Resources
GUIDES & DIGITAL DOWNLOADS
The Circadian Optimization Guide
Every cell in your body keeps time — and it takes its cues from light. Yet most of us now live indoors under artificial light our biology never evolved to read, out of step with the sun that once set our rhythm. This guide is a clear, evidence-grounded look at how natural light and darkness shape your biology, and how to bring daily life back into rhythm with them.
Built from first principles, it treats light not as a background detail but as one of the most fundamental inputs to human health — on par with the food you eat. It moves from the science of how your body keeps time to the practical, day-to-day choices that help you work with your environment rather than against it.
Inside the guide:
THE SCIENCE
Part I — Understanding Circadian Biology. How your internal clocks evolved, how the brain's master clock reads morning light, and what happens when artificial light at night pulls the whole system out of sync.
Part II — The Biology of Full-Spectrum Sunlight. The native electromagnetic environment we were shaped by, the full spectrum of natural light and the work each band performs, how sunlight fuels the mitochondria — and where artificial light falls short.
THE APPLICATION
Part III — Circadian Lifestyle Practices. Strategies to anchor your clock from sunrise to nightfall, building UV tolerance and melanin the healthy way, food considerations, and a one-page daily checklist.
Part IV — Indoor Light Management. Designing a healthier indoor light environment, a straightforward guide to blue-blocking glasses, and the specific tools and resources worth knowing about.
Clear enough to start today, and referenced throughout so you can follow the science as far as you like.
Every cell in your body keeps time — and it takes its cues from light. Yet most of us now live indoors under artificial light our biology never evolved to read, out of step with the sun that once set our rhythm. This guide is a clear, evidence-grounded look at how natural light and darkness shape your biology, and how to bring daily life back into rhythm with them.
Inside the guide:
THE SCIENCE
Part I — Understanding Circadian Biology. How your internal clocks evolved, how the brain's master clock reads morning light, and what happens when artificial light at night pulls the whole system out of sync.
Part II — The Biology of Full-Spectrum Sunlight. The native electromagnetic environment we were shaped by, the full spectrum of natural light and the work each band performs, how sunlight fuels the mitochondria — and where artificial light falls short.
THE APPLICATION
Part III — Circadian Lifestyle Practices. Strategies to anchor your clock from sunrise to nightfall, building UV tolerance and melanin the healthy way, food considerations, and a one-page daily checklist.
Part IV — Indoor Light Management. Designing a healthier indoor light environment, a straightforward guide to blue-blocking glasses, and the specific tools and resources worth knowing about.
Clear enough to start today, and referenced throughout so you can follow the science as far as you like.
FREE RESOURCES
A free guide to wearing blue-blocking glasses properly — when to use them, when not to, which tint for which time of day, and how to choose a pair that actually works. Product recommendations provided.
Ultraviolet light offers a whole pharmacopoeia of beneficial effects within the context of full-spectrum sunlight. Melanin is the built-in shield that lets you benefit without the oxidative damage. Learn how to tan the healthy way.
Always prioritize circadian synchronization, healthy full spectrum sunlight exposure, and connection to nature over products. These are tools and resources I trust to help you shape a healthy living environment and lifestyle.
RECOMMENDED PRODUCTS & TOOLS
At REGENERINT, I believe in the body's natural healing potential when provided with the right conditions. My mission focuses on delivering decentralized health information and strategies that are accessible and largely free. I always prioritize lifestyle changes and a connection to nature over products. However, I recognize modern challenges may require additional support. For that reason, I offer product recommendations and discount codes to help you shape a healthier environment. Disclosure: Some links below are affiliate links. If you buy through them, I may earn a small commission at no extra cost to you — I only recommend what I'd use myself.
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The Daylight Computer (DC-1) is a calm, purpose-built tablet with a reflective, paper-like "LivePaper" display — as easy on the eyes as E-Ink but fast enough for smooth scrolling and video. Its backlight is pure amber with zero blue light and no flicker (PWM-free), so it's genuinely usable after dark without disrupting your circadian rhythm, and it stays readable in direct sunlight.
