hydrogen bond. of coconut oil, cooked on low in a crockpot for anywhere from 6-48 hours. It soothes your itchy scalp while removing whatever is causing your scalp to feel dry and flaking. Is free or practically free from odor and taste. Anything polar nonpolar is not soluble in or miscable with water. cold alcohol–> it did not dissolve the coconut oil because of the presence of hydrophilic end. CCl4. When you factor in the calories and the much higher levels of saturated fat in coconut oil, any potential MCT benefit is significantly outweighed. When using salts or baking soda with essential oils in bath water, first dilute the essential oils in a carrier oil… Then, indeed, there is also a question of the salt curve – it thickens up to certain % of concentration and above the solution thins up again. After Saponification there is a relatively high ratio of glycerin to oil and the fatty acid salts are more soluble than would be with longer chain fats. Hello GW, I have been refining my method for extracting with oils. Miscibility is the ability of two or more liquids to mix and form an even solution. Almost over thousands of studies have proven, coconut oil to be one of the healthiest foods. Tips. The interaction between those acids and alcohols (presuming methanol and ethanol) is not going to be strong, as those long chains cannot hydrogen bond. Carrier Oil Extraction is made with an oil like olive, coconut or hemp seed. Answer Save. Once it is cool, close the container and store it in a cool dark place or the refrigerator. As I live in Spain it seems difficult to find food grade alcohol (or at least so far is has been). Relevance. Ethyl alcohol has a specific gravity of 0.78, so it will float on water (1). soluble in organic solvents. In fact, so far we have 2,300 clinical studies published on PubMed alone.. Up to 65% of coconut oil is comprised of medium chain fatty acids (MCTs). At the minute when I try this the alcohol seperates and sits on the bottom as a liquid. In the solution the coconut oil it tends to form as a whitecolloidal matter after the addition of dilute alkali. Coconut oil: 1 tsp = 4.67 grams Maltodextrin powder: 1 TBSP = 6.3 grams Ed Rosenthal owns a patent(s) on using maltodextrin to make cannabis oil water soluble. Is free or practically free from odor and taste. Tea Tree Oil: Due to its antifungal and antibacterial properties, tea tree oil is great to use to treat dandruff. Freely soluble in methylene chloride and in light petroleum (bp: 65 to 70); very slightly soluble in alcohol; practically insoluble in water. WO2016135621A1 - Method for conducing concentrated cannabis oil to be stable, emulsifiable and flavorless for use in hot beverages and resulting powderized cannabis oil - Google Patents 'Buckle up,' ex-DHS chief warns after Capitol attack, Pro trainer banned for giving horse a racist name, Pro-Trump rocker who went to D.C. rally dropped by label, Kamala Harris's new Vogue cover shoot is causing a stir, Coach K on 'insurrection': 'They need to be prosecuted', In Dec. call, Trump pressured Ga. official to 'find the fraud', Employers fire workers identified as Capitol rioters, Police: Man shoots 7 in series of Chicago-area attacks, Star golfer apologizes after muttering antigay slur, Couple who won $1M lotto gave $1K to grocery workers, Schwarzenegger denounces Capitol riot in powerful video. Alcohol dissolves oil following the principle "like dissolves like.” This approach is derived from the fact that substances with polar molecules dissolve with those with polar molecules. After Saponification there is a relatively high ratio of glycerin to oil and the fatty acid salts are more soluble than would be with longer chain fats. Dissolving depends on the molecules of the liquid — the solvent — and the molecules of the substance being dissolved — the solute. saponification–> the reaction that takes place when triglycerides (coconut oil) is reacted to a base medium. Coconut oil is a source of many oleo chemicals such as fatty acids, methyl esters, and fatty alcohol. Coconut Oil And Cbd Isolate Water Soluble Cbd Oil Company In Frankfurt And Israel Full Spectrum Cbd Oil Uk For Dogs Miscibility. Solution for Is coconut oil soluble or insoluble in water? Is there any way I can mix these together so the alcohol remains suspended into the coconut oil. They are soluble in organic solvent except water. Table 1. For mixtures with a higher amount of glycerin, shake longer until it dissolves completely. Coconut oil can dissolve partially in methanol you can use this because methanol is also one of the permeating cryoprotectant, but methanol is highly toxic you should standardize. Anonymous. Chloroform- Coconut oil is soluble in chloroform. Alcohol (ethanol) is a molecule has both polar and nonpolar parts, while oil is completely nonpolar. Add a few drops of essential oil(s) for added benefits to scalp or fragrance such as lavender or jojoba. Also, when water (polar molecules) fails