Lesson 1pH adjustment and chelating agents: EDTA/GLDA roles and recommended levelsExamine pH adjustment an chelating agents in hair care. Learn how acids, bases, an buffers set target pH, an how EDTA, GLDA, an alternatives bind metals, improve preservative performance, an protect hair color an stability fi better results.
Target pH ranges for key hair product typesAcids, bases and buffer systems in formulasChelation chemistry and metal ion controlEDTA, GLDA and emerging chelatorsRecommended use levels and compatibilityLesson 2Rheology modifiers, thickeners and texture agents: carbomers, xanthan gum, hydroxyethylcellulose, associative thickenersUnderstand rheology modifiers an texture agents dat control viscosity an feel. Compare carbomers, xanthan gum, cellulose derivatives, an associative thickeners, an learn how salts, pH, an surfactants influence dem behavior in yuh mixes.
Viscosity, yield stress and sensorial impactCarbomers and neutralization requirementsXanthan and cellulose gums in surfactant systemsAssociative thickeners and micelle interactionTroubleshooting instability and phase separationLesson 3Proteins, peptides and keratin derivatives: roles, molecular weight effects and compatibilityInvestigate proteins, peptides, an keratin derivatives in hair care. Learn how molecular weight, charge, an modification affect penetration, film formation, feel, an compatibility wid surfactants, conditioners, an styling polymers fi smooth hair.
Protein sources and hydrolysis processesMolecular weight and hair penetrationCationic vs anionic protein derivativesKeratin analogs and bond-mimicking claimsCompatibility with surfactants and cationicsLesson 4Conditioning agents: cationic surfactants, silicones, quaternary ammoniums, polyquaterniums — mechanisms and INCI namesExplore conditioning agents dat improve slip, softness, an manageability. Compare cationic surfactants, silicones, quats, an polyquaterniums, dem mechanisms on hair, INCI naming, buildup risk, an strategies fi lighter systems fi yuh hair.
Cationic surfactants and lamellar structuresSilicone types, volatility and depositionQuats, polyquats and charge density effectsINCI naming conventions for conditionersBalancing conditioning, buildup and rinseabilityLesson 5Surfactants: anionic, amphoteric, nonionic — selection, mildness, foaming and concentration rangesStudy surfactant classes used in hair cleansing an conditioning. Compare anionic, amphoteric, an nonionic systems, dem mildness, foaming, an conditioning effects, an learn to design blends an concentration ranges fi each format fi clean hair.
Anionic surfactants and cleansing strengthAmphoteric surfactants and mildness boostingNonionic surfactants and solubilization rolesDesigning surfactant blends for shampoosActive matter, dilution and usage rangesLesson 6Emollients and oils: esters, fatty alcohols, natural oils and butters — polarity, spreadability and compatibilityExplore emollient chemistry in hair care, comparing esters, fatty alcohols, natural oils, an butters. Learn how polarity, spreadability, an compatibility affect slip, build-up, stability, an performance in different product formats fi nourished hair.
Ester structure, polarity and sensory profileFatty alcohols for structure, slip and stabilityNatural oils, butters and fatty acid profilesPolarity, solubility and phase compatibilityChoosing emollients for product type and hair needLesson 7Functional actives and botanicals: antioxidants, UV filters, anti-dandruff actives, anti-inflammatory extracts — efficacy and evidenceAnalyze functional actives an botanicals used fi scalp an fiber benefits. Cover antioxidants, UV filters, anti-dandruff agents, an anti-inflammatory extracts, focusing on mechanisms, evidence quality, an realistic claim support fi yuh products.
Antioxidants and protection from oxidative stressUV filters for hair color and scalp defenseAnti-dandruff actives and regulatory statusBotanical extracts and anti-inflammatory claimsEvaluating evidence and building claim dossiersLesson 8Fragrance, colorants and sensitisers: common allergens, limits and safer alternativesReview fragrance, colorants, an sensitizers in hair products. Identify common allergens, labeling rules, an typical limits, an explore strategies fi safer, low-sensitizing scent an color design dat still meet consumer expectations fi nice smell.
Fragrance chemistry and allergen sourcesIFRA, labeling and allergen disclosureColorant types and regulatory categoriesSensitization mechanisms and risk factorsDesigning lower-risk scent and color systemsLesson 9Preservative systems: broad-spectrum options, typical concentrations, selection by pH and rinse-off vs leave-inLearn how preservative systems protect hair products from microbes. Compare broad-spectrum options, effective use levels, pH windows, an regulatory limits, an adapt systems fi rinse-off, leave-in, an sensitive-scalp formulations fi safety.
Microbial risks in hair formulationsCommon preservative chemistries and modespH-dependent efficacy and stabilityDesigning systems for rinse-off vs leave-inRegulatory, safety and consumer concernsLesson 10Humectants and film-formers: glycerin, propanediol, panthenol, polymers — what they do and recommended levelsUnderstand humectants an film-formers dat manage moisture an feel. Compare glycerin, propanediol, panthenol, an key polymers, dem water-binding behavior, recommended levels, an how dem influence frizz, curl retention, an buildup fi moist hair.
Water activity, humectancy and hair hydrationGlycerin, propanediol and other small humectantsPanthenol and multifunctional moisturizersFilm-forming polymers for hold and frizz controlUsage levels and climate-dependent strategies
