{"product_id":"natural-sant-onion-keratin-duobox-120ml-2-step-smoothing-treatment-for-dry-damaged-hair-frizz-control-heat-protection","title":"Natural sant Onion Keratin DuoBox 120ml — 2-Step Smoothing Treatment for Dry, Damaged Hair, Frizz Control \u0026 Heat Protection","description":"\u003cp\u003e\u003cstrong\u003eNATURAL SANT Onion Keratin DuoBox 120ml is a two-step keratin treatment system formulated with onion extract, biotin and rosemary to visibly smooth frizz, strengthen strands and provide thermal protection for dry, damaged hair.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis duo arrives as a compact 120ml kit designed for at-home or salon touchups that deliver smoother, more manageable hair without formaldehyde, parabens or added salt. The formula combines keratin protein with onion extract, rosemary and biotin to help temporarily align the hair cuticle and reduce unruly texture while adding shine. It’s intended as a cosmetic smoothing service rather than a medical treatment; results depend on hair type, application technique and aftercare.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the DuoBox improve hair texture and manage frizz?\u003c\/h3\u003e\n\u003cp\u003eThe keratin base helps coat and smooth the hair shaft while botanical extracts provide support for stronger-looking strands. When applied and sealed correctly, the product reduces visible frizz and creates a sleeker surface that reflects light for added shine.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKeratin protein helps temporarily smooth the cuticle for easier styling.\u003c\/li\u003e\n  \u003cli\u003eOnion extract contributes antioxidants and a conditioning effect.\u003c\/li\u003e\n  \u003cli\u003eBiotin and rosemary aim to strengthen and support hair resilience.\u003c\/li\u003e\n  \u003cli\u003eSealing with heat improves straightness and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat results can I expect and how long do they last?\u003c\/h3\u003e\n\u003cp\u003eExpect noticeably smoother, more polished hair after a complete application and heat sealing. Duration varies with hair porosity and care routine; many users see reduced frizz and maintained smoothness for several months when following recommended aftercare.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical visible smoothing lasts weeks to months depending on hair and upkeep.\u003c\/li\u003e\n  \u003cli\u003eProper blow-drying and flat-ironing during application maximize effects.\u003c\/li\u003e\n  \u003cli\u003eAvoiding clarifying shampoos and reducing washing frequency helps maintain results.\u003c\/li\u003e\n  \u003cli\u003eProducts are free from formaldehyde, parabens and added salt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use the Natural sant Onion Keratin DuoBox for best results?\u003c\/h3\u003e\n\u003cp\u003eUse the DuoBox following the included instructions and in a ventilated space. Key steps generally include cleansing with a clarifying wash, applying the keratin solution evenly, blow-drying to lock product into the strand, and sealing with a flat iron in small sections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStart with clean, towel-dried hair free of oils or heavy products.\u003c\/li\u003e\n  \u003cli\u003eApply the keratin mix evenly from roots to ends; comb through for distribution.\u003c\/li\u003e\n  \u003cli\u003eBlow-dry fully, then flat-iron at recommended temperatures in thin sections.\u003c\/li\u003e\n  \u003cli\u003eAllow the treated hair to rest per instructions before washing for best longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this safe for colored or chemically treated hair?\u003c\/h3\u003e\n\u003cp\u003eThe formula is designed without formaldehyde, parabens or salt, making it compatible with many color-treated and relaxed textures when used correctly. However, perform a strand test and consult a professional if hair is extremely fragile or recently processed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStrand testing helps confirm tolerance and desired outcome.\u003c\/li\u003e\n  \u003cli\u003eLower heat settings may be safer on compromised hair.\u003c\/li\u003e\n  \u003cli\u003eSpace treatments several weeks away from other chemical services when possible.\u003c\/li\u003e\n  \u003cli\u003eIf uncertain, seek a stylist’s advice before full application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Natural sant Onion Keratin DuoBox 120ml is aimed at people with dry, frizz-prone or chemically treated hair who want a salon-style smoothing result at home or in a professional setting. It suits users seeking temporary straightening and surface repair with botanical support from onion, rosemary and biotin, and those who prefer formaldehyde-free cosmetic keratin options. If you need long-term medical treatment for scalp or hair disorders, consult a healthcare professional first.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eOnion\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: Can I apply the DuoBox at home without a stylist?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, many users apply it at home following instructions; use proper heat tools and test a small strand first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this straighten very curly hair completely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It smooths and reduces frizz significantly, but results vary by curl pattern and may not fully straighten very tight curls.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Natural sant","offers":[{"title":"Default Title","offer_id":49627866661002,"sku":"B0D7MTV83X","price":82.72,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/4825\/6394\/files\/natural-sant-front-packaging.jpg?v=1782920717","url":"https:\/\/auviraskincare.com\/products\/natural-sant-onion-keratin-duobox-120ml-2-step-smoothing-treatment-for-dry-damaged-hair-frizz-control-heat-protection","provider":"Auvira Beauty","version":"1.0","type":"link"}