{"product_id":"hydrating-gel-serum-workbook","title":"Hydrating Gel Serum Making Workbook | Intermediate Digital PDF","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLearn to make a hydrating gel serum and understand how small formula changes affect its texture.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eMake Your Own Hydrating Gel Serum\u003c\/span\u003e\u003c\/em\u003e\u003cspan\u003e is an intermediate-level digital workbook from Island Goddess Body Essentials. Clear ingredient explanations, exact weights, numbered methods and reusable records help you plan, make and document your formulation practice batches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStart with the Fluid Foundation formula, then explore the Structured Refined version. Both make 200 g water-based, fragrance-free gel-serum development batches. Xanthan gum increases from 0.30% to 0.50%, with water adjusted accordingly, so you can investigate gel structure while keeping the humectants and preservative constant. Neither version has established performance results.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInside your 16-page workbook\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTwo complete formulas with phases, common ingredient names, INCI names, percentages and gram weights.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIngredient explanations and guidance on suitable buying grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEssential equipment, preparation instructions and a scaling example.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNumbered cold-process methods covering gum dispersion, hydration, mixing, pH measurement and filling.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA formula comparison, troubleshooting tips, customization boundaries, and use and storage guidance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOne completed product development brief.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFour reusable forms: a development brief, formula sheet, batch record and product follow-up sheet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLinked supplier references and supporting sources.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWho it’s for\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdult skincare makers with some formulation experience who want to understand water-based gels. You should be comfortable with accurate small-quantity weighing, basic hygiene, polymer dispersion and calibrated pH measurement. The practical goal is to compare gel structure and keep useful development records.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTools for your hydrating gel serum practice batches\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCheck what you already own before purchasing equipment. Choose items that meet the workbook’s specifications; a product being sold on Amazon does not establish its suitability for cosmetic making.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAffiliate disclosure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The shopping links below are affiliate links. As an Amazon Associate I earn from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEssential equipment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDigital scale:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Choose 0.01 g readability and at least 500 g capacity, allowing for the vessel and planned batch. Confirm the scale’s accuracy and minimum reliable weighing amount.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop digital scales:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/A0dLx0yeG\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eScale check weights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for checking your chosen balance according to its manufacturer’s instructions.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop scale check weights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B093FPyuR\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBorosilicate beakers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Two beakers, approximately 400–600 mL and 50–100 mL, for the main batch and smaller additions.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop borosilicate beakers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B03R8egLd\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOverhead propeller stirrer and stand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A small propeller and stable stand suited to 200 g batches. Check that the mixing head fits your vessel and can operate without whipping excessive air into the gel.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop overhead propeller stirrers and stands:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B02WhUwDP\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpatulas:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clean, ingredient-compatible spatulas that reach the vessel’s base and sides for mixing and scraping.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop spatulas:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0gf6SUtw\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSmall weighing cups or dishes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e For weighing separate additions and preparing the glycerin-and-gum slurry. Choose compatible materials and enough headroom for mixing.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop small weighing cups:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0eyfvZLK\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSample or pH test cups:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clean cups large enough to allow the electrode’s required immersion. Do not return tested samples to the batch.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop sample cups:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0eyfvZLK\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDisposable transfer pipettes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e For transferring small liquid additions. Record additions by weight rather than assuming a standard drop size.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop transfer pipettes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B04N9YAQx\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProbe thermometer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Covers 15–50°C, ideally with accuracy around ±1°C, for checking processing and pH-measurement temperatures.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop probe thermometers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B00WxbaLE\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCalibratable pH meter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Choose 0.01 pH resolution and an electrode suitable for direct measurement in gels. Confirm the electrode’s required immersion depth and sample volume.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop pH meters:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0j0aqrv2\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003epH 4.00 calibration buffer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fresh buffer compatible with your meter’s calibration procedure.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop pH 4.00 calibration buffer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0jhMaULa\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003epH 7.00 calibration buffer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fresh buffer for the second calibration point. Check that the selected product includes the required buffer value.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop pH 7.00 calibration buffer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0jhMaULa\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003epH electrode storage solution:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use the solution specified by your electrode manufacturer and follow its storage instructions.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop electrode storage solution:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B072KHyyb\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety goggles:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Choose eye protection suited to the splash and material hazards identified in the ingredients’ safety data sheets.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop safety goggles:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B02hRrgxO\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProtective gloves:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select glove material appropriate for the ingredients and cleaning products you handle.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop protective gloves:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B0eC8o3F9\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePump bottles:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clean, dry packaging compatible with the serum. Test dispensing, stringing, closure performance and packaging compatibility with the actual prototype.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop pump bottles:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B08euWeUE\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEssential recording supplies\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLabels and label printer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep samples clearly identified with the formula version, batch ID, date and development status. A label printer is a convenience; use an existing suitable labelling method if you already have one.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop label printers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/A01vDcieP\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOptional extras\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eViscometer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helpful for numerical viscosity comparisons when spindle, speed, temperature and measurement conditions are documented. It is optional for the workbook’s basic observational comparisons.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eShop viscometers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/link.amazon\/B00fVUD9v\"\u003e\u003cspan\u003eView on Amazon\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(paid link)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat you receive\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA 16-page printable PDF workbook. This is a digital download. No physical workbook, finished cosmetic product, ingredients or equipment is included. Tools linked above are purchased separately.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant formula information\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBoth formulas are labelled \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e“Proposed and untested.”\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e They are educational development starting points. No completed batch trials, measured hydration results, stability results, preservation challenge tests or established shelf life are supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAppropriate testing, packaging assessment and safety review are needed before sale or broad distribution. Appearance, smell and a home patch test cannot establish microbial safety.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGet the workbook and plan your first hydrating gel serum practice batch.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Island Goddess Body Essentials","offers":[{"title":"Default Title","offer_id":67737099272237,"sku":null,"price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6383\/2365\/files\/DigitalFormulaWorkbookPreview.png?v=1793135562","url":"https:\/\/islandgoddessessentials.com\/products\/hydrating-gel-serum-workbook","provider":"Island Goddess Body Essentials","version":"1.0","type":"link"}