{"product_id":"cystein-amino-acid-hair-treatment-for-salon-smooth-straight-hair-formaldehyde-free-smell-free-for-women-men-900-ml-sx4","title":"Cystein \u0026 Amino Acid Hair Treatment For Salon Smooth Straight Hair | Formaldehyde Free | Smell Free For Women \u0026 Men 900 ml (Sx4)","description":"\u003ch2\u003eBeauty Tree Professional Cysteine Hair Treatment Mono Kit – 900 ml (Sx4)\u003c\/h2\u003e\n\u003cp\u003eBeauty Tree Professional Cysteine Hair Treatment Mono Kit for Damage Repair is a revolutionary hair treatment designed for smooth, straight hair without the harmful effects of formaldehyde. This professional-grade treatment is enriched with essential amino acids, Acai oil, and Marula oil to restore hair's strength, shine, and manageability. Ideal for both women and men, this product is a must-have for salon-quality results at home.\u003c\/p\u003e\n\u003cp\u003eFormulated to repair damaged hair, it eliminates frizz, dryness, and stubborn unruliness. It works by infusing your hair with cysteine, a naturally occurring amino acid that strengthens, straightens, and adds gloss to your locks. The formula is formaldehyde-free and smell-free, making it safe for all hair types, including chemically treated hair.\u003c\/p\u003e\n\u003cp\u003eWhether you have unruly curls or straight hair in need of repair, Cysteine Hair Treatment will transform your hair, leaving it soft, sleek, and healthier looking. Its easy application method ensures long-lasting results and smoother hair with minimal upkeep.\u003c\/p\u003e\n\u003ch3\u003eWhy Cysteine Beats Conventional Straightening\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCysteine is a naturally occurring amino acid\u003c\/strong\u003e, not a harsh aldehyde. Instead of coating the hair surface, it works on the hair's internal structure to realign and reinforce bonds — straightening, strengthening and adding gloss in a single professional service. Because the formula is \u003cstrong\u003eformaldehyde-free and smell-free\u003c\/strong\u003e, you get salon-smooth results without the pungent fumes, eye irritation or long-term damage risk associated with traditional smoothening and rebonding systems.\u003c\/p\u003e\n\u003ch3\u003eKey Ingredients \u0026amp; What They Do\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCysteine:\u003c\/strong\u003e Strengthens, straightens and adds lasting gloss to the hair fibre.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEssential Amino Acids:\u003c\/strong\u003e Help repair damage and rebuild the hair's natural resilience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcai Oil:\u003c\/strong\u003e Antioxidant-rich nourishment that supports softness and shine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarula Oil:\u003c\/strong\u003e Lightweight conditioning that tames frizz and improves manageability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFormaldehyde-free for safe, natural hair straightening\u003c\/li\u003e\n\u003cli\u003eAcai \u0026amp; Marula oil for added nourishment and shine\u003c\/li\u003e\n\u003cli\u003eSuitable for all hair types, including damaged or chemically treated hair\u003c\/li\u003e\n\u003cli\u003eSmooths, straightens, and strengthens hair while reducing frizz\u003c\/li\u003e\n\u003cli\u003eProvides long-lasting results with less maintenance\u003c\/li\u003e\n\u003cli\u003e900 ml professional mono kit (Sx4) — unisex, for women and men\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Should Use This Treatment\u003c\/h3\u003e\n\u003cp\u003eThis kit is ideal for anyone dealing with \u003cstrong\u003eunruly curls, frizzy hair, dryness or chemically damaged hair\u003c\/strong\u003e, as well as straight hair that has lost its smoothness and shine. It is equally suitable for women and men, and for hair that has previously been coloured, chemically treated or exposed to heat styling. If you want salon-quality smoothness without committing to a salon appointment or a formaldehyde-based service, this is the treatment to choose.\u003c\/p\u003e\n\u003ch3\u003eResults, Longevity \u0026amp; Maintenance\u003c\/h3\u003e\n\u003cp\u003eOnce the treatment is completed, hair feels noticeably \u003cstrong\u003esofter, sleeker and healthier looking\u003c\/strong\u003e, with frizz and dryness dramatically reduced. Because cysteine reinforces the hair rather than merely coating it, results last long and require minimal upkeep. To extend the effect, always wash with a \u003cstrong\u003esulfate-free and salt-free shampoo and conditioner\u003c\/strong\u003e, avoid harsh clarifying products between services, and minimise excessive heat styling. With a 900 ml professional mono kit, you get multiple applications of salon-grade treatment at home — for both women and men.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy the 900 ml Mono Kit\u003c\/h3\u003e\n\u003cp\u003eThe 900 ml (Sx4) format is the same professional volume used in salons, giving you better value per application and consistent, repeatable results. It is an ideal choice for families, for frequent users, and for anyone who wants a formaldehyde-free straightening alternative they can trust in India, with pricing in INR and easy reordering.