Lesson 1Soothing and anti-inflammatory actives: panthenol, niacinamide, bisabolol for scalp tolerance and sensory benefitsHere we talk about calming and anti-swell actives that help scalp ease in damaged hair care. You'll study panthenol, niacinamide, bisabolol, and their effect on shield work, red, itch, and full feel sense.
Scalp shield and swell basicsPanthenol for wet and calmNiacinamide for shield and red cutBisabolol and plant anti-bugFeel tests and buyer senseMix limits and matchLesson 2Lipids, ceramides and fatty alcohols: replenishing the lipid mantle, repairing cuticle gaps, improving barrier functionThis part checks lipids, ceramides, and fat alcohols that boost the hair fat shield. You'll learn how they fill cuticle holes, cut soak, smooth, and back long-run stand against pull and chem stress.
Hair fat layer mix overviewCeramides and cuticle hole fillCholesterol and 18-MEA bring backFat alcohols as shape softsSoak cut and strength winsTeam with proteins and softenersLesson 3Proteins and peptides: hydrolyzed proteins, amino acids, keratin-derived peptides and mechanism of temporary repairThis part spots on proteins, peptides, and amino bits for short fix. You'll learn how size, charge, and break degree hit enter, film make, strength, and balance stiff with soft.
Protein harm marks in hair strandsBroken proteins and weight sizeKeratin from peptides and aimFree amino bits and wetFilm make, strength, and break easyAllergy, tags, and plant swapsLesson 4Oils and esters: vegetable vs synthetic esters, penetration vs surface lubricationThis part digs into oils and esters that lube, guard, and sometimes enter hair. You'll match plant oils and made esters, get fat acid setups, enter deep, and how they hit frizz, shine, and snap.
Cuticle lube and rub cutEnter vs top oilsPlant oils and fat acid setupsMade esters and feel tuneBlock, shine, and frizz holdGo bad, oxidise, and mix steadyLesson 5Surfactants and mild cleansing systems: sulfate vs sulfate-free (anionic, amphoteric, nonionic) and impact on damaged hairThis part breaks surfactant setups for clean damaged hair with least extra harm. You'll match sulfates and no-sulfate mixes, check anionic, ampho, and nonionic jobs, and plan milder but strong setups.
Surfactant kinds and bubble makeSulfate surfactants and harm chanceAmpho and nonionic mild boostersCoacervates and soft during washBubble good vs gentle balanceScalp stand and rinse bestLesson 6Silicones and film-formers: volatile vs non-volatile silicones, PVP/VA, dimethicone — shine, smoothness, and protectionThis part covers silicones and film makers that build guard, smooth layers on hair. You'll match quick and steady silicones, PVP/VA and acrylics, and learn film effects on shine, frizz, heat guard, and build.
Quick vs steady siliconesDimethicone grades and thick pickAmino silicones and placePVP/VA and acrylic film traitsHeat, UV, and pull guard jobsHandle build and no-silicone saysLesson 7Humectants and moisturizers: glycerin, propylene glycol, hyaluronic acid — water retention vs hygral fatigueHere we check humectants and wetters that handle hair water hold. You'll match glycerin, glycols, and hyaluronic acid, get water tie vs wet tired, and learn how weather and soak guide humectant amounts.
Water in hair strand buildGlycerin and old polyol wettersPropylene glycol and kin glycolsHyaluronic acid weight and film actWet tired and swell holdWeather, soak, and use guidesLesson 8Preservatives, chelators, pH adjusters and antioxidants: ensuring stability and preventing further oxidative damageThis part details back ingredients that guard mixes and hair from break. You'll learn how keeps, chelators, pH tuners, and anti-ox keep germ safe, steady, and cut more oxid harm.
Germ risks in damaged hair goodsKeep setups and rule limitsChelators, hard water, and metal-led harmpH tuners and cuticle wholeAnti-ox vs oxid stressSteady tests and pack picksLesson 9Cationic conditioners and polymers: quaternized cellulose, polyquaterniums — adsorption, deposition, and slipHere we dig cationic softeners and polymers that stick to damaged hair. You'll study charge thick, stick power, build, and how quats and polyquats hit comb ease, slip, full, and long hair feel.
Cationic charge and damaged hair stickQuat cellulose build and jobMain polyquats and work setupsStick, place, and rinse actSlip, comb ease, and feel checkBuild hold and clear waysLesson 10Bond-rebuilding chemistries: bis-aminopropyl diglycol dimaleate, polyfunctional crosslinkers and how they restore disulfide/peptide interactionsThis part explains bond-fix chemistries that aim broken disulfide and peptide ties. You'll learn key bits, reaction paths, real fix limits, and how to mix without shaking other actives.
Hair harm and disulfide breakBis-aminopropyl diglycol dimaleate wayMulti crosslinkers and net thickPeptide back ties and limitsMix match and steadySafe, bug, and sell says
