{"product_id":"liss-expert-professional-stem-cells-smoothing-treatment-250-ml-shoulder-length-formaldehyde-free-keratin-argan-oil-for-frizz","title":"Liss Expert Professional Stem Cells Smoothing Treatment — 250 ml (Shoulder-Length) Formaldehyde‑Free Keratin \u0026 Argan Oil for Frizz","description":"\u003cp\u003e\u003cstrong\u003eLiss Expert Stem Cells Smoothing Treatment is a professional-grade, formaldehyde-free keratin system that smooths frizz, restores shine and delivers salon-style straightness for up to 12 weeks when sealed with a flat iron.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for at-home use by people who want long-lasting smoothness without harsh chemicals, this 250 ml formula blends keratin, argan oil, collagen and plant-derived stem cell actives to hydrate, repair and improve manageability. The concentrated cream is sized to treat shoulder-length hair and follows a three-step application protocol to ensure even coverage and optimal sealing. Because the treatment relies on heat sealing, results depend on following the included instructions and using a titanium flat iron for best durability.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this treatment reduce frizz and add shine?\u003c\/h3\u003e\n\u003cp\u003eThe formula replenishes lost protein with keratin while argan oil and collagen smooth the cuticle and reflect light for visible gloss. Plant stem cell actives support follicle health and the product’s emollients deliver immediate slip and softness. When heat-sealed, the treated hair maintains a sleeker surface that resists humidity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKeratin rebuilds internal hair structure and reduces surface roughness.\u003c\/li\u003e\n  \u003cli\u003eArgan oil and collagen restore shine and tactile smoothness.\u003c\/li\u003e\n  \u003cli\u003eHeat sealing with a flat iron locks the formula into the hair fiber for long-lasting control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this safe for colored, chemically treated, or fragile hair?\u003c\/h3\u003e\n\u003cp\u003eThe system is formaldehyde-free and formulated to be compatible with color-treated and chemically processed hair, but results vary with prior treatments and hair porosity. A strand test is recommended to confirm tolerance and desired effect before treating the whole head. For fragile hair, follow timing guidance precisely and avoid overlapping previously treated sections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for colored and chemically treated hair when used according to instructions.\u003c\/li\u003e\n  \u003cli\u003ePerform a strand test to check compatibility and timing.\u003c\/li\u003e\n  \u003cli\u003eAvoid repeated overlapping on heavily damaged sections to prevent over-processing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is the application process and how long do results last?\u003c\/h3\u003e\n\u003cp\u003eApplication follows three clear steps: cleanse, apply the keratin cream, then flat-iron small sections to seal. The included guide explains timing and sectioning; consistent heat from a quality titanium flat iron is essential for durability. With correct technique, expect salon-quality smoothness that can last up to 12 weeks, depending on hair type and aftercare.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree-step protocol: shampoo, apply treatment, and seal with a flat iron.\u003c\/li\u003e\n  \u003cli\u003eTitanium flat iron recommended for even heat and reliable sealing.\u003c\/li\u003e\n  \u003cli\u003eResults last up to 12 weeks; individual longevity depends on hair porosity and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I care for my hair after treatment?\u003c\/h3\u003e\n\u003cp\u003eAfter sealing, use sulfate-free shampoos and limit salt- or chlorine-heavy exposures to extend the effect. Gentle styling and regular conditioning will help preserve smoothness and shine. Touch-up treatments can be applied as hair grows out or when frizz begins to return.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChoose sulfate-free cleansers to protect the keratin layer.\u003c\/li\u003e\n  \u003cli\u003eMinimize frequent high-heat styling to reduce cumulative stress.\u003c\/li\u003e\n  \u003cli\u003eSchedule touch-ups as needed based on regrowth and texture changes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: Liss Expert Stem Cells Smoothing Treatment is aimed at people with wavy, curly, frizzy or chemically treated hair who want a salon-grade straighten-and-smooth solution at home without formaldehyde. It suits shoulder-length to longer hair (250 ml recommended for shoulder length) and is best for users comfortable following step-by-step heat-seal instructions and owning or renting a quality titanium flat iron. If you’re seeking reduced styling time, improved manageability and enhanced shine with professional results, this treatment provides a concentrated, conscious-care option that prioritizes smoothness and hair feel.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eCollagen\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do results last after using Liss Expert?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: With proper sealing using a titanium flat iron and correct aftercare, results can last up to 12 weeks, varying by hair type and maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the treatment safe for color-treated hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the formula is formaldehyde-free and generally safe for color-treated hair, but perform a strand test before full application.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Liss Expert Professional","offers":[{"title":"Default Title","offer_id":67556513939626,"sku":"B0DCQ9B464","price":136.37,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/8989\/6874\/files\/liss-expert-front-packaging_bdfc78a3-073c-4768-ad03-9691a31273c5.jpg?v=1790937379","url":"https:\/\/opulora.ca\/products\/liss-expert-professional-stem-cells-smoothing-treatment-250-ml-shoulder-length-formaldehyde-free-keratin-argan-oil-for-frizz","provider":"OPULORA","version":"1.0","type":"link"}