marlx
Iron
- Joined
- Jan 14, 2026
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I’ve been digging into how growth plates work and whether it’s really true that once they’re “closed,” you can’t grow any taller. Here’s the foundation I built by asking simple questions:
Basically, this means that the term “closed” growth plates doesn’t necessarily mean zero potential to grow taller. It means natural growth is over without intervention. But with the right hormonal environment—blocking estrogen, boosting GH/IGF-1, and activating osteoblasts—there might be a way to push for longitudinal bone growth after what’s medically considered closure.
Technically, if someone combined aromatase inhibitors (like anastrozole), SERMs (like clomiphene or tamoxifen), HGH, IGF-1 LR3, and possibly PTH analogs, they could create the conditions for a growth spurt with “closed” growth plates.
This is all theoretical, and obviously comes with big safety concerns. But it challenges the dogma that height can’t increase after puberty ends.
I’m curious—what do you think about this?
(This information is certainly not new, but I haven't found one civilized thread about the topic)
- Growth plates mostly close between ages 15–18, but some cartilage residue can remain into the mid-20s. (Yes)
- That leftover cartilage isn’t enough on its own to cause natural longitudinal bone growth. (Yes)
- Estrogen is the main hormone that causes growth plates to close. (Yes)
- Blocking estrogen can keep growth plates open longer—but not forever, because estrogen is also crucial for bone health. (Yes)
- Growth stops at the end of puberty mainly due to too little active cartilage combined with normalized levels of growth hormone (GH), IGF-1, and osteoblast activity. (Yes)
- So if you blocked estrogen and provided GH, IGF-1, and stimulated osteoblasts at the right levels, you could theoretically induce bone growth from that cartilage residue—even after puberty. (Yes)
Basically, this means that the term “closed” growth plates doesn’t necessarily mean zero potential to grow taller. It means natural growth is over without intervention. But with the right hormonal environment—blocking estrogen, boosting GH/IGF-1, and activating osteoblasts—there might be a way to push for longitudinal bone growth after what’s medically considered closure.
Technically, if someone combined aromatase inhibitors (like anastrozole), SERMs (like clomiphene or tamoxifen), HGH, IGF-1 LR3, and possibly PTH analogs, they could create the conditions for a growth spurt with “closed” growth plates.
This is all theoretical, and obviously comes with big safety concerns. But it challenges the dogma that height can’t increase after puberty ends.
I’m curious—what do you think about this?
(This information is certainly not new, but I haven't found one civilