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Clyde BlueSync

€248.55
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1

Due to high demand: only limited stock remaining in the EU warehouse

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Product description

Key Benefits

  • Boosts daytime energy and mood.
  • Supports focus, clarity, and cognition.
  • Enhances sleep depth and recovery.
  • Filters harsh light to protect vision.


Power through your day with Clyde BlueSync – eyewear engineered to support your circadian rhythm and sharpen both mental and physical performance. By enhancing beneficial light and filtering the most harmful wavelengths, BlueSync helps you stay energised, focused, and in sync with your natural rhythm.

Each pair actively stimulates your circadian system, helping to increase daytime alertness, improve mood, and optimise cognitive function. The benefits don’t stop at sunset—this light balance continues to support deeper, more restful sleep at night. Whether you’re working shifts, adjusting to jet lag, or recovering from late nights, BlueSync keeps your internal clock on track.

With a clear, contemporary frame inspired by medical geneticist Clyde Edgar Keeler, the design pairs modern curves with a transparent saddle bridge for a comfortable and stylish fit. Suitable for medium to large faces, it offers enhanced clarity, reduced glare, and all-day comfort.

Why Ra Optics is Healf
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.
Ingredients
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.
Suggested use
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.

Reviews

  • 8 months ago

    By far the best blue light blocking glasses.

    The frames are of an excellent quality unlike most other brands, i have a special knack of breaking them so to have ones with as high quality as these frames amazing! The lenses are also bar none prefer these to the standard blue or yellow for sure!

    Daniel L.

The Healf Promise

Rated 4.8 (Excellent) based on 13,000+ reviews on Trustpilot

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Frequently asked questions

How do we curate our products?

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.

Do you have resources on how to enhance wellbeing?

The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.


How can I find out more about the ingredients in a product?

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.

Healf Curation Process™

Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.