Lesson 1Preservatives and antioxidant strategies in natural formulations: phenoxyethanol alternatives, vitamin E, rosemary extract, pH and microbial controlThis part covers natural ways to keep things fresh and fight spoilage, like wide protection, helpers, and acid balance. You will learn to slow bad changes, stop dirt, and make safer, longer good products.
Microbial risks in water-based cosmeticsNatural and nature-identical preservative optionsChelators, pH adjustment, and hurdle technologyVitamin E, rosemary, and other antioxidantsChallenge testing and preservative efficacyLesson 2Humectants, film formers, and humectant alternatives: glycerin, hyaluronic acid, honey, aloe veraThis part checks water-pullers, cover makers, and other water helpers, showing how they hold water, help skin shield, and change feel. You will compare glycerin, aloe, honey, and water acid in different weathers.
Mechanism of humectants in the stratum corneumGlycerin, sorbitol, and sugar-based humectantsHyaluronic acid weights and skin feelAloe, honey, and plant mucilage extractsBalancing humectants with occlusives and oilsLesson 3Essential oils and botanical actives: efficacy, dilution limits, sensitization risk, safe choices for faceHere we look at strong oils and plant powers, focusing on proof they work, skin limits, and touch risks. You will learn safe mixing, test patches, and good picks for soft face skin.
Evidence-based benefits of key essential oilsDermal limits and maximum facial dilutionsPhototoxicity, irritation, and sensitization risksSafer essential oils for facial formulationsUsing CO2 and standardized plant extractsLesson 4Butters, waxes, and emulsifiers used in natural formulas and their rolesHere we look at soft butters, hard waxes, and mixers in natural mixes, focusing on feel, melt way, and strong hold. You will learn to pick setups that help skin touch, spread easy, and keep product good.
Shea, cocoa, and mango butters in skincarePlant waxes versus beeswax in formulationsHLB basics for choosing emulsifier systemsNatural emulsifiers and co-emulsifiersDesigning balms, butters, and rich creamsLesson 5Ingredient sourcing, certification terms, and reading INCI labelsThis part explains getting ingredients, seals of good, and name lists. You will learn to read organic and natural marks, check seller papers, and look at labels sharp for clear and safe info.
Organic, natural, and wildcrafted sourcingKey cosmetic certifications and what they meanSupplier documentation and quality checksReading and ordering INCI ingredient listsSpotting greenwashing on product labelsLesson 6Clays, powders, and botanical exfoliants: kaolin, bentonite, oat flour, rice powder, enzymatic botanicals (papaya, pumpkin)This part checks earth clays, plant dusts, and soft scrubbers from plants, comparing bits size, soak power, and bother chance. You will learn to make soft but strong scrubs and covers for varied skin kinds.
Kaolin, bentonite, and other cosmetic claysOat, rice, and grain flours for gentle polishingFruit enzymes from papaya, pineapple, and pumpkinChoosing exfoliant type by skin conditionSafe usage levels and over-exfoliation risksLesson 7Hydrosols, floral waters, and aqueous extracts: properties and uses (chamomile, rose, lavender)You will study plant waters, flower juices, and wet plant pulls, comparing make-up, hold strong, and skin goods. The part explains getting them, germ risks, and how to pick and mix in soft mixes.
How hydrosols differ from essential oilsKey properties of rose, chamomile, lavenderPreservation needs of hydrosols and tonersUsing hydrosols in mists, masks, and creamsSelecting extracts for specific skin concernsLesson 8Plant oils and lipids: fatty acid profiles, comedogenicity, carrier oil selection (jojoba, squalane, rosehip, sweet almond)You will check plant oils and fats, focusing on fat kinds, spoil easy, and block pores. The part guides picking carry oils for skin types, like jojoba, fake squalane, rosehip, and sweet nut oil.
Fatty acid profiles and skin compatibilityOxidative stability and shelf life of oilsComedogenicity scales and acne-prone skinProfiling jojoba, squalane, and rosehip oilsBlending carrier oils for targeted concerns
