{"product_id":"hello-face-t100-red-light-therapy-hair-growth-cap-660-850nm","title":"Hello Face T100 Red Light Therapy Hair Growth Cap 660 \u0026 850nm","description":"\n\u003cp\u003eThe \u003cstrong\u003eHello Face T100\u003c\/strong\u003e is a wearable red light \u0026amp; near-infrared (NIR) therapy cap designed to support scalp wellness and encourage thicker, fuller-looking hair — all from the comfort of your own home. With 336 triple-core LEDs emitting at precisely 660nm and 850nm, this fisherman-style bucket hat delivers targeted photobiomodulation therapy with zero hassle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.*\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the Hello Face T100?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e336 Triple-Core LEDs\u003c\/strong\u003e — 112 red light chips (660nm) + 224 near-infrared chips (850nm) in a precise 1:2 ratio for comprehensive scalp coverage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e40 mW\/cm² Irradiance\u003c\/strong\u003e — Consistent, powerful light output across all three operating modes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWireless \u0026amp; Portable\u003c\/strong\u003e — Built-in rechargeable controller with 3,000mAh capacity for up to 1 hour of use per charge; no cords, no wall-hugging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStylish Bucket Hat Design\u003c\/strong\u003e — Wear it discreetly at home or on the go; fits most adults with a 23.4\" (61cm) head circumference\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto 20-Minute Shutoff\u003c\/strong\u003e — Built-in timer ensures consistent, safe sessions every time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; RoHS Certified\u003c\/strong\u003e — Meets international safety and quality standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDual-Wavelength Technology\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e660nm Red Light\u003c\/strong\u003e works at the surface level to energize scalp cells, nourish follicles, and improve overall scalp condition. \u003cstrong\u003e850nm Near-Infrared Light\u003c\/strong\u003e penetrates deeper into tissue to support healthy blood circulation and promote a balanced scalp environment — working together to nurture the foundation for thicker, stronger hair strands.\u003c\/p\u003e\n\n\u003ch2\u003e3 Light Modes\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eMode\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContinuous (Photon)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull-spectrum scalp nourishment \u0026amp; daily maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e10Hz Pulse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGentle stimulation for everyday use\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e40Hz Pulse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntensive activation targeting thinning areas\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eCharge the controller via the included USB-C cable using a DC 5V 2A (or higher) adapter.\u003c\/li\u003e\n  \u003cli\u003eConnect the controller to the cap, then press and hold the power button for 1 second to turn on.\u003c\/li\u003e\n  \u003cli\u003eShort-press the power button to cycle through the three light modes.\u003c\/li\u003e\n  \u003cli\u003eAfter 20 minutes, the device will beep 5 times and shut off automatically. Restart for additional sessions as desired.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eHygienic \u0026amp; Durable Daily Design\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof \u0026amp; Sweat-Resistant Inner Liner\u003c\/strong\u003e — Ideal for regular use; simply wipe clean with a damp cloth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight ABS Construction\u003c\/strong\u003e — Comfortable for extended wear while reading, watching TV, or relaxing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit\u003c\/strong\u003e — 61cm circumference suits most men and women\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× T100 Hair Growth Cap\u003c\/li\u003e\n  \u003cli\u003e1× Wireless Controller (3,000mAh)\u003c\/li\u003e\n  \u003cli\u003e1× USB Charging Cable\u003c\/li\u003e\n  \u003cli\u003e1× User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal LEDs:\u003c\/strong\u003e 336 (112 red + 224 NIR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWavelengths:\u003c\/strong\u003e 660nm + 850nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLight Output:\u003c\/strong\u003e 40 mW\/cm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 5V \/ 2A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e Rechargeable battery (3,000mAh controller)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Circumference:\u003c\/strong\u003e 61cm \/ 23.4\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, RoHS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking to explore more advanced light therapy tools for your wellness routine? Check out our \u003ca href=\"\/products\/792leds-510k-l7-large-red-light-therapy-led-panel-infrared-light-pad-human-pet-full-body-use-massage-relaxation-660nm-850nm\"\u003e792LEDs L7 Full-Body Red Light Therapy LED Panel (660nm 850nm)\u003c\/a\u003e for whole-body sessions, or browse our \u003ca href=\"\/products\/10pcs-dr-pen-q1s-hello-face-q2-cartridge-replacement-parts-nano-9pin-14pin-25pin-microneedling-pen-titanium-kit-0-25mm-needle\"\u003eHello Face Q2 Microneedling Pen Replacement Cartridges\u003c\/a\u003e for complementary scalp care tools.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.health.harvard.edu\/staying-healthy\/treating-female-pattern-hair-loss\" target=\"_blank\" rel=\"noopener\"\u003eHarvard Health on hair loss\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: How often should I use the Hello Face T100 red light therapy hair cap?\u003c\/h4\u003e\n\u003cp\u003eA: For best results, most users incorporate a 20-minute session daily or at least 4–5 times per week. The built-in auto-shutoff timer makes it easy to maintain a consistent routine. Consistency over several months is key to seeing visible improvements in hair density and scalp condition.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can both men and women use the Hello Face T100?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The T100 features a universal 61cm (23.4\") head circumference design that comfortably fits most adult men and women. Its stylish bucket hat appearance makes it suitable for discreet use at home or outdoors.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long does the battery last, and how do I charge the controller?\u003c\/h4\u003e\n\u003cp\u003eA: The included wireless controller houses a 3,000mAh rechargeable battery, providing approximately 1 hour of therapy per full charge (equivalent to 3 × 20-minute sessions). Charge it using the included USB-C cable with any DC 5V 2A (or higher) adapter — such as a standard phone charger or power bank.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the 660nm and 850nm wavelengths?\u003c\/h4\u003e\n\u003cp\u003eA: The 660nm red light wavelength targets the outer layers of the scalp to energize cells and nourish hair follicles. The 850nm near-infrared wavelength penetrates deeper into the scalp tissue to support circulation and create a healthier environment at the follicle root level. Together, these dual wavelengths work synergistically for comprehensive scalp and hair support.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How often should I use the Hello Face T100 red light therapy hair cap?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For best results, most users incorporate a 20-minute session daily or at least 4–5 times per week. The built-in auto-shutoff timer makes it easy to maintain a consistent routine. Consistency over several months is key to seeing visible improvements in hair density and scalp condition.\"}}, {\"@type\": \"Question\", \"name\": \"Can both men and women use the Hello Face T100?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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