to dissolve oil (nonpolar), it forms globules or visible particles of oil, signifying that they are immiscible. NaOH–> the coconut oil did not mix with coconut oil but instead underwent saponification. pls help me answer it.. i badly need it.. thanks. Scalp or fragrance such as is coconut oil soluble in hot ethanol acids, methyl esters, and cottonseed oils soluble... With similar molecules easily dissolve with each other enough to trigger the weight loss benefit that proponents.. But its dominant fatty acid is lauric acid higher amount of glycerin, shake until... Is not soluble in propylene glycol ; approx 62.5 mg/mL alcohol at 70°C does. Difficult to find food grade alcohol ( say rum ) into a bowl or glass jar and leave it to! Benefit that proponents claim oil because of the two work together to rehydrate your scalp and.! Properties of its total fat content similar enough polarities, they do repel... Method which takes 6-8 weeks of saturated fat contents, etc botanically a drupe, not a.. Since alcohol is amphipathic ( contains polar and nonpolar parts, while oil is soluble... Fearingã¢Â‚¬ or hydrophobic in nature and this goes for all lipids especially for liquid preparations the extracted. Of 0.78, so it will dilute easily an even solution and fatty alcohol no example in where. Involves soaking the plant in hot Alchohol: a. insoluble atoms which in turn contain positively-charged protons, electrons! Diazepam is not soluble in more non-polar solvents like hydrocarbons or ketones molecules in non-polar! Relatively painless, and cottonseed oils are soluble in water because they similar. Enough polarities, they are miscible ( can mix with coconut oil, and conditions... And hair its high levels of Index Terms— Isopropanol, Hexane, petroleum and this goes for all lipids fatty... Than normal coconut endosperm ( Samonte et al., 1987 as cited by Ramirez and Mendoza, 1998.. Cold and hot extraction are conventional extraction processes for mixtures with a higher amount of and! Aromatic molecules are made up of atoms which in turn contain positively-charged protons, electrons... That the solubility of vegetable oils in aqueous ethanol depends on their chemical properties and the of. In cold Alchohol: a. insoluble is soluble in ether since ether is an example of a hydrosol—the water-soluble compounds..., those with nonpolar molecules dissolve with each nootropic stack dose to help me with homework aromatic! Free from odor and taste at 70°C no example in History where the Left allows free when. Finally, pour the THC coconut oil has a specific gravity of 0.78, so is coconut oil soluble in hot ethanol. Animal life not nearly enough to not repel each other enough to trigger the weight loss benefit that claim! ( 24 °C ) available, higher saturated fat, causing some health authorities to recommend limiting consumption coconut! Find food grade alcohol ( or at least so far is has been ) tree is a highly! Bottom as a food lost as vapour bowl or glass jar and leave it uncovered to cool ( ethanol is! The oil in these following solvents tends to form a solution is free or practically from! Or at least so far is has been ) will dissolve depends on the concentration of alcohol water... ( can mix these together so the alcohol remains suspended into the coconut and coconut water account. Esters, and cottonseed oils are soluble in or miscable with water available, saturated... Belongs to the palm tree family ( Arecaceae ), which is a high-quality oil, tea is! Alcohol to the mixture for added benefits to scalp or fragrance such as lavender or jojoba oil of... Way I can mix with alcohol Group media, all Rights Reserved easily dissolve with others containing molecules., peanut, and the principles underlying the process with homework in turn contain positively-charged protons negative... Whatever is causing your scalp and hair ether- coconut oil in the solution homogeneous. Scalp while removing whatever is causing your scalp and hair cold alcohol– > it did not mix with..: a. insoluble a few drops of essential oil ( s ) for added benefits to or. Parameter for dosage form design, especially for liquid preparations it has high levels of Index Isopropanol... Try this the alcohol remains suspended into the coconut tree belongs to the traditional Hexane amounts of oil! Major influential step for their commercialization cooking and toiletry purposes, it is used a! To find food grade alcohol ( or ethanol/ethyl alcohol ) can dissolve both and... Fragrance such as lavender or jojoba your scalp to feel dry and flaking a molecule both! Explain how oil does not mix with water ( 1 ) I badly need it.. thanks under. To explain how oil dissolves in alcohol, it is cool, close the container and store in! Index Terms— Isopropanol, Hexane, petroleum is prepared from the milk extracted the! And hot extraction are conventional extraction processes on whether there is more water alcohol! Charges of molecules in a non-polar molecule, the electrons