Visit: DaylightComputer.com
Discount Code: REGENERINT for $50 off
Tap Zap
Tap Zap is lightweight software for Mac and Windows that does two things exceptionally well: it removes 100% of blue (and green) light at the wavelength level — a true red screen, spectrometer-verified, far beyond Night Shift mode — and its PWM-Safe Mode pins the backlight at full power so dimming never triggers the invisible flicker most filters ignore. Two sliders, three presets, under 1% CPU, and your screenshots and video calls stay unaffected. A one-time purchase, not a subscription.Visit: TapZap.app
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VivaRays
VivaRays takes a full-day approach to circadian eyewear: their 3-in-1 system swaps between daytime, sunset, and nighttime lenses, so one frame covers the entire light cycle instead of three separate glasses. Each tint is lab-tested — from clear-to-amber daytime lenses for screens up to a nighttime lens that filters nearly all blue and green light before bed.Visit: VivaRays
Discount Code: REGENERINT for 10% Off
Midwest Light Therapy
Midwest Light Therapy is an accessible, U.S.-based entry point into circadian eyewear, with their Night Prowler line tiered by lens color — yellow for daytime, orange for evening, and red for the deepest nighttime block. A practical, budget-friendly way to build a full day-to-night blue-blocking kit.Visit: Midwest Light Therapy
Discount Code: REGENERINT for 10% Off
EMR-TEK
EMR-TEK pairs serious optics with a genuinely wide frame selection — from magnesium and aviator styles to fit-overs, kids' sizes, and reading magnifications — across daytime (clear/yellow) and nighttime (orange/red) lenses. A good fit if you want blue-blockers that look sharp from a brand that also publishes third-party test data on its light products.Visit: EMR-TEK
Discount Code: REGENERINT for 35% Off
TrueDark
TrueDark built its Daylights, Sunsets, and Twilights tiers to address the full range of "junk light" — not just blue, but green and violet wavelengths too, with the nighttime Twilights blocking nearly all three. They are also a blue-blocker brand with a published EEG study showing their night lenses shift brainwaves toward a calmer, sleep-ready state.Visit: TrueDark
Discount Code: REGENERINT for 10% off
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I always prioritize healthy exposure to full spectrum sunlight above the use of red light devices, starting with regularly seeing the sunrise. However, these devices can offer beneficial supplementation given the deficiency of infrared light in modern living environments and increased amount of mitochondrial stressors.
EMR-TEK
EMR-TEK third-party tests and publishes the actual wavelength, irradiance, flicker, and EMF numbers for every device, using high-output LEDs with zero-flicker industrial drivers. The range scales from the portable Firefly to full-body panels, plus specialty units like the ETERNO face mask and UV-capable systems for those who want more than red and near-infrared.Visit: EMR-TEK
Discount Code: REGENERINT for 35% Off
Chroma engineers some of the most powerful and spectrally versatile light devices on the market — actively cooled so they can drive far higher output than typical panels, with wavelengths most competitors simply don't offer. Their Radiance uses violet light aimed at skin, while the flagship Trinity combines red and near-infrared with selectable violet, UVA, and even narrowband UVB modes to mirror the sun's full daily arc in a single handheld device.
Visit: Chroma
Discount Code: REGENERINT for 10% Off
Midwest Light Therapy
Midwest Light Therapy is built for assembling a complete circadian setup on a budget — affordable red/near-infrared panels alongside red bulbs, low-flicker string lights, and night lights to clean up your evening light environment.Visit: Midwest Light Therapy
Discount Code: REGENERINT for 10% Off
Bon Charge
Bon Charge covers red light therapy from multiple angles — a size-tiered panel range from the compact Bullet up to a full-body Blanket, plus targeted tools many brands don't make, like their face mask, a red light cap for hair, and neck, chest, and even dental devices.Visit: Bon Charge
Hooga
Hooga is a value leader in red light, with a clear upgrade ladder from the entry HG panels to the ULTRA series — quad-chip LEDs running four wavelengths with adjustable brightness and pulsing. Beyond panels, they make belts, hats, face masks, and a full-body pod, so you can target specific areas.Access 12% off using the following link: HoogaHealth.com
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Strainless Lighting
Strainless Lighting is a purist incandescent brand — 100% heated-filament bulbs with zero LED components, giving you full-spectrum, infrared-rich, flicker-free light the way it was before LEDs. Warm 2200K bulbs for daytime, true red incandescents for after dark, plus their own decorative lamp and beeswax candles round out the range.Visit: www.strainlesslighting.com
Discount Code: REGENERINT for 10% off
Health Lighting is the U.S. home of Chromalux, a full-spectrum incandescent bulb made since 1959 that uses tinted neodymium glass to render colors more vividly and naturally than a standard bulb. If you want flicker-free, analog incandescent light with true color fidelity, they stock it in nearly every shape and socket.
