Lesson 1Calming and wall-fix actives: panthenol, niacinamide, ceramides, cholesterol, fatty acids, oat pull (Avena), and use amount guidesGo deep into calming and wall-fix actives good for sensitive, dry skin. Learn how they work and use amounts for panthenol, niacinamide, ceramides, cholesterol, fatty acids, and oat parts in simple formulas.
Panthenol for calm and wall backNiacinamide at low, okay include levelsCeramide, cholesterol, fatty acid mixesColloidal oatmeal and oat activesMix actives without too much on skinLesson 2Make rules for sensitive-dry skin: simple way, low-hurt, wall-help, water-soft balanceSet main make rules for sensitive, dry skin: simple, low-hurt, and wall help. Learn to limit actives, skip repeats, and balance water pulls with softs in a smooth daily plan.
Simple INCI lists and formula aimSkip common hurt and sense groupsWater-soft-block balanceLayer plan in simple dailyPatch test and slow startLesson 3Water pulls, blocks, and softs: glycerin, hyaluronic acid, propanediol, squalane, esters, and fatty alcohols with suggested use rangesKnow how water pulls, blocks, and softs work together to water sensitive, dry skin. Look at glycerin, hyaluronic acid, propanediol, squalane, esters, and fatty alcohols with real use ranges.
Water-hold pulls and best levelsHyaluronic acid kinds and sizesLight softs: squalane and estersFatty alcohols for build and softBalance water pull to skip tight feelLesson 4pH aim and buffer setups: safe pH ranges for skin, steady thinks, and ingredient matchLearn to aim skin-friend pH ranges and make buffer setups that guard skin and formula. Fix match with actives, wash agents, and keeps, and watch pH change over time.
Body pH range and wall effectpH needs of wash and keepsPick acids, bases, and buffersHandle pH change in steady testspH thinks for peel activesLesson 5Keep ways good for sensitive skin: okay keep families, usual levels, helpers, and no-keep risk handleLook at keep systems right for sensitive makes. Compare okay families, usual use levels, and boosts, and know risks and controls when going for no-keep says.
Rule status of main keep groupsOrganic acids and soft keep mixesPullers and water as boostsTest challenges and PET needsRisk of low keep and call backsLesson 6Smell and sense plan: no-smell vs hid smells, IFRA thinks, and EU/sense sayMake a smell and sense plan good for sensitive skin. Compare no-smell, must oils, and low-sense mixes, use IFRA limits, and handle EU sense labels and people hopes.
No-smell vs low-smell waysMust oils and sense riskUse IFRA groups and max levelsLabel listed smell sensesHide base smells without too muchLesson 7Soft wash agents and mild clean systems: non-wash/amine oxide/two-way options and amount guidesLearn to pick super mild wash systems for cleaners for sensitive, dry skin. Compare non-wash, amine oxide, and two-way options, set safe use levels, and make low-bubble, low-hurt bases.
Hurt ways of common wash agentsNon-wash for sensitive skinAmine oxides and two-way co-washMake low-bubble, creamy clean basesActive wash level and thin guidesLesson 8Ingredient pick frame: put safety, proof, and multi-actives firstBuild an ingredient pick frame that puts safety, proof, and multi-work first. Learn to read safety data, weigh live and lab support, and pick ingredients that give many goods at once.
Read safety checks and CIR viewsCheck clinic and tool dataPick multi soft-water activesSupplier papers and quality checksChoose trees for yes or no ingredientsLesson 9Formula flow and feel make: mix kinds (O/W, water-serum, gel-cream), thick changers, and feel aims for simple lineMaster flow and feel make for simple systems. Compare O/W creams, water-serums, gel-creams, pick thick changers, and tune slide, play time, and after feel for weak, easy overload skin.
Pick mix kind for skin statePoly vs natural thicksSlide, play, after feel bestLight gel-creams for drySteady checks for low-oil systemsLesson 10Skin body and sick ways: wall work, TEWL, sensitive skin starts, and dry vs no waterLook at how bad walls, TEWL, and nerve over-react make sensitive, dry skin. Learn main starts, how no water differs from dry, and what it means for pick feels, actives, and wash systems.
Top skin build and fat setupTEWL, skin water check, and water testNerve over-react and stingStarts: wash, pH, smell, alcoholsNo water vs real fat dry