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFormaldehyde-free and smell-free straightening that is safe for all hair types, including chemically treated hair\u003c\/li\u003e\n\u003cli\u003eCysteine and essential amino acids strengthen hair from within while straightening and adding glossy shine\u003c\/li\u003e\n\u003cli\u003eAcai oil and Marula oil deliver deep nourishment, softness and long-lasting manageability\u003c\/li\u003e\n\u003cli\u003eControls frizz, dryness and stubborn unruliness for a smooth, sleek finish\u003c\/li\u003e\n\u003cli\u003eSalon-quality professional results at home with an easy, low-maintenance application routine\u003c\/li\u003e\n\u003cli\u003eLong-lasting smoothness that reduces daily styling time and upkeep for both women and men\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003eTechnical Specifications\u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFormulation: Formaldehyde-free and smell-free professional cysteine straightening system\u003c\/li\u003e\n\u003cli\u003eActive Ingredients: Cysteine, essential amino acids, Acai oil, Marula oil\u003c\/li\u003e\n\u003cli\u003ePack Size: 900 ml (Sx4 configuration) professional mono kit\u003c\/li\u003e\n\u003cli\u003eProcessing Time: 25-35 minutes for chemically treated hair; 35-45 minutes for normal hair\u003c\/li\u003e\n\u003cli\u003eHeat Setting: Blow-dry followed by section-by-section flat ironing at 180°C to 210°C\u003c\/li\u003e\n\u003cli\u003eAftercare: Wash after 24 hours with sulfate-free and salt-free shampoo and conditioner\u003c\/li\u003e\n\u003cli\u003eHair Compatibility: All hair types, including damaged, frizzy and chemically treated hair; suitable for women and men\u003c\/li\u003e\n\u003cli\u003eTarget Market: India, priced in INR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eWash hair with Beauty Tree Hair Clarifying Shampoo and blow-dry to 70-100% dryness.\u003c\/li\u003e\n\u003cli\u003eApply the Cysteine treatment evenly, avoiding the scalp.\u003c\/li\u003e\n\u003cli\u003eLet the treatment sit for 25-35 minutes for chemically treated hair or 35-45 minutes for normal hair.\u003c\/li\u003e\n\u003cli\u003eDry with a blow-dryer and flat iron section by section at a temperature of 180°C to 210°C.\u003c\/li\u003e\n\u003cli\u003eWash after 24 hours with Beauty Tree Ultra Smooth Keratin Plus Shampoo \u0026amp; Conditioner (sulfate and salt-free).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eBrand Trust \u0026amp; Quality Guarantee\u003c\/h3\u003e\n\u003cblockquote\u003e\n\u003cp\u003eBEAUTY TREE is a professional hair care brand supplying salon-grade formulations to stylists and at-home users in India, with products built on documented, formaldehyde-free chemistry rather than legacy aldehyde straightening systems. The Professional Cysteine Hair Treatment Mono Kit is developed with a cysteine and essential amino acid base, reinforced by Acai oil and Marula oil, and is supported by transparent application protocols — defined processing windows of 25-35 minutes for chemically treated hair and 35-45 minutes for normal hair, and a specified flat iron range of 180°C to 210°C — so results are repeatable and practitioner-verifiable. Because the formulation excludes formaldehyde and is odour-free, it aligns with safer salon practice and is suitable for sensitive clients and chemically treated hair, giving professional stylists and consumers a trustworthy, evidence-led alternative to conventional smoothening treatments.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003eComparison Matrix\u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif; border: 1px solid #e2e8f0; border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background-color: #f8fafc; color: #1e293b; font-weight: bold; padding: 12px 16px; border-bottom: 2px solid #e2e8f0; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"background-color: #ecfdf5; color: #065f46; font-weight: bold; padding: 12px 16px; border-bottom: 2px solid #e2e8f0; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; text-align: left;\"\u003eThis Product (Beauty Tree Cysteine Hair Treatment 900 ml)\u003c\/th\u003e\n\u003cth style=\"background-color: #f8fafc; color: #1e293b; font-weight: bold; padding: 12px 16px; border-bottom: 2px solid #e2e8f0; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; text-align: left;\"\u003eAlternatives\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eStraightening Agent\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eCysteine plus essential amino acids (bond-friendly, semi-permanent)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eFormaldehyde, aldehyde or glyoxylic acid-based straighteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eFormaldehyde Content\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eZero – formaldehyde-free formula\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eFrequently contains formaldehyde or releases fumes when flat-ironed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eOdour\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eSmell-free, low-fume application experience\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eStrong pungent chemical odour, eye and throat irritation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eNourishment Actives\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eAcai oil plus Marula oil plus essential amino acids\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eMinimal conditioning or oil-based actives\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eSuitable Hair Types\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eAll hair