{"product_id":"strainia-care-straight-serum","title":"STRAINIA Care Straight Serum","description":"\u003cp\u003e\u003cem\u003eFrom the Zen gardens of Japan to your morning routine — where ancient flow meets modern hair science.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eSTRAINIA | Japanese Haircare Engineering for Unruly Hair\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for くせ毛 (Kusege)\u003c\/strong\u003e — Frizzy, wavy, puffy and difficult-to-manage hair, addressed at the source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKaresansui-Inspired Philosophy\u003c\/strong\u003e — The flowing curved lines of Japanese Zen dry gardens inspired STRAINIA’s approach: guiding hair from chaos, through tension, into order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist Development\u003c\/strong\u003e — Created by a team who personally experience unruly hair, in partnership with specialist Japanese manufacturing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Complete System\u003c\/strong\u003e — Part of a full Japanese straight-hair ritual: shampoo, treatment, mask, serum, milk, oil and tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Japan\u003c\/strong\u003e 🇯🇵\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCare Straight Serum — Moisture-Locked, Wave-Proof, Beautifully Straight\u003c\/h3\u003e\u003cp\u003eThe Care Straight Serum was designed for one goal: keeping hair straight regardless of moisture in the air. Built around CMC-similar ingredients that reconstruct the internal moisture balance of each strand, it seals the cuticle from within so the softness and straightness you achieve stays — hour after hour. This is the serum for the hair type that has always fought back.\u003c\/p\u003e\u003ch3\u003eKey Ingredients\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMC-Similar Ingredients\u003c\/strong\u003e — Mimic the function of Cell Membrane Complex to regulate internal moisture balance, glue the cuticle from within and lock straight hair in place; addresses the root cause of frizz and wave reversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWool Keratin (Quaternium-33)\u003c\/strong\u003e — The same protein as hair itself; reinforces curly and damaged strands, delivering firmness, shine and lasting manageability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElcalacton (Y-Docosaracton)\u003c\/strong\u003e — Plant-derived ingredient that bonds to hair under heat; repairs damage while providing active protection against blow-dryer and curling iron heat during styling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhytosterols \u0026amp; Cholesterol\u003c\/strong\u003e — Restore and reinforce the hair’s natural lipid layer for smooth, conditioned texture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroxypropyltrimonium Hydrolyzed Keratin (Wool)\u003c\/strong\u003e — Cationic keratin that adheres to the hair surface to improve combability and reduce breakage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cp\u003eApply to towel-dried or dry hair, focusing on mid-lengths to ends. Distribute evenly and style as usual — blow-dry, straighten, or air-dry. No rinsing required. Use daily as part of the full STRAINIA ritual for cumulative straightening and moisture-control results.\u003c\/p\u003e\u003ch3\u003eIngredients\u003c\/h3\u003e\u003cp\u003eWater, PG, Ethanol, Glycerin, Hydroxyethylcellulose, Hydroxypropyltrimonium Hydrolyzed Keratin (Wool), γ-Docosaracton, Phytosterols, Quaternium-33 (Wool), Cholesterol (Wool), Polyquaternium-7, Polyquaternium-10, (VP\/VA) Copolymer, PPG-4 Ceteth-20, Citric Acid, Citric Acid Na, EDTA-2Na, Distearyl Dimonium Chloride, Behentrimonium Chloride, Propanediol, Methylparaben, Phenoxyethanol, Fragrance\u003c\/p\u003e","brand":"Onsen Hair Spa","offers":[{"title":"Default Title","offer_id":59198653792601,"sku":null,"price":29.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/2690\/8761\/files\/21_25e9687b-72ea-404b-9e91-41431fea5c9a_png.webp?v=1787917695","url":"https:\/\/onsenhairspa.com\/products\/strainia-care-straight-serum","provider":"Onsen Hair Spa","version":"1.0","type":"link"}