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GLYCINE
AMINO ACID FOR ANTI-AGING & CELLULAR METABOLISM
Presented by Jn Beauty Solutions®

In the world of supplements and anti-aging therapies, Glycine stands out as a “silent hero.” As the simplest amino acid in structure, glycine participates in most of the key processes in the body: from building collagen to regulating sleep, providing powerful antioxidant effects, and activating the cellular self-cleaning mechanism (autophagy).

Not only is it a “building material,” glycine is also a molecule that regulates the entire biological system, especially when combined with N-acetylcysteine (NAC) in the GlyNAC formula — one of the most promising anti-aging therapies available today.

This article provides a comprehensive overview, based on scientific evidence, of Glycine: from its history and mechanisms to its practical applications (oral and intravenous).

1. OVERVIEW OF GLYCINE
Glycine (C₂H₅NO₂, MW: 75.07 g/mol) is the simplest amino acid among the 20 amino acids that make up proteins, with an R-group consisting of only one hydrogen atom.

Although classified as a non-essential amino acid, Glycine often becomes conditionally essential in many physiological and pathological situations, when demand exceeds the body’s endogenous synthesis capacity (in older adults, high oxidative stress, metabolic disorders).

Core Biological Roles:
• Main component of collagen (~35%).
• Precursor for glutathione (GSH) – the body’s most powerful endogenous antioxidant.
• Participates in one-carbon metabolism.
• Inhibitory neurotransmitter in the central nervous system.
• Regulates sleep, inflammation, and aging.
Glycine is not only a “building material” but also a molecule that regulates the entire biological system.

2. RESEARCH HISTORY
• 1820: Henri Braconnot (France) isolated glycine from gelatin.
• 1838–1848: Confirmed to contain nitrogen; Jöns Jacob Berzelius named it “glycine.”
• 1858: Auguste Cahours determined its structure.
• 1953: The Miller-Urey experiment proved that glycine could form naturally under prebiotic conditions.
• 2000s–present: Focused research on GlyNAC (anti-aging), neurological and psychiatric roles, metabolism, and healthy lifespan extension.

3. BIOLOGICAL MECHANISMS OF ACTION
3.1 Structural Role – Collagen
Glycine occupies repeating positions in the Gly–X–Y chain, allowing the formation of a stable triple helix – the foundation for the durability of skin, tendons, joints, and connective tissues.

3.2 Enhanced Antioxidant Defense – Glutathione
Glycine is an essential component for GSH synthesis. When combined with NAC (which provides cysteine) in GlyNAC, GSH increases by ~164%, oxidative stress decreases by ~70–72%, and mitochondrial function improves significantly.
3.3 Neurological Regulation
- Acts as an inhibitory neurotransmitter via the glycine receptor (GlyR).
- Co-agonist of the NMDA receptor → supports memory, learning, and mental stability.

3.4 Sleep Regulation
Acts on the SCN region (biological clock), causing peripheral vasodilation → lowers core body temperature → increases deep sleep (slow-wave sleep) and reduces daytime fatigue.

3.5 Detailed Anti-Aging Mechanisms
GNMT Pathway (Methionine Restriction Mimetic) Glycine activates the enzyme GNMT → reduces excess methionine/SAM → decreases mTOR activation → increases autophagy and mitophagy, supporting cellular regeneration and clearance of damaged proteins. Sarcosine (a product of GNMT) also directly activates autophagy.

GlyNAC – Powerful Anti-Aging Formula Glycine + NAC:
- Restores endogenous GSH.
- Reduces inflammation (IL-6, TNF-α), insulin resistance, and DNA damage.
- Improves muscle strength, cognition, mitochondrial function, and multiple hallmarks of aging.

Systemic Effects Increases cellular energy, protects vascular endothelium, supports stem cells, and improves healthspan (healthy lifespan).

