What is the link between collagen and sleep?

What if the secret to deep and restorative sleep was in your wellness routine?
Collagen, much more than a beauty ally, plays a still little-known role in sleep quality. Thanks to the natural presence of glycine, an amino acid with soothing properties, it acts directly on the mechanisms of nocturnal rest. 

Increasingly popular, marine collagen-based dietary supplements are now established as genuine supports to rebalance restless nights, promote falling asleep, and extend deep sleep phases. 

Discover how this structural protein can transform your nights... and awaken your vitality ✨

What is collagen?

Collagen is an essential structural protein abundantly present in our body. It accounts for about 30% of the total proteins in the body and plays a crucial role in the formation and maintenance of the structure of the skin, hair, nails, joints, and bones. 

From the age of 25, collagen production decreases, which can lead to signs of aging such as wrinkles and skin sagging.

Discover everything you need to know about collagen to better understand its importance.

Why is sleep essential for health?

Sleep is a fundamental biological function that allows the body to regenerate and repair itself. 

During sleep, essential processes such as hormone production, tissue repair, and memory consolidation take place. Quality sleep is therefore crucial to maintain optimal physical and mental balance.

How does sleep contribute to the natural production of collagen?

During the night, the body enters a regeneration phase. This is when collagen production is most active. 

This protein is essential for the firmness and elasticity of the skin and contributes to the regeneration of skin cells. 

Restorative sleep therefore promotes the natural production of collagen, thus helping to maintain young and healthy skin.

Glycine: key amino acid of collagen

Collagen, an essential structural protein in our body, is naturally rich in glycine, an amino acid with valuable properties for sleep quality. 

Often overlooked, glycine acts as a true regulator of the nervous system, providing a subtle yet effective calming effect. It helps to reduce core body temperature, a key mechanism to trigger faster sleep onset and dive into deeper sleep.

💚 Why is it important? Easier falling asleep, a less restless night, and optimal recovery are the pillars of lasting well-being — and glycine plays a central role at every stage.

To learn more about the benefits of collagen, check out our dedicated article.

Influence on falling asleep and night awakenings

Thanks to its action on NMDA receptors in the brain, glycine helps induce a natural state of relaxation without causing daytime drowsiness. It promotes a shorter time to fall asleep and limits nocturnal micro-awakenings, often responsible for fragmented sleep. 

By incorporating collagen into your evening routine, you provide your body with a favorable environment for continuous and restorative sleep.

Impact on deep sleep phases

Deep sleep phases are essential for the body: this is where cellular regeneration, memory consolidation, and elimination of brain toxins take place. 

By supporting the natural production of glycine, collagen promotes entry into these deep and restorative cycles, where the body can truly repair itself, recharge... and shine.

Role in recovery and regeneration

Quality sleep acts as a catalyst for beauty and health: it is during the night that cellular renewal is activated, particularly in the skin, hair, nails, muscles, and joints. 

The glycine present in collagen helps support these processes, reducing visible signs of fatigue and optimizing natural recovery abilities.

What if persistent fatigue was a sign of collagen deficiency?

Explore our article explaining the link between collagen deficiency and fatigue, to understand how to restore your reserves and regain energy and radiance.

💤Melatonin stimulation

Melatonin, often called the sleep hormone, is essential for falling asleep and regulating the sleep-wake cycle. 

The consumption of collagen – especially through powders or supplements rich in glycine – supports the endogenous production of melatonin, promoting faster falling asleep and more stable sleep throughout the night.

⏰Influence on circadian cycles

Melatonin produced through collagen intake helps to synchronize the internal biological clock, also known as the circadian cycle. When these rhythms are disrupted (screens, stress, jet lag…), sleep becomes lighter and fragmented. 

By restoring this natural balance, collagen helps to regain nights aligned with the body's true needs.

🧘🏻‍♀️Hormonal mechanisms promoting quality sleep

Beyond melatonin, collagen contributes to a better overall balance of the nocturnal hormonal system. It can help to:

• Reduce cortisol, the stress hormone, often responsible for insomnia or early awakenings.

• Support serotonin secretion, an essential neurotransmitter for well-being and a direct precursor of melatonin.

Result : a calmer mind, a relaxed body, ready to regenerate deeply.

For women going through menopause, collagen for menopause can also offer specific benefits.

Collagen Absolute – The ritual that takes care of your nights ✨

Formulated from hydrolyzed marine collagen and elastin, the formats of our Absolu de Collagène concentrate the patented complex COLLACTIVE™, in biomimetic proportions identical to those of human skin. But their benefits do not stop at skin beauty.

