L-Glycine
Also Known As: Aminoacetic Acid, Gly, The “Collagen Builder”
Compound Type: Amino Acid / Structural Precursor / Sleep Aid
L-Glycine is the simplest amino acid, yet it plays the most critical role in physical Penis Enlargement. It is the primary building block of Collagen. In fact, every third amino acid in a collagen molecule must be Glycine.
Why does this matter? Because the “limiter” of your penis size is the Tunica Albuginea—the tough, fibrous sheath that holds the erection in. To grow larger, you must stretch this sheath and rebuild it. You cannot rebuild it without Glycine.
How Does Glycine Affect Penis Size?
Glycine works on the Structural level. While Citrulline fills the balloon with air (blood), Glycine provides the rubber to make the balloon bigger. Without enough Glycine, tissue repair stalls, and gains hit a plateau.
The Science: The Tunica & HGH
1. Tunica Remodeling (Collagen Synthesis):
The Tunica Albuginea is composed almost entirely of Type I and Type III collagen. When you perform PE exercises (Hanging/Extending), you are creating micro-tears in this collagen matrix. Glycine is the rate-limiting nutrient for repairing this tissue. High saturation of Glycine ensures the tissue heals back thicker and more elastic.
2. The Sleep-Growth Loop:
Glycine is a proven sleep aid. Studies show that 3g of Glycine before bed lowers core body temperature and induces deeper REM sleep. Since the majority of tissue growth happens during sleep (via HGH release), Glycine hits a “double whammy” for recovery.
3. Erectile Synergy:
A US Patent actually exists for the combination of Glycine and Arginine to treat erectile dysfunction, citing that Glycine potentiates the vasodilating effects of Nitric Oxide boosters.
✔ The Verdict: STRUCTURAL ESSENTIAL
The “Bricks” for Growth. If you are doing manual exercises (Stretching/Hanging), Glycine is mandatory. You cannot build a bigger house without bricks. It is cheap, tasteless, and scientifically proven to aid collagen synthesis and deep sleep recovery.
3g – 5g
Powder (Tasteless)
Take 30m before bed
Safety Profile & Side Effects
- Drowsiness: Powerful sedative effect (take at night).
- Mild stomach upset (rare).
- Safe: Generally recognized as safe (GRAS) even at high doses.
- Clozapine: May decrease effectiveness of certain antipsychotic meds.
- Otherwise very safe to stack.
Data source: WebMD / JPHS


