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 head skin ease in harmed hair care. You will look at panthenol, niacinamide, bisabolol, and their hit on block work, red, itch, and feel sense.
Head block and swell basicsPanthenol for wet and calmNiacinamide for block and redBisabolol and plant anti-botherFeel tests and buyer senseMix bounds and match workLesson 2Lipids, ceramides and fatty alcohols: replenishing the lipid mantle, repairing cuticle gaps, improving barrier functionThis part checks lipids, ceramides, and fat alcohols that build up hair fat block. You will learn how they fill outer gaps, cut soak, boost smooth, and aid long-run stand to pull and chem stress.
Hair fat layer mix overviewCeramides and outer gap fillCholesterol and 18-MEA bring backFat alcohols as shape softenersSoak 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 will learn how size, charge, and break degree hit enter, film make, strength, and balance stiff with soft.
Protein harm marks in strandsBroken proteins and weight sizeKeratin-bit peptides and aimFree amino bits and wet keepFilm make, strength, and break easyAllergy, tags, and plant swapsLesson 4Oils and esters: vegetable vs synthetic esters, penetration vs surface lubricationThis part looks into oils and esters that lube, guard, and sometimes enter hair. You will match plant oils and made esters, get fat acid lists, enter deep, and how they hit frizz, shine, and breaks.
Outer lube and rub cutEnter vs top oilsPlant oils and fat acid listsMade esters and feel tuneBlock, shine, and frizz holdGo bad, burn, and mix steadyLesson 5Surfactants and mild cleansing systems: sulfate vs sulfate-free (anionic, amphoteric, nonionic) and impact on damaged hairThis part breaks down clean agent setups for washing harmed hair with least extra hurt. You will match sulfates and no-sulfate mixes, check acid, two-way, and no-charge roles, and plan milder but good setups.
Clean agent kinds and bubble makeSulfate clean agents and harm chanceTwo-way and no-charge mild boostersClumps and soft during washBubble good vs gentle matchHead 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 make guard, smooth layers on hair. You will match quick-gone and stay silicones, PVP/VA and plastics, and learn how films hit shine, frizz, heat guard, and build-up.
Quick vs stay siliconesDimethicone kinds and thick pickAmino-work silicones and placePVP/VA and plastic film traitsHeat, sun, and pull guard rolesHandle build and no-silicone saysLesson 7Humectants and moisturizers: glycerin, propylene glycol, hyaluronic acid — water retention vs hygral fatigueHere we check wet keepers and moist makers that handle hair water hold. You will match glycerin, glycols, and hyaluronic acid, get water tie vs wet tire, and learn how weather and soak guide wet levels.
Water in strand buildGlycerin and old poly wet keepersPropylene glycol and kin glycolsHyaluronic acid weight and film wayWet tire and swell holdWeather, soak, and use guidesLesson 8Preservatives, chelators, pH adjusters and antioxidants: ensuring stability and preventing further oxidative damageThis part details aid bits that guard mixes and hair from break down. You will learn how keep agents, metal grabbers, acid tuners, and anti-burn keep germ safe, steady, and cut more burn harm.
Germ risks in harmed hair goodsKeep setups and rule boundsMetal grabbers, hard water, and metal-led harmAcid tuners and outer healthAnti-burn vs burn stressSteady tests and pack picksLesson 9Cationic conditioners and polymers: quaternized cellulose, polyquaterniums — adsorption, deposition, and slipHere we look at positive softeners and chain makers that stick to harmed hair. You will study charge thick, stick power, build, and how quats and polyquats hit comb ease, slide, full, and long hair feel.
Positive charge and harmed hair stickQuat cellulose build and workMain polyquats and do listsStick, place, and rinse waySlide, comb, and feel checkBuild hold and clear plansLesson 10Bond-rebuilding chemistries: bis-aminopropyl diglycol dimaleate, polyfunctional crosslinkers and how they restore disulfide/peptide interactionsThis part explains link-fix chems that aim broke disulfide and peptide ties. You will learn main bits, their react paths, real fix bounds, and how to mix them without shaking other actives.
Hair harm and disulfide breakBis-aminopropyl diglycol dimaleate wayMulti-work linkers and net thickPeptide back ties and boundsMix match and steadySafe, bother, and sell says
