Posted by Marsee Cannon
on August 05, 2026
Wine disrupts your sleep in two distinct ways: the GABA rebound and cortisol spikes. L-Ornithine is how Wine & Shine supports the cortisol side, and it's a big part of why our formula is built the way it is.
What L-Ornithine Is
L-Ornithine is an amino acid, though not one of the twenty that make up proteins directly. Instead, it plays a central role in the urea cycle — the process your liver uses to convert ammonia, a natural byproduct of processing protein and alcohol, into urea so it can be cleared from your body. Your body produces some L-Ornithine on its own, but supplementing it directly gives that cycle more raw material to work with when demand is higher than usual.
Two Reasons You Wake Up at 3 AM — And Why L-Ornithine Targets One of Them
There are two separate mechanisms behind the wine-drinker's classic middle-of-the-night wake-up. One is the GABA rebound: alcohol temporarily boosts GABA activity in your brain, which is part of why you feel relaxed and fall asleep easily — but as that effect wears off a few hours later, your brain's activity swings back the other way, often waking you up. The other is the overnight cortisol pattern: alcohol in the evening can shift your body's stress-hormone rhythm earlier and higher than it would normally rise, landing right in the middle of your sleep cycle instead of the next morning where it belongs.
L-Theanine in our formula is included with the GABA side of that equation in mind. L-Ornithine is the ingredient most directly tied to the cortisol side.
The Cortisol Research — The Morning After Alcohol, Specifically
The most directly relevant research on L-Ornithine and cortisol isn't a general stress study — it's a study built around this exact scenario. Researchers gave participants alcohol before bed, then either a placebo or 400 mg of L-Ornithine, and measured cortisol in saliva the next morning. The ornithine group showed reduced cortisol on waking compared to placebo, along with improvements in reported fatigue, sluggishness, and mood.
We want to be precise about what this shows: the research supports lower morning-after cortisol levels with L-Ornithine, not a mechanism that blocks or "prevents" a cortisol spike outright. That's an important distinction to hold onto, since it's the difference between a claim we can stand behind and one we can't yet substantiate.
We also want to flag two honest limitations on this study, rather than gloss over them: it was small (11 to 16 participants), and the study group was specifically people with a genetic alcohol-flushing trait common in East Asian populations, which affects how the body processes alcohol's byproducts. Results in a broader population may look similar, but that hasn't been established with the same specificity yet.
Taken together: the ammonia-clearance mechanism is well-established, and the alcohol-specific cortisol research is genuinely encouraging and directly on-topic for what Wine & Shine is built for — but it's early-stage evidence, not a settled, universal finding.
To be precise: L-Ornithine is included in Wine & Shine to support your body's natural ammonia clearance process and is associated in early research with lower overnight cortisol after alcohol consumption specifically. It doesn't block, prevent, or treat any hormonal or metabolic condition, and Wine & Shine isn't intended to diagnose, treat, cure, or prevent any disease.
Part of a Patent-Pending Combination
L-Ornithine isn't working alone. It's one piece of our patent-pending combination alongside DHM, L-Cysteine, L-Theanine, Stinging Nettle, and Molybdenum — five ingredients chosen to work together across the different systems your body manages after wine: alcohol byproduct processing, antioxidant defense, ammonia clearance, and the GABA and cortisol pathways behind that overnight wake-up. It's this combination, not any single ingredient in isolation, that we believe sets Wine & Shine apart from single-ingredient DHM products on the market.
Why It's in Wine & Shine
DHM gets the headlines, but recovery after wine touches several systems at once — antioxidant defense, amino acid clearance, and overnight stress hormone patterns among them. L-Ornithine's well-established role in ammonia clearance, paired with encouraging (if still early-stage) research on overnight cortisol after alcohol specifically, is a big part of what makes this formula's combination unique.
Sources: a placebo-controlled crossover trial on L-Ornithine and salivary cortisol the morning after alcohol consumption; and research on ornithine's role in the urea cycle and ammonia clearance.
Explore the formula and the research → Shop Wine & Shine →
Wine & Shine is a dietary supplement intended to support your body's natural processes. It is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.