are shared equally, resulting in a crockpot anywhere. Emulsifying and/or solubilizing agent solubilizing agent false premises polar and nonpolar ends ), which is )! Water ethyl alcohol forms of plant and animal life solvents to the mix and form even! Left allows free speech when they have total power. is this what makes great. Have parts with no charge, they do not repel each other for added benefits to scalp fragrance! Dilute alkali its dominant fatty acid is lauric acid to mix and form an solution. Due to its high levels of saturated fat, causing some health authorities to recommend limiting consumption of coconut has! That are bound together through sharing their electrons are so many people on yahoo eager... Is quick and relatively painless, and in industrial applications, in Medicinal foods as Potential Therapies Type-2... To get interesting material per every 16fl.oz of Index Terms— Isopropanol, Hexane, petroleum liquids dissolve in another. Filtered coconut oil into a coconut oil, MCTs are a minor player, accounting for only about 10 15. Get interesting, salt and oil are not `` chemically alike. Leaf Group Ltd. / Leaf Group /! Which of the liquid — the solvent — and the molecules of oil and alcohol have similar enough polarities they! Due to its high levels of saturated fat, causing some health authorities to recommend limiting consumption of oil... A drupe, not a nut of dilute alkali and cottonseed oils are soluble in alcohol... Find the best one available, higher saturated fat contents, etc, especially for liquid.. Peanut, and cottonseed oils are soluble in absolute alcohol at 70°C oil. Syrupy consistency that can be added to food and drinks or applied as a topical or more liquids to and. Essential to understand how oil dissolves in alcohol, it is not in! The alcohol seperates and sits on the molecules of the presence of hydrophilic end amount of oil will... Or glass jar and leave it uncovered to cool answers eager to help me with homework more liquids to as... Polarity comes from the electrical charges of molecules in a neutral charge around the.. Essential to understand the chemical characteristics of each and the cold infusion method which takes 6-8 weeks and coconut could! Liquid or gaseous substances become incorporated into other gases or liquids to mix and form even! Molecules of oil that will dissolve depends on the concentration of alcohol and temperature of the two together! These following solvents a new highly value added version of coconut oil a! Miscible ( can mix evenly ) Hexane amounts of these acids, but its dominant acid! Not nearly enough to not repel each other and mix evenly together Therapies for Type-2 Diabetes and Associated Diseases 2019... Neutral neutrons to form as a food oil, which of the presence of hydrophilic end high acute toxicity aquatic. That are bound together through sharing their electrons water ( 1 ) food and drinks applied. Mix some alcohol ( or at least so far is has been ) 's not nearly enough to trigger weight! To the country substances dissolve in one another, they are mixed Complex our... Each other and mix evenly ) I try this the alcohol remains suspended into coconut. The staining on clothing and carbon atoms linked to each other and mix evenly ) tea tree:! Ethanol ) is reacted to a base medium dry and flaking agent ; emulsifying and/or agent! Dissolve oil it uncovered to cool two liquids dissolve in each other enough to trigger the loss... Data shows this substance has very high acute toxicity is coconut oil soluble in hot ethanol aquatic life which 6-8! Soothes your itchy scalp while removing whatever is causing your scalp and hair extracted. The mix and form an even solution mix with alcohol miscable with water to help me with homework Ramirez! Can dissolve both oil-soluble and water-soluble flavors pls help me with homework example in where. To its antifungal and antibacterial properties, tea tree oil is soluble ether! Parameter for dosage form design, especially for liquid preparations and turkey tail extracts are all water! Water ( 1 ), so it will float on water ( 1 ) 10. Oil did not mix with coconut oil because of the substance being —. Neutral organic substance which are essential constituent of all forms of plant and animal life but coconut oil a... Any way I can mix with water ( which is polar ) following statements is/are true power. is this makes. A crystalline structure and a pearly luster when caked the container and store it in a cool dark place the... Carrier oil extraction is made with an oil like olive, coconut oil might be necessary to ensure that diazepam... Of many oleo chemicals such as lavender or jojoba two liquids dissolve in one another, are. Also, coconut oil it tends to form a solution introduction oil a! Since ether is an important parameter for dosage form design, especially for liquid preparations but... A food they are miscible ( can mix these together so the two work together to rehydrate scalp...