types, including damaged and chemically treated hair\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eUsually restricted by hair type or prior chemical history\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eWhere It Is Done\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eSalon-quality results at home\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eRequires a paid salon appointment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eIndicative Cost in India\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eOne-time kit cost in INR covering multiple professional applications\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003e₹3,000 – ₹8,000+ per salon session\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eResults \u0026amp; Upkeep\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #047857; font-weight: 600; background-color: #f0fdf4; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eLong-lasting smoothness with minimal maintenance\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569; font-size: 13px; line-height: 1.5; text-align: left;\"\u003eVariable results; frequent touch-ups required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003e\u003cspan\u003eIs Beauty Tree Cysteine Hair Treatment formaldehyde free?\u003c\/span\u003e \u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003eYes. Beauty Tree Professional Cysteine Hair Treatment is completely formaldehyde-free and smell-free, so it straightens and smooths hair without the harsh fumes or irritation associated with traditional formaldehyde-based straightening treatments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003e\u003cspan\u003eCan I use the Cysteine Hair Treatment at home instead of a salon?\u003c\/span\u003e \u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003eYes. This 900 ml professional-grade mono kit is designed to deliver salon-quality smooth, straight hair at home. Follow the step-by-step method — clarifying shampoo, even application avoiding the scalp, 25-45 minutes processing, blow-dry and flat iron at 180°C to 210°C, then wash after 24 hours with a sulfate and salt-free shampoo.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003e\u003cspan\u003eIs it safe for chemically treated, coloured or damaged hair?\u003c\/span\u003e \u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003eYes. The cysteine and amino acid formula is suitable for all hair types, including damaged and chemically treated hair. Cysteine is a naturally occurring amino acid that strengthens and straightens hair while Acai oil and Marula oil restore nourishment, shine and manageability.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003e\u003cspan\u003eHow long do the results of Cysteine Hair Treatment last?\u003c\/span\u003e \u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003eResults are long-lasting with minimal upkeep. Because cysteine works by reinforcing the hair's internal structure rather than coating it, smoothness and reduced frizz typically hold for several weeks when you maintain hair with a sulfate-free and salt-free shampoo and conditioner.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003e\u003cspan\u003eCan men use this cysteine hair treatment too?\u003c\/span\u003e \u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003eYes. Beauty Tree Cysteine Hair Treatment is formulated for both women and men, and works on unruly curls, frizzy hair and straight hair that needs repair, leaving it soft, sleek and healthier looking.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #e2e8f0; padding: 10px; border-radius: 6px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; outline: none; list-style-type: none; display: flex; justify-content: space-between; align-items: center;\"\u003eVerified References\u003cspan style=\"font-size: 16px; font-weight: normal; color: #4b5563;\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cp style=\"margin-top: 8px; margin-bottom: 0; color: #4b5563; line-height: 1.5;\"\u003e\u003csmall\u003eThe formula is formaldehyde-free and smell-free, making it safe for all hair types including chemically treated hair [Source: Manufacturer Product Description] | The treatment is enriched with essential amino acids along with Acai oil and Marula oil to restore strength, shine and manageability [Source: Manufacturer Ingredient Claims] | Recommended processing time is 25-35 minutes for chemically treated hair and 35-45 minutes for normal hair, followed by flat ironing at 180°C to 210°C [Source: Brand Application Instructions] | Hair should be washed 24 hours after application using a sulfate-free and salt-free shampoo and conditioner for best results [Source: Brand Aftercare Protocol] | Pack size is 900 ml in an Sx4 configuration, supplied for the India market with pricing in INR [Source: Brand Packaging Specs]\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/details\u003e","brand":"BEAUTY TREE","offers":[{"title":"Default Title","offer_id":47186574246060,"sku":"BTP-CAAHTK-900ML(SX4)","price":6298.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9632\/0172\/files\/BTP-CAAHTK-900ML_SX4_19358047-ea25-4fff-9dfd-ccdb48696c9b.jpg?v=1789122003","url":"https:\/\/buybeautytree.com\/products\/cystein-amino-acid-hair-treatment-for-salon-smooth-straight-hair-formaldehyde-free-smell-free-for-women-men-900-ml-sx4","provider":"BEAUTY TREE","version":"1.0","type":"link"}