A stylish circadian lens with a crystal frame and tinted lenses that boost energy, sharpen focus, and support deeper sleep through light optimisation.
Buy now, pay later from £52.25/mo
Key Benefits
Boosts daytime energy and mood.
Supports focus, clarity, and cognition.
Enhances sleep depth and recovery.
Filters harsh light to protect vision.
Brighten your day with Popp BlueSync – circadian-enhancing eyewear designed to energise the body, sharpen the mind, and restore healthy sleep. BlueSync lenses enhance beneficial light and filter out harmful wavelengths, helping regulate your circadian rhythm and improve overall performance.
Each pair supports mental clarity, physical stamina, and mood throughout the day, while setting the foundation for better sleep at night. Whether you're navigating time zone shifts, working late hours, or bouncing back from a night out, Popp BlueSync helps keep your rhythm steady and your focus sharp.
Inspired by Fritz-Albert Popp, the pioneering biophysicist who uncovered the role of light in human biology, the Popp frame features a contemporary crystal finish with classic rectangular lenses, detailed wire-core arms, and a matching saddle bridge. The tinted lenses stand out boldly, just like the energy boost they deliver. Designed to fit medium face shapes with comfort and style.
BlueSync uses advanced photobiology to deliver targeted light therapy through its lenses. Designed in collaboration with a leading expert, it filters harmful UVA, UVB, and high-energy visible light to protect cells from damage, while allowing regenerative red and near-infrared light to pass through. It emphasises long-wavelength blue light—peaking at 480nm—which plays a key role in activating the circadian rhythm, the internal clock that drives energy, mood, focus, and physical performance. This selective transmission supports both biological protection and daytime stimulation in perfect balance. With BlueSync, you can gain improved focus, enhanced energy, and better sleep—all from a single pair of lenses.
Ra Optics was founded by Matt Maruca after his own health journey led him to uncover the effects of artificial light on circadian biology. His mission became clear: to create the world’s highest-quality blue-light-blocking eyewear, backed by peer-reviewed science and guided by ancestral principles. Crafted with proprietary lens technology, Ra Optics glasses are engineered to protect mitochondrial function, regulate melatonin production, and reduce the impact of screen-induced fatigue. It’s a deceptively simple tool, designed to restore one of the body’s most critical rhythms—light and darkness.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Ra Optic's lenses have been designed and developed with the world's leading experts on light-protective technology, and utilize the world’s most advanced, proprietary blue light-absorbing pigment technology.
Ra Optic's frames are designed with keen attention to detail and handcrafted using the world’s highest quality materials—Italian Acetate and German-Engineered Metal—into a variety of trending and timeless styles. There is a frame for everyone.
Wear BlueSync eyewear during daylight hours—especially in the morning and early afternoon—to support healthy energy levels, focus, and alertness. For best results, use consistently while working indoors, under artificial lighting, or during screen time.
A stylish circadian lens with a crystal frame and tinted lenses that boost energy, sharpen focus, and support deeper sleep through light optimisation.
Buy now, pay later from £52.25/mo
Key Benefits
Boosts daytime energy and mood.
Supports focus, clarity, and cognition.
Enhances sleep depth and recovery.
Filters harsh light to protect vision.
Brighten your day with Popp BlueSync – circadian-enhancing eyewear designed to energise the body, sharpen the mind, and restore healthy sleep. BlueSync lenses enhance beneficial light and filter out harmful wavelengths, helping regulate your circadian rhythm and improve overall performance.
Each pair supports mental clarity, physical stamina, and mood throughout the day, while setting the foundation for better sleep at night. Whether you're navigating time zone shifts, working late hours, or bouncing back from a night out, Popp BlueSync helps keep your rhythm steady and your focus sharp.
Inspired by Fritz-Albert Popp, the pioneering biophysicist who uncovered the role of light in human biology, the Popp frame features a contemporary crystal finish with classic rectangular lenses, detailed wire-core arms, and a matching saddle bridge. The tinted lenses stand out boldly, just like the energy boost they deliver. Designed to fit medium face shapes with comfort and style.
BlueSync uses advanced photobiology to deliver targeted light therapy through its lenses. Designed in collaboration with a leading expert, it filters harmful UVA, UVB, and high-energy visible light to protect cells from damage, while allowing regenerative red and near-infrared light to pass through. It emphasises long-wavelength blue light—peaking at 480nm—which plays a key role in activating the circadian rhythm, the internal clock that drives energy, mood, focus, and physical performance. This selective transmission supports both biological protection and daytime stimulation in perfect balance. With BlueSync, you can gain improved focus, enhanced energy, and better sleep—all from a single pair of lenses.
Ra Optics was founded by Matt Maruca after his own health journey led him to uncover the effects of artificial light on circadian biology. His mission became clear: to create the world’s highest-quality blue-light-blocking eyewear, backed by peer-reviewed science and guided by ancestral principles. Crafted with proprietary lens technology, Ra Optics glasses are engineered to protect mitochondrial function, regulate melatonin production, and reduce the impact of screen-induced fatigue. It’s a deceptively simple tool, designed to restore one of the body’s most critical rhythms—light and darkness.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Ra Optic's lenses have been designed and developed with the world's leading experts on light-protective technology, and utilize the world’s most advanced, proprietary blue light-absorbing pigment technology.
Ra Optic's frames are designed with keen attention to detail and handcrafted using the world’s highest quality materials—Italian Acetate and German-Engineered Metal—into a variety of trending and timeless styles. There is a frame for everyone.
Wear BlueSync eyewear during daylight hours—especially in the morning and early afternoon—to support healthy energy levels, focus, and alertness. For best results, use consistently while working indoors, under artificial lighting, or during screen time.
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
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We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.