4. MAIN CLINICAL BENEFITS
🧡Sleep: Reduces time to fall asleep, improves deep sleep quality, and decreases daytime fatigue.
🧡Anti-Aging: Increases autophagy, restores mitochondria, and reduces oxidative stress.
🧡Skin – Collagen – Joints: Increases collagen synthesis, improves skin elasticity, and supports joints.
🧡Metabolism: Increases insulin sensitivity, reduces triglycerides, and supports liver health.
🧡Neurological: Supports schizophrenia treatment (high doses) and improves cognition.
🧡Cardiovascular & Recovery: Reduces inflammation, protects endothelium, and enhances muscle recovery.

5. CLINICAL EVIDENCE
👉Sleep: Studies by Yamadera (2007) and Bannai (2012) – 3g glycine before bed significantly improves sleep quality (polysomnography).
👉GlyNAC: RCTs show GSH increase of 164%, oxidative stress reduction of 72%, and improvements in muscle strength, cognition, and multiple hallmarks of aging.
👉Psychiatric: Doses of 15–60g/day improve negative symptoms of schizophrenia.
👉Others: Benefits in metabolism and stroke recovery.

6. INTRAVENOUS GLYCINE APPLICATIONS
👉Role of IV Route:
Bypasses first-pass metabolism, rapidly increases plasma concentration, and provides higher efficacy for detoxification, acute antioxidant support, and recovery.

👉Potential Applications:
• Strong antioxidant effects (rapid GSH increase).
• Liver support (fatty liver), neurological health, and recovery from oxidative stress.
• Anti-aging IV protocols, mitochondrial therapy, and detox IV.

👉Comparison of Oral vs IV Feature Oral IV Bioavailability Moderate Very High Onset of Action Slow Fast Applications Sleep, maintenance Detox, anti-aging, recovery Dose Control Low Precise

👉Reference Dosages (only under medical supervision):
• Basic: 0.5–2g IV, infused slowly over 30–60 minutes.
• Advanced (anti-aging/detox): 1–3g, combined with Glutathione, Vitamin C, Magnesium, NAC.
• Surgical: 1.5% solution for endoscopic irrigation.

7. OVERALL RECOMMENDED DOSAGE
• Oral: Sleep – 3g before bedtime; Anti-aging – 5–15g/day (divided into 1–3 doses).
• IV: 0.5–2g (basic) or 1–3g (advanced protocols), as prescribed by a physician.

8. SAFETY PROFILE
Glycine is very safe at standard doses. Side effects are rare and mild (nausea or mild digestive discomfort with high oral doses).
Notes: Do not use with clozapine. Use with caution in pregnant women or patients with severe psychiatric conditions. IV administration should only be performed in a medical setting.

9. OPTIMAL COMBINATION RECOMMENDATIONS
• Anti-Aging: Glycine + NAC (GlyNAC).
• Sleep: Magnesium glycinate.
• Skin & Collagen: Collagen peptides + Vitamin C.
• Energy: Creatine + Omega-3.

Glycine is a small molecule but plays an extremely important foundational role in biology, tightly connecting structure (collagen), antioxidant defense (GSH), neurology (GlyR, NMDA), and anti-aging (GNMT + autophagy + GlyNAC).

With increasingly strong scientific evidence, especially in GlyNAC therapy, Glycine is becoming a “core molecule” in modern longevity and metabolic optimization strategies.

Professional Recommendations: Oral use is suitable for long-term application for sleep and maintenance. Intravenous administration should be performed in a medical environment to achieve optimal efficacy and safety. Personalize dosage and protocols according to your specific health goals.

JN Beauty Solutions®
Beauty From Science

THE LIFE SUSTAINING TECHNOLOGY
JN-LSS2020 - JN Life Sustaining System

🔵SUMMARY
At JN Beauty Solutions™, we believe that pure, natural ingredients and scientifically proven therapies form the core foundation of professional skincare. With over 20 years of experience in research, development, and application of cosmeceuticals, we always prioritize combining superior, stable, and clinically supported active ingredients into our products to deliver real, safe, and long-lasting results.

JN-LSS2020 (Life Sustaining System) – the Skin Life Sustaining Technology – is a groundbreaking research achievement built upon advanced Nano Transdermal Delivery Technology combined with Active Plus Advanced Formulae. This technology creates a comprehensive skin nourishment system that repairs damaged skin structures at the cellular level, maintains skin vitality, and enhances the skin’s long-term self-repairing capacity.

