Can be used with ANY manual or electric toothbrush; RESULTS: When used as directed, most customers start to see whiter teeth after the very first use. Several shades whiter in 2-3 days, and up to 7 shades whiter in 30 days with NO SENSITIVITY guaranteed. Professional formula Teeth Whitening Gel with Hyperox Technology, clinically proven to whiten up to 10x better than the leading whitening toothpastes; HOW IT WORKS: The easiest, most affordable way to whiten. Simply combine the GO SMILE Professional Teeth Whitening Gel with your own toothbrush and toothpaste at home and brush for two minutes, twice a day. Whitening Gel uses Hyperox formula to remove stains, making your teeth their whitest possible. Safe to use on all teeth, including braces and dental restorations (fillings, crowns, veneers); REFILL: The GO SMILE Professional Teeth Whitening Gel is also the refill for the Sonic Blue, Dental Pro, Sonic Pro, On-The-Go toothbrush whitening systems from GO SMILE (sold separately); Established in 2002, GO SMILE is an industry leader in oral hygiene beauty products, delivering cutting-edge patented teeth whitening technology for over 15 years. We are headquartered in the San Francisco Bay Area. You are buying directly from GO SMILE here on our official GO SMILE Amazon page Size:3.4 Ounce (Pack of 1) GO SMILEs Professional Teeth Whitening Gel is an effective, at-home whitening solution designed for easy, everyday use. Simply add the Professional Whitening Gel to your own toothbrush and toothpaste. Brush as you normally would, for two minutes, twice a day NO EXTRA STEPS. Our Hyperox formula effectively removes both surface stains and deep stains with virtually no sensitivity. Comes in TSA-compliant 3.4oz tube for business travel or vacation. Todos nuestros productos estan en inglés SKU 91221064495 CHUPAPRECIOSSomos una empresa original, fresca y alegre. Comprometidos en brindarles a nuestro clientes la opción de explorar y descubrir productos exclusivos, con una gran variedad de opciones, que al sonido de un solo click, puedan conseguir cualquier producto vía on-line y enviarlo en cualquier rincón de México.RAZONES PARA COMPRAR CON NOSOTROS Compra con confianza somos mercadolíder. Todos nuestros productos son nuevos y originales. Todos nuestros productos cuentan con 1 mes de garantía.MÉTODO DE COMPRA1) Da click en comprar una vez que hayas resuelto todas tus dudas con nosotros.2) Elige la forma de entrega.3) Puedes pagar con Mercadopago de forma 100% segura.4) Tu paquete llega en un estimado de 4 a 8 días hábiles.PORQUÉ ELEGIRNOS MARCAS ORIGINALES (NO IMITACIONES) SEGURIDAD: 100% COMPRA PROTEGIDA DEVOLUCIÓN: SIN COSTOS ADICIONALES CONFIANZA: SEGURIDAD EN TU PAGO