Visit: HealthLighting.com
Discount Code: REGENERINT for 10% Off
The Healthy Home Shop fills a gap most circadian brands ignore: recessed and hardwired fixtures — retrofit cans, slim panels, and directional gimbals — so you can make an entire home's ceilings blue-light-free and flicker-free, not just the lamps. Their circadian bulbs and starter kits cover everything else, from Edison-style screw-ins to sensor night lights.
Visit: TheHealthyHome.Shop
Discount Code: REGENERINT for 10% Off
BlockBlueLight
BlockBlueLight offers a wide circadian-lighting range of the group — full-spectrum daytime bulbs alongside amber and red bulbs for night, in nearly every fitting from candelabra to recessed cans. They offer a number of useful tools like desk lamps, book lights, and night lights.Visit: BlockBlueLight.com
Discount Code: REGENERINT for 10% Off
Bon Charge
Bon Charge offers various lighting options that are free of blue light and stress-inducing flicker, including red bulbs, reading clips, lamps, and night lights.Visit: Bon Charge
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Remember, the best and most affordable way to experience the benefits of grounding is to physically touch the Earth’s surface, whether that means walking barefoot on the grass or going for a swim at the beach.
Intuition Physician is the physician-developed grounding line — founded by Dr. Laura Koniver — with an all-natural, organic-materials ethos that deliberately avoids the off-gassing plastics common to mass-market grounding gear. Standouts include their PureGround cord, which filters nnEMF from the ground line, and near-invisible stickers that ground any pair of shoes.
Visit: Intuition Physician
Bahé is grounding built for athletes: rather than a single sole plug, their Ground Flow System runs a conductive pathway from footbed to ground that holds up to real training and is certified to near-zero electrical resistance. Every model comes in three cushioning modes — Endurance, Adapt, and Flex — all zero-drop and foot-shaped to ease the transition to barefoot-style movement.
Discount Link: Visit Bahe.co or 15% Off
Groundz utilizes dual-conductive GroundSync soles that use both copper and carbon-infused rubber to keep you connected to the earth. Their AION and BIOS sneakers and Carbon slip-ons look like everyday shoes while delivering zero-drop, wide-toe-box comfort in natural materials.
Visit: Groundz
Discount Code: REGENERINT for 10% Off
GroundingOfficial.com
GroundingOfficial specializes in grounding you through the night, when the body does most of its repair. Their standout is an elasticized grounding fitted sheet that stays put for uninterrupted skin contact all night — a more comfortable, secure alternative to a flat sheet or a separate mat.Visit: GroundingOfficial.com
Discount Code: REGENERINT for 15% Off
Earthing.com
Earthing.com is an original grounding company that remains the field's foundational resource, anchored by the book Earthing and The Earthing Movie. Their catalog may be the most complete legacy line available, from starter kits and universal mats to full sleep systems.Visit: Earthing.com
Earth Runners
Earth Runners owns the rugged, outdoor end of grounded footwear: minimalist huarache-style adventure sandals with Vibram soles and copper conductors woven into the lacing, made in California. Models like the Circadian and Alpha are built for hiking and trail running while keeping you electrically connected to the ground underfoot.Visit: EarthRunners.com
RHIZAL
RHIZAL is the artisan, natural-leather take on grounded footwear — handcrafted shoes in real leather, suede, and shearling with a copper plug set through the sole for earth contact. Styles like the best-selling Brio slip-on and Kuyu clog pair true barefoot geometry (wide toe box, zero drop) with a level of craftsmanship you don't usually find in this category.Visit: RHIZAL.co
Discount Code: REGENERINT for 10% Off
Hooga
Hooga extends its value-first approach to grounding, with affordable mats, sheets, throw blankets, and starter kits that make earthing easy to try. Because they also make red light devices, it's a convenient one-stop option — just be sure to use grounding gear only in low-nnEMF environments.Access 12% off using the following link: HoogaHealth.com
Safe Living Technologies is where to start if you want to measure your environment before changing it. They carry the trusted Safe and Sound Pro radiofrequency meter and body-voltage meter kits for testing the electric fields around your bed, alongside a full shielding line — EMF bed canopies, shielding fabrics and blankets, Faraday bags, and Swiss Shield materials.
Visit: SafeLivingTechnologies.com
Discount Code: REGENERINT for 5% off
DefenderShield is a testing-and-technology leader in EMF shielding: its multi-layer Ultra Armor is independently lab-verified to block up to 99% of radiation across the full spectrum tested, including the complete 5G range. Founded by 30-year telecom engineer Daniel DeBaun, the lineup runs from the flagship DefenderPad laptop shield to Faraday bags and air-tube headphones.