The technology is specifically optimized for Fitzpatrick Skin Types III–IV – the most common skin types among Asian populations and medium to dark skin tones.

The Fitzpatrick Skin Type Scale is the international gold standard developed by Dr. Thomas B. Fitzpatrick in 1975. It classifies skin based on natural skin color and its reaction to ultraviolet (UV) radiation. Skin Types III–IV tan easily but are highly prone to hyperpigmentation, melasma, and post-inflammatory pigmentation caused by UV exposure (photoaging). JN-LSS2020 has been validated through thousands of real-world cases since 2020, delivering clear clinical results in treating melasma due to aging, skin rejuvenation, texture improvement, and wrinkle reduction, particularly in this skin type group.

🔵TREATMENT PHILOSOPHY OF JN BEAUTY SOLUTIONS®
JN Beauty Solutions® is a pioneer in applying the comprehensive skincare treatment cycle “Nourish – Restore – Treat – Improve – Nourish” since the early 2000s.

We believe that damaged skin is like a body that is starving and thirsty. One cannot force aggressive treatment when the skin lacks sufficient strength. Therefore, we have developed the following logical treatment cycle:

• Nourish: Supply essential nutrients (Amino Acids, Vitamins, Stem Cell Extracts…) to provide skin cells with energy and a solid foundation.
• Restore: Repair the skin barrier, regenerate intercellular lipids, and reduce chronic inflammation.
• Treat: Use potent targeted actives (Tranexamic Acid, Niacinamide, MAP Vitamin C…) to address the root causes of skin concerns.
• Improve: Activate strong regeneration to deliver visibly brighter, smoother, firmer skin with reduced wrinkles and even skin tone.
• Nourish Long-term: Continuously maintain skin health, enhance self-repair capacity, and prevent recurrence.

The core spirit of JN-LSS2020: Nourishment is the foundation, restoration is the key, treatment must be applied at the right time, and long-term maintenance is the ultimate goal.

🔵METHODOLOGY & OBJECTIVES
JN-LSS2020 is formulated based on the Natural Ingredients Base – a blend of highly pure ingredients with superior pe*******on capability. Thanks to the Nano Transdermal Delivery system, active ingredients rapidly pe*****te into the dermis without leaving any greasy or sticky residue on the epidermis. This system minimizes trans epidermal water loss (TEWL) and ingredient waste, ensuring optimal efficacy, economical use, and reduced risk of irritation.

Scientific studies indicate that approximately 80% of aesthetic dermatological concerns (pigmentation disorders, collagen deficiency, aging, inflammation, etc.) stem from overall or localized skin aging, especially photoaging caused by cumulative UV exposure. JN-LSS2020 applies the principle of addressing root causes while simultaneously treating symptoms, delivering faster visible results and effectively preventing recurrence — especially pigmentation disorders and chronic inflammation in Fitzpatrick Skin Types III–IV.

The technology delivers a carefully selected blend of Amino Acids, Peptides, Stem Cell Extracts, Vitamins, and Minerals, combined with targeted actives for specific concerns:
• Pigmentation disorders: Tranexamic Acid, Alpha Arbutin, Kojic Acid…
• Inflammation: Niacinamide, Bio-Sulfur, Vitamin B…
• Multi-layer aging: Hyaluronic Acid, Matrixyl®3000, Argireline®, Stem Cell Extract, DNA…
The entire blend is extracted from natural sources using Advanced Extraction Technology and Nano Transdermal Delivery, creating a powerful synergistic effect that is both safe and fast-acting.

🔵DETAILED PRINCIPLES AND MECHANISM OF ACTION
JN-LSS2020 operates based on the principle of “Maintaining & Restoring Skin Cell Life” through three simultaneous layers:
Layer 1. Deep and Sustained Pe*******on
Layer 2. Multi-Layer Synergistic Action (Synergistic Multi-Action)
Layer 3. Root-Cause Restoration & Recurrence Prevention

🌀1. Core Principle:
Natural Ingredients Base + Nano Transdermal Delivery The system uses Phosphatidyl Choline (PC) as the primary carrier, combined with Nano technology (