Lesson 1Superfatting and preservatives: what superfat means, typical percent ranges, and handling free oils; rancidity risks and antioxidant use (vitamin E, rosemary extract)Clarify wha superfat mean an how free oils influence mildness, lather, an shelf life. Learn typical superfat ranges, how fi choose which oils fi reserve, an how antioxidants help slow rancidity an DOS in finished bars.
Defining superfat and lye discountChoosing which oils to superfat withSuperfat levels for face, body, and shampooRecognizing and preventing DOS and rancidityUsing vitamin E and rosemary extract wiselyLesson 2Selecting oils for target skin types: formulations for sensitive, dry, normal, oily skin and trade-offsLearn how fi match oil blends to sensitive, dry, normal, an oily skin. Compare cleansing, conditioning, an hardness, an understand trade-offs between mildness, bubbly lather, longevity, an cost when designing targeted recipes.
Key fatty acids and their skin feelFormulating for sensitive or reactive skinDesigning bars for dry or mature skinBalancing recipes for normal or combo skinLow-residue bars for oily or acne-prone skinLesson 3Understanding trace and its impact on swirl techniques and batched consistencyUnderstand wha trace is, how fi recognize its stages, an why it matter fi texture an design. Learn fi control trace speed fi execute swirls, layers, an embeds while keeping batter workable an structurally sound.
Visual and textural signs of light traceMedium and thick trace and when to use themFactors that speed or slow traceTiming colorants and fragrance at traceTrace management for swirl techniquesLesson 4Fragrance choices: essential oils vs. fragrance oils, heat and alkali stability, skin-safety considerations and IFRA basicsCompare essential oils an fragrance oils fi cold process soap. Evaluate heat an alkali stability, discoloration risks, usage rates, an IFRA guidelines so yuh can design fragrant bars dat are both safe an long-lasting.
Essential oil pros, cons, and safety limitsWorking with synthetic fragrance oilsAcceleration, ricing, and discoloration risksReading IFRA documents and usage tablesBlending scents for better longevityLesson 5Basic saponification chemistry: triglycerides, fatty acids, glycerin, and how lye converts oils to soapGain a clear picture of saponification chemistry: how triglycerides an lye react fi form soap an glycerin. Learn why exact lye calculation, purity assumptions, an correct mixing order are essential fi safe, stable bars.
Structure of triglycerides and fatty acidsWhat sodium hydroxide does in solutionThe saponification reaction step by stepRole and benefits of natural glycerinWhy accurate lye calculation is criticalLesson 6Common soap-making oils and butters: properties, typical fatty acid profiles, and functional impacts (hardness, lather, conditioning)Survey de most common soap-making oils an butters an how dem fatty acid profiles affect hardness, lather, conditioning, an solubility. Learn fi combine dem into balanced, stable, an cost-effective base recipes.
Lauric and myristic acids for cleansingOleic-rich oils for conditioning and glidePalmitic and stearic acids for hardnessCastor oil and stable, creamy latherBuilding balanced base recipes from staplesLesson 7Role of liquid phase: water vs. distilled, herbal/tea infusions, milk, and impact on texture and traceExplore how different liquids behave in cold process soap, including distilled water, herbal infusions, teas, an milks. Learn how liquid type an concentration affect trace speed, texture, color, scent retention, an cure time.
Why distilled water is the default solventWater discounts and their effect on traceWorking safely with milk and sugar-rich liquidsUsing herbal and tea infusions for color and scentManaging acceleration and overheating from liquidsLesson 8Additives and functional botanicals: clays, oats, activated charcoal, exfoliants, botanical powders and their skin effectsDiscover how functional additives change de feel an performance of soap. Learn fi use clays, oats, activated charcoal, exfoliants, an botanical powders fi slip, soothing effects, detox aesthetics, an controlled scrub levels.
Using clays for slip, color, and oil anchoringColloidal oats and soothing additivesActivated charcoal for color and marketingChoosing gentle versus strong exfoliantsDispersing botanical powders to avoid clumpsLesson 9Common allergens and nut oils: identification, labeling implications, and alternatives for nut-free barsIdentify common allergenic ingredients in soap, especially nut-derived oils an butters. Learn labeling expectations, how fi reduce cross-contact risk, an how fi substitute nut-free options while preserving bar performance.
Common allergenic oils and buttersReading supplier documentation and COAsLabeling practices for potential allergensDesigning nut-free or low-risk formulasCommunicating risks to sensitive customersLesson 10Natural colorants and pigments: mica, clays, spirulina, annatto, turmeric—staining risk, heat sensitivity, and pH stabilityUnderstand how natural colorants behave in high-pH soap. Compare micas, clays, an botanicals like spirulina, annatto, an turmeric, focusing on usage rates, bleeding, staining risk, heat sensitivity, an long-term color stability.
Differences between micas and mineral pigmentsUsing cosmetic clays for color and slipGreen botanicals like spirulina and chlorellaWarm tones with annatto, turmeric, and paprikaPreventing fading, morphing, and staining issuesLesson 11Simple formulation metrics: percentages, parts by weight, batch scaling, and converting to grams for calculator useDevelop confidence wid basic formulation math. Practice using percentages an parts by weight, scaling recipes up or down, an converting between ounces an grams so yuh can use online lye calculators accurately an safely.
Using baker’s percentages for oilsConverting between weight unitsScaling a test batch to production sizeEntering data correctly in lye calculatorsChecking water and lye ratios for safety