Thanks to their natural richness in glycine, a key amino acid in sleep regulation, these formulas also act to support more peaceful and restorative nights.

💊 Tablet format

A structured routine for:
• Stimulate the natural production of collagen and glycine
• Promote relaxation at the end of the day
• Strengthen skin and connective tissues, including during sleep

Dosage: 2 to 4 tablets in the morning – or in the evening for a targeted effect on sleep – in a 3-month course

🥤 Format shots

Ready-to-drink and highly absorbable, these concentrates offer a fast-acting effect on relaxation and nighttime regeneration:
• Perfect as an evening ritual to prepare the body for rest
• Bioavailable glycine to facilitate falling asleep and prolong deep sleep phases

Dosage: 1 shot per day, pure or diluted, in a 28-day course renewable

🌿 An intelligent duo to adapt your routine according to your needs, while optimizing sleep quality and nighttime cellular regeneration, when collagen works at its full potential.

Optimal bioavailability for targeted action

Among the different existing forms, marine collagen stands out for its very high bioavailability. 

Obtained from marine sources, it is easily absorbed by the body, making it an ideal choice for quick and lasting effectiveness. 

Its natural richness in glycine makes it a valuable ally to promote relaxation and improve sleep quality.

Purer, more digestible, more effective

Compared to bovine or porcine collagen, marine collagen is often purer, better tolerated, and presents fewer risks of allergic reactions. 

It is also derived from hydrolyzed collagen peptides, which facilitates its passage into the blood and its rapid integration into biological processes, particularly those related to nighttime relaxation.

🌙 Why take it in the evening?

Taking marine collagen at the end of the day or just before bedtime allows you to take advantage of its relaxing effects at the most opportune time. 

Thanks to glycine, it helps to reduce body temperature, an essential signal to trigger deep sleep, and to induce a calm state conducive to a restorative night. Integrated into a wellness routine, it becomes a true ritual of nighttime regeneration.

Dosage and usage recommendations

It is recommended to consume about 2 grams of collagen per day to achieve optimal results. Hydrolyzed collagen powders can be easily incorporated into drinks or meals for both convenient and effective consumption.

Dietary supplements and optimal absorption

For optimal assimilation, it is recommended to consume collagen on an empty stomach. This promotes better absorption by the body. The collagen supplements from D-LAB NUTRICOSMETICS are formulated for maximum absorption and proven effectiveness.

Synergy with other sleep-promoting assets

Collagen can be combined with other sleep-promoting ingredients, such as melatonin, magnesium, and plant extracts like chamomile and valerian. This synergy helps optimize the beneficial effects on sleep quality.

The role of sleep in skin collagen production

Quality sleep promotes the production of skin collagen, which is essential for maintaining the skin's elasticity and firmness. Cellular regeneration is optimized during the night, allowing for better tissue repair.

Improvement of skin elasticity

Regular intake of collagen, combined with quality sleep, can improve skin elasticity, thereby reducing the appearance of wrinkles and fine lines. Anti-aging collagens are particularly effective in achieving these results.

Wrinkle reduction and smoothing effect

Collagen helps reduce the depth of wrinkles and smooth the skin. Well-rested and regenerated skin thanks to quality sleep appears younger and more radiant.

Summary of the benefits of collagen for sleep

Collagen plays a crucial role in improving sleep quality by promoting falling asleep, reducing nighttime awakenings, and increasing deep sleep phases. 

It also acts on hormonal regulation, notably by stimulating the production of melatonin.

Importance of the quality of the chosen products

It is essential to choose high-quality collagen products, like those offered by D-LAB NUTRICOSMETICS. 

The brand's products are made in France with ingredients derived from Green Tech, ensuring naturalness and effectiveness. To find out which collagen to choose for your treatment, consult our recommendations.

Recognized scientific sources

• Asserin J, et al. The effect of oral collagen peptide supplementation on skin hydration and dermal collagen network: evidence from an ex vivo model and randomized, placebo-controlled clinical trials. J Cosmet Dermatol. 2015;14(4):291-301.
• Zague V. A new perspective on the effects of collagen hydrolysate intake on skin properties. Arch Dermatol Res. 2008;300(9):479-483.
• Proksch E, et al. Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis. Skin Pharmacol Physiol. 2014;27(3):113-119.
• Inoue N, Sugihara F, Wang X. The ingestion of bioactive collagen hydrolysates improves facial skin hydration and elasticity and reduces signs of facial aging in a randomized, double-blind, placebo-controlled clinical study. J Sci Food Agric. 2016;96(12):4077-4081.