{"product_id":"natural-sant-onion-keratin-duobox-2-step-anti-frizz-shampoo-keratin-treatment-formaldehyde-free","title":"Natural sant Onion Keratin DuoBox — 2‑Step Anti‑Frizz Shampoo + Keratin Treatment, Formaldehyde‑Free","description":"\u003cp\u003e\u003cstrong\u003eNatural Sant Onion Keratin DuoBox is a two-step shampoo and keratin smoothing treatment set that softens hair, reduces frizz, and creates a glossy, manageable finish without formaldehyde, parabens, or added salt.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit pairs a clarifying, onion‑infused shampoo with a keratin smoothing treatment designed for at‑home use. Together they cleanse, fortify, and temporarily smooth the hair shaft so styling is easier and results look polished. The formula blends onion extract with botanical allies—rosemary and biotin—plus keratin to address dryness and rough texture while avoiding harsh additives.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the DuoBox reduce frizz and improve smoothness?\u003c\/h3\u003e\n\u003cp\u003eThe treatment combines keratin to coat and reinforce hair fibers with onion extract and conditioning botanicals that help tame flyaways. Used after cleansing, the keratin forms a smoothing layer that makes strands lie flatter and reflect light, producing a silkier appearance. Results depend on hair type and following the application and heat‑sealing steps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKeratin treatment applied on towel‑dried hair, left 10–15 minutes, then rinsed.\u003c\/li\u003e\n  \u003cli\u003eBlow‑dry and flat‑iron to seal the smoothing layer into the shaft.\u003c\/li\u003e\n  \u003cli\u003eShampoo removes buildup and prepares hair for even treatment spread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat ingredients nourish and protect hair in this set?\u003c\/h3\u003e\n\u003cp\u003eThe formula centers on onion extract, supported by rosemary and biotin to condition and help improve manageability. Keratin provides a protein coating that smooths and helps reduce breakage from daily styling. The product is formulated without formaldehyde, parabens, or added salt for a gentler finishing treatment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOnion extract for conditioning and scalp-supportive nutrients.\u003c\/li\u003e\n  \u003cli\u003eKeratin protein for surface smoothing and enhanced shine.\u003c\/li\u003e\n  \u003cli\u003eRosemary and biotin to help strengthen and soften strands.\u003c\/li\u003e\n  \u003cli\u003eNo formaldehyde, parabens, or added salt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the shampoo and keratin treatment for best results?\u003c\/h3\u003e\n\u003cp\u003eStart with a thorough wash using the included shampoo to eliminate oils and styling residues so the treatment can adhere evenly. Apply a thin, even layer of the keratin treatment to towel‑dried hair, wait 10–15 minutes, then rinse until water runs clear. Finish by blow‑drying and flat‑ironing to lock in the smoothing layer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse shampoo first to cleanse; towel‑dry before treatment.\u003c\/li\u003e\n  \u003cli\u003eSpread treatment thinly and evenly from roots to ends.\u003c\/li\u003e\n  \u003cli\u003eRinse fully after 10–15 minutes, then blow‑dry and flat‑iron to seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long do smoothing effects typically last and what maintenance is needed?\u003c\/h3\u003e\n\u003cp\u003eDuration varies by hair porosity and styling routine; many users notice improved smoothness for several weeks with proper aftercare. Avoid heavy salt or clarifying products that strip the keratin layer; use gentle, sulfate‑free shampoos and limit frequent high‑heat styling to prolong results. Periodic touch‑up treatments can refresh the smoothing effect as it gradually fades.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExpect several weeks of smoother, shinier hair depending on care.\u003c\/li\u003e\n  \u003cli\u003eUse gentle shampoos and avoid harsh clarifiers to extend effects.\u003c\/li\u003e\n  \u003cli\u003eRepeat treatment when smoothing diminishes or as needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Natural Sant Onion Keratin DuoBox suits people with frizz‑prone, dry, or chemically treated hair who want a salon‑style smoothing result at home without formaldehyde or parabens. It’s designed for users willing to follow the two‑step process—cleanse, treat, rinse, then heat‑seal—to gain straighter, shinier hair that’s easier to style. If you prefer low‑maintenance daily care or have very fine hair, adjust the amount and frequency to avoid weighing hair down.\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: Is the keratin treatment safe for color‑treated hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the formula is free from formaldehyde and parabens and is generally compatible with color‑treated hair; perform a strand test first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long should I wait between repeat treatments?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Wait at least 6–8 weeks or until smoothing noticeably fades, then reapply as needed based on hair condition.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Natural sant","offers":[{"title":"Default Title","offer_id":67548682911914,"sku":"B0D7MTV83X","price":69.24,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/8989\/6874\/files\/natural-sant-duobox-front-packaging.jpg?v=1790809080","url":"https:\/\/opulora.ca\/products\/natural-sant-onion-keratin-duobox-2-step-anti-frizz-shampoo-keratin-treatment-formaldehyde-free","provider":"OPULORA","version":"1.0","type":"link"}