What it is: L-Arginine is a semi-essential amino acid that plays a crucial role in nitric oxide production and protein synthesis.

How it works: L-Arginine increases nitric oxide levels in your bloodstream, which improves blood flow and vasodilation. This enhanced circulation delivers more nutrients to muscles and signals the pituitary gland to release HGH. Studies show that arginine supplementation can increase HGH levels by up to 100% during sleep.

Scientific backing: A 2016 study in the Journal of Sports Science & Medicine found that L-Arginine supplementation significantly increased HGH secretion during rest periods, particularly in individuals engaged in strength training.

Benefits:

• Stimulates HGH release
• Improves blood flow and oxygen delivery
• Enhances muscle recovery
• Supports erectile function and blood vessel health
• Promotes fat loss through improved metabolism

What it is: L-Glutamine is the most abundant amino acid in your body, comprising about 60% of all amino acids in muscle tissue.

How it works: Glutamine is essential for muscle recovery and plays a critical role in HGH secretion. It supports the gut barrier function, which is crucial for nutrient absorption, and has been shown to stimulate growth hormone release in certain conditions. When you exercise, glutamine stores are depleted, and supplementation helps restore these levels, enhancing recovery.

Scientific backing: Research published in the American Journal of Clinical Nutrition demonstrates that glutamine supplementation increases HGH levels and supports lean muscle mass retention, particularly during intense training periods.

Benefits:

• Accelerates muscle recovery post-workout
• Supports immune function
• Improves gut health and nutrient absorption
• Enhances HGH secretion during sleep
• Reduces muscle soreness and fatigue
• Supports protein synthesis

What it is: GABA (Gamma-Aminobutyric Acid) is a non-essential amino acid and inhibitory neurotransmitter that plays a central role in nervous system function.

How it works: GABA is one of the most powerful natural HGH stimulators available. It works by inhibiting somatostatin, a hormone that suppresses HGH release. By reducing somatostatin levels, GABA removes the “brakes” on HGH secretion, allowing your pituitary gland to produce more growth hormone. Additionally, GABA promotes relaxation and improves sleep quality, which is when most HGH is naturally secreted (70% of daily HGH is released during deep sleep).

Scientific backing: A landmark study published in Amino Acids found that a single 3-gram dose of GABA increased HGH levels by an average of 400%! Even the smaller 100mg dose in GenF20 Plus contributes significantly to HGH stimulation.

Benefits:

• Dramatically increases HGH release (up to 400% in studies)
• Promotes deeper, more restorative sleep
• Reduces anxiety and stress (both inhibit HGH)
• Improves recovery and muscle growth
• Supports nervous system health
• Reduces cortisol (the HGH antagonist)

What it is: L-Glycine is the simplest amino acid and plays essential roles in sleep, recovery, and HGH production.

How it works: Glycine is a neurotransmitter that promotes sleep quality by regulating body temperature and calming the nervous system. Since the majority of HGH secretion occurs during deep sleep, optimizing sleep quality is critical for maximizing HGH production. Glycine also supports creatine production, which is essential for muscle energy and growth.

Scientific backing: Research in Sleep and Biological Rhythms shows that glycine supplementation significantly improves sleep quality and reduces the time it takes to fall asleep, leading to better HGH secretion patterns.

Benefits:

• Improves sleep quality and depth
• Shortens time to fall asleep
• Supports brain health and cognitive function
• Enhances HGH secretion during sleep phases
• Supports collagen production for joint health
• Reduces inflammation

Colostrum is the nutrient-dense fluid produced by mammals immediately after birth. GenF20 Plus includes colostrum because it contains naturally occurring growth factors including:

• IGF-1 (Insulin-Like Growth Factor-1): Directly stimulates muscle growth and protein synthesis
• Growth hormone itself: Further boosts your body’s HGH levels
• Immunoglobulins: Support immune function and recovery

Bovine colostrum has been extensively studied and shown to improve athletic performance, increase lean muscle mass, and accelerate recovery in multiple clinical trials.