Visit: DefenderShield
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Axiom H2
Axiom H2 builds premium molecular hydrogen technology around H₂ — a tiny, fast-diffusing gas that research increasingly frames as a cell-signaling molecule (like nitric oxide) rather than a simple antioxidant, nudging the body to boost its own antioxidant defenses and ease inflammation. Solid-State Hydrogen tablets, supersaturated water bottles and inhalation machines available.VIsit: AxiomH2.com
Discount Code: REGENERINT10 for 10% Off
Mayu's Swirl is a handblown-glass countertop carafe that vortexes water with a spinning impeller to re-aerate and structure it — no electricity or plumbing, and handsome enough to leave on the counter. Pair it with their ionic Trace Mineral and Electrolyte Drops to remineralize filtered or reverse-osmosis water.
Visit: MayuWater.com
Discount Code: REGENERINT for $15 Off the Swirl
MEA Water makes flow-through structuring devices that treat water as it passes through — spanning everything from the portable Apollo Gold bottle-top unit to whole-home and agricultural systems.
Visit: MEAWater.com
Discount Code: REGENERINT for 10% Off
Aussie Trace Minerals delivers a complete, ocean-derived matrix of 70-plus ionic minerals and electrolytes — a fuller spectrum than isolated single-mineral products, and lab-tested for heavy metals and purity. Their Complete Liquid Electrolytes are the staple; they also offer a cognition-focused blend with magnesium L-threonate and a topical magnesium spray.
Visit: AussieTraceMinerals.com
Discount Code: REGENERINT for 10% Off
Vera Salt is a hand-harvested Spanish spring salt — naturally rich in calcium, potassium, and magnesium, and independently lab-tested to be microplastic-free, additive-free, and among the lowest in heavy metals of any unrefined salt. A clean, mineral-dense way to salt your food and support electrolyte balance.
Visit: VeraSalt.co
Discount Code: REGENERINT for 10% off
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Remember, the most important way to support your sleep is to start with regular natural light exposure in the morning, coupled with blocking artificial blue light exposure at night. This is important for the proper production and release of circulatory melatonin.
SleepOut Blackout Curtains
SleepOut makes verified 100% blackout curtains that are also GREENGUARD Gold and OEKO-TEX certified — true darkness without the formaldehyde and VOC off-gassing common to cheaper blackout fabric. Their patented suction-cup design installs with no rods, drilling, or tools, making them equally at home in a nursery or a hotel room while traveling.Visit: SleepOut
Dream Recovery's hero is its U.S.-made mouth tape, cut from naturally antibacterial organic bamboo silk with a hypoallergenic, PFAS-free adhesive — offered in beginner Strips, extra-strong Full, and a Plus+ version infused with collagen and CoQ10. Their nasal strips, silk eye masks, and pillowcases round out a full nasal-breathing and sleep-recovery toolkit.
Visit: Dream Recovery
Discount Code: TIM_DREAMTEAM10
VivaRays
Beyond their circadian glasses, VivaRays makes simple, natural sleep tools: an organic-cotton No-Rays blackout mask contoured to block light without pressing on your eyes, and pure beeswax earplugs for quiet. A clean-materials way to round out a dark, restful sleep environment.Visit: VivaRays
Discount Code: REGENERINT for 10% Off
Bon Charge
Bon Charge's sleep line centers on blackout masks in several contoured designs that block light without pressing on your eyes, alongside evening blue-blocking glasses and ready-made sleep bundles. A convenient pick if you'd rather assemble your whole wind-down kit — mask, glasses, and blue-free lighting — from one place.Visit: Bon Charge
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NADS makes men's underwear from GOTS-certified organic cotton — with a 100% organic cotton liner exactly where it matters — to keep the polyester and chemical finishes of conventional underwear off your skin. Fit is engineered too (no-roll waistband, tagless), with an undyed line available for the most sensitive.
Visit: NADS
Discount Code: REGENERINT for 15% Off
Ryker makes men's activewear that performs like technical gym wear but contains zero polyester, nylon, or spandex — natural-fiber shells paired with merino wool liners for natural odor resistance. Independently tested free of BPA, PFAS, and hormone disruptors, pieces like the Apex Short are built for people who'd rather not sweat in plastic.
Visit: Ryker Clothing Co.
Discount Code: REGENERINT for 10% Off
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