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Clavicle growth plates = untapped width potential
Most people don’t realize this, but the clavicles are one of the last bones to finish developing. The growth plates at the sternal end (the part near the center of your chest) don’t fully fuse until around 23–25 years old. In some cases even later.
This matters because those plates respond to hormones like GH, IGF-1, and androgens. If you’re under 25 and your clavicular plates haven’t fused yet, it’s possible to get actual skeletal growth meaning your shoulders can get wider from bone, not just muscle.
Studies have shown that male clavicles still grow about 1.7 mm per year between 20 and 25. That might not sound like much, but combined with delts and scapular changes, it adds up visually. You can look structurally broader, not just bloated.
If someone hops on test, GH, or MK-677 + IGF-1 during that window, there’s a chance the clavicles respond. Especially if androgens raise local IGF-1 and GH levels. That’s why some dudes on gear in their early 20s suddenly look way wider their bones are actually growing.
This isn’t a meme or cope, there’s actual imaging and data behind it. That said, if your growth plates are already fused, NO amount of gear is going to lengthen the bone just inflate the muscle
How to read this X‑ray for clavicle growth plate stages (Schmeling classification):
Stage 1: no visible ossification center. The growth plate is still completely open.
Stage 2: ossification center appears, but no fusion yet.
Stage 3: partial fusion—growth plate progressively closing.
Stage 4: nearly complete union; the epiphyseal scar is still visible.
Stage 5: fully closed; the epiphyseal scar has disappeared.
These stages line up with age ranges in studies most males reach stage 4 by around 21 years, and earliest stage 5 observations occur at 26+
TLDR: clavicle growth plates fuse late, around 23–25. If you start hormones before that, you might gain permanent shoulder width structurally, not just from muscle. Let me know if you want studies or X-rays showing this.
//Law
Most people don’t realize this, but the clavicles are one of the last bones to finish developing. The growth plates at the sternal end (the part near the center of your chest) don’t fully fuse until around 23–25 years old. In some cases even later.
This matters because those plates respond to hormones like GH, IGF-1, and androgens. If you’re under 25 and your clavicular plates haven’t fused yet, it’s possible to get actual skeletal growth meaning your shoulders can get wider from bone, not just muscle.
Studies have shown that male clavicles still grow about 1.7 mm per year between 20 and 25. That might not sound like much, but combined with delts and scapular changes, it adds up visually. You can look structurally broader, not just bloated.
If someone hops on test, GH, or MK-677 + IGF-1 during that window, there’s a chance the clavicles respond. Especially if androgens raise local IGF-1 and GH levels. That’s why some dudes on gear in their early 20s suddenly look way wider their bones are actually growing.
This isn’t a meme or cope, there’s actual imaging and data behind it. That said, if your growth plates are already fused, NO amount of gear is going to lengthen the bone just inflate the muscle
How to read this X‑ray for clavicle growth plate stages (Schmeling classification):
Stage 1: no visible ossification center. The growth plate is still completely open.
Stage 2: ossification center appears, but no fusion yet.
Stage 3: partial fusion—growth plate progressively closing.
Stage 4: nearly complete union; the epiphyseal scar is still visible.
Stage 5: fully closed; the epiphyseal scar has disappeared.
These stages line up with age ranges in studies most males reach stage 4 by around 21 years, and earliest stage 5 observations occur at 26+
TLDR: clavicle growth plates fuse late, around 23–25. If you start hormones before that, you might gain permanent shoulder width structurally, not just from muscle. Let me know if you want studies or X-rays showing this.
//Law
