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Daylights® Fairlane (Transition)

€104.00
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Due to high demand: only limited stock remaining in the EU warehouse

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Product description

Key Benefits

  • Filters 75% of fatigue-causing blue light indoors.
  • Photochromic lenses block 99% of UVA and UVB outdoors.
  • Reduces eye strain from long screen sessions.
  • Supports focus and sustained daytime energy.
  • Lightweight frame designed for all-day comfort.


TrueDark Daylights® Fairlane (Transition) are built for modern, screen-heavy days that move between indoor and outdoor environments. The yellow photochromic lenses filter 75 percent of harmful blue light from screens and LEDs, helping reduce eye strain and daytime fatigue while allowing energising wavelengths that support alertness and focus.

When stepping outside, the lenses automatically transition to block 99 percent of UVA and UVB rays, providing seamless protection without changing glasses. The classic square frame is crafted from lightweight, durable polycarbonate and finished in matte black for everyday wear. Polarised lenses reduce glare without distorting natural light, making Daylights® Fairlane ideal for workdays, commuting, and extended screen use while supporting a naturally balanced circadian rhythm.

Each pair includes a foldable hardshell case and a microfibre lens cleaning cloth.

Why TrueDark is Healf
Light doesn’t just help you see. It tells your brain how to feel and when to switch on or off. TrueDark focuses on managing what the brand calls “junk light” — artificial blue, green, and violet wavelengths from screens and modern lighting that interfere with your circadian rhythm. Unlike basic blue-light glasses, TrueDark lenses are designed to filter specific wavelengths at different times of day, helping reduce overstimulation and support more natural sleep and focus patterns. Plus, TrueDark is the only brand backed by EEG-verified research showing brainwaves can shift from alert beta states into calmer alpha and even deep-sleep delta states. It’s a practical tool for navigating modern light exposure, not a fashion accessory.

TrueDark was founded by Dave Asprey after years of struggling with poor sleep caused by artificial lighting. When standard blue blockers failed to make a meaningful difference, he worked with neuroscientists and circadian biology experts to develop a more complete light-management system. The insight was simple: blue light isn’t the only problem — green and violet light also affect brain signalling when exposure happens at the wrong time. TrueDark lenses were created to block the right wavelengths at the right moments, helping people better align with their natural 24-hour rhythm. Designed as a sleep, focus, and performance tool, TrueDark exists to help people feel better by fixing light at the source.

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.
Suggested use
When: Mid-morning to early evening.

Where: Great for heavy screen use and in artificially lit environments like offices, airports, stores, and events. Transition lenses are meant for brief outdoor use. For optimal circadian support, allow some natural sunlight exposure while outside.

Why: Supports energy and focus by filtering fatigue-causing junklight wavelengths while letting in beneficial light.

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.