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Why So Many People Are Adding Glycine to Their Nightly Routine (And What Most Supplements Get Wrong)

Updated on Mar 9, 2026
Why So Many People Are Adding Glycine to Their Nightly Routine (And What Most Supplements Get Wrong)
Medically reviewed by Dr. Sara Alisha Khan, MD, PGDMLE— Written by Dr. Dominic Gartry, MD
Updated on Mar 9, 2026

Table of contents

You know that feeling. You're exhausted by 9pm. Fall into bed. And then… nothing. Your body is tired but your brain won't stop.

Or maybe you fall asleep fine, but wake up at 2am, staring at the ceiling. By morning, you feel like you barely slept at all.

So you drag through the day. Coffee helps for an hour. Then the fog rolls back in. Focus slips. Patience thins. You catch yourself re-reading the same email three times.

And the worst part? You've tried things. Melatonin made you groggy. Magnesium helped a little. Herbal teas did nothing. You started to wonder if this was just… getting older.

It doesn't have to be.

What glycine actually does (and why it matters more than you think)

Glycine is an amino acid. Your body makes some of it on its own. But here's what most people don't realise, by the time you're in your 40s, your body's production can't keep up with demand.

And demand is high. Glycine plays a role in nearly every system you'd want running well: sleep regulation, antioxidant defence, collagen production, and even how your nervous system calms down at the end of the day.

When researchers gave participants 3g of glycine before bed, they didn't just fall asleep faster. They reported feeling more rested, more alert the next morning, and less fatigued during the day. Not by masking the problem the way melatonin does, but by actually helping the body reach deeper, more restorative sleep.

That's the difference between a sleep aid and sleep support. One knocks you out. The other helps your body do what it's supposed to do naturally.

But glycine alone isn't the full picture

Here's where it gets interesting. Glycine is one of three amino acids your body needs to produce glutathione, often called the body's "master antioxidant."

Glutathione is what protects your cells from oxidative stress. It supports mitochondrial function, which is a technical way of saying it helps your cells produce energy efficiently. When glutathione levels drop, which they do with age, you feel it. Slower recovery. More inflammation. That general sense of running on fumes.

The problem? You can't just take glutathione directly. It's a large molecule, and your gut breaks it down before it reaches your cells. It's like pouring water into a bucket with holes.

The smarter approach is to give your body the raw materials to make its own glutathione. And that's where NAC, N-Acetyl L-Cysteine, comes in.

NAC provides the other critical building block. When you combine glycine and NAC together, you're effectively giving your body the full toolkit it needs to restore glutathione levels from the inside out.

This is exactly the thinking behind OMRE Glycine + NAC.

Why we built this formula the way we did

Most glycine supplements on the market underdose. You'll see 500mg here, 250mg there, well below what the research actually used. Others sell glycine and NAC separately, which means you're buying two bottles, guessing at ratios, and hoping it works.

We took a different approach.

OMRE Glycine + NAC combines 1,000mg of glycine with 500mg of NAC in a single formula. Those doses weren't pulled out of thin air, they're grounded in the published research on glutathione synthesis and amino acid supplementation.

No fillers. No proprietary blends that hide what's actually inside. Every batch is third-party tested in the USA for dose accuracy, purity, bacteria, fungus, and heavy metals. We publish the results because we think you should be able to see exactly what you're putting in your body. (Most brands don't do this. Ask yourself why.)

It's made in GMP-certified facilities. Doctor-developed. And it comes with a money-back guarantee, because if it doesn't work for you, we'd rather give you your money back than keep it.

What people actually notice

Here's what we hear most often from our customers, and what the science would predict:

The first thing most people report is better sleep. Not a drugged, heavy sleep. A clean, deep rest where you wake up and actually feel like you slept. That 3am wake-up starts to fade. Mornings feel different.

Within the first 30 days, glutathione production ramps up. Your body's internal defences get the support they've been missing. This is the quiet work, the stuff happening at a cellular level that you can't see yet, but your body can feel.

By 90 days, people describe steadier energy. Less of that afternoon crash. Faster bounce-back after exercise or a stressful week. Some notice their skin looks better, which makes sense, since glycine is a key component of collagen.

The longer you stay with it, the more compounding benefits people describe, improved resilience to everyday stress, better mood stability, and that hard-to-define feeling of just… functioning better.

A note on trust

We know you've been let down by supplements before. The industry is full of big promises and tiny doses. Flashy labels and zero transparency.

That's why we built OMRE differently. Every product is developed by an experienced doctor on a science-led basis. We only formulate when the active ingredients have solid published research behind them. We don't chase trends. We follow the data.

Over 200,000 customers have made that same decision. Not because of marketing. Because the product works and the results speak for themselves.

Here's what it costs (and why it's worth thinking about)

A 3-month supply, the most popular option, works out to $0.93 per serving. Less than a dollar a day.

Less than the afternoon coffee you're using to push through. Less than the melatonin that leaves you groggy. Less than the cost of another restless night compounding into another foggy, frustrating day.

Subscribe and save 20%. Skip, pause, or cancel whenever you want. No contracts. No hoops.

And if it doesn't work for you? Money-back guarantee. No questions asked.

You already know something needs to change. The research on glycine is real. The science behind glutathione is decades deep. And OMRE is the formula that puts it all together, at the right doses, with full transparency, backed by a guarantee.

Stop dragging through your days. Start waking up like you actually slept.

Free US shipping on orders over $80. Third-party tested. Doctor-developed. 30-day money-back guarantee.

About the author

Dr. Dominic Gartry, MD

Dr. Dominic Gartry, MD is a UK-licensed physician (GMC: 7271788) and graduate of Queen Mary University of London. With over a decade of clinical experience including extensive emergency medicine training, he now specializes in evidence-based anti-aging medicine and longevity science, translating emerging research into practical health strategies.

Medically reviewed by
Dr. Sara Alisha Khan, MD, PGDMLE

Sara Alisha Khan, MD is a physician and medical reviewer with experience in clinical care, telemedicine, and medical AI. She is currently a Project Consultant at AIIMS (All India Institute of Medical Sciences), New Delhi, and has supported medical AI diagnostic projects, including fetal ultrasound imaging. At OMRE, she reviews health content for clinical accuracy, safety, and evidence alignment.

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Glycine + NAC
Glycine + NAC
Glycine + NAC
Glycine + NAC
Glycine + NAC
Glycine + NAC

Glycine + NAC

Glycine + NAC
Glycine + NAC
Glycine + NAC
Glycine + NAC
Glycine + NAC
Glycine + NAC

Boost Glutathione levels with Glycine + NAC - your body’s most powerful antioxidant.*

Servings | per serving
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“As a medical professional, I value Omre’s focus on evidence-based supplementation and bioavailable ingredients. It’s refreshing to see a brand that prioritizes clarity, trust, and real results.”
Dr. Sara Alisha Khan
Medical Doctor (MD)
Real People, Real Results
Suggested Use

Take 2 capsules in the morning, with food, for best results.

Free From

Gluten, Dairy, Soy, Artificial colors, Preservatives and Flavouring.

Supplement Facts