{"product_id":"glassflash-cysteine-shine-serum","title":"Glassflash — Cysteine Shine Serum","description":"\u003ch2\u003eStep 5: Seal\u003c\/h2\u003e\u003cp\u003eThe final act. \u003cstrong\u003eGlassflash\u003c\/strong\u003e is a cysteine shine serum that seals the cuticle shut — locking in all the repair, hydration, and lift from the steps before, while flooding each strand with mirror-like shine.\u003c\/p\u003e\u003cp\u003eCysteine, the amino acid at the heart of the hair's protein structure, works to smooth and seal the cuticle layer, creating that coveted glass-hair effect. Light reflects off the surface in a single, unified direction — the definition of real glass hair.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e🔬 \u003cstrong\u003eCysteine Sealing Complex\u003c\/strong\u003e — amino acid technology locks cuticles flat\u003c\/li\u003e\n\u003cli\u003e✨ \u003cstrong\u003eMirror-Like Shine\u003c\/strong\u003e — light-reflecting finish for true glass hair\u003c\/li\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eProtective Barrier\u003c\/strong\u003e — shields against humidity, heat, and environmental damage\u003c\/li\u003e\n\u003cli\u003e🧪 \u003cstrong\u003eScience Backed\u003c\/strong\u003e — developed in Korea with 15+ years of protein structure research\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e50ml \/ 1.7oz\u003c\/em\u003e\u003c\/p\u003e","brand":"Sequel","offers":[{"title":"Default Title","offer_id":54010310394198,"sku":null,"price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/0909\/9862\/files\/2_70f2d63d-ccab-4425-a3e3-29f6b7761c88.png?v=1779893034","url":"https:\/\/buysequel.com\/products\/glassflash-cysteine-shine-serum","provider":"Sequel - Hair","version":"1.0","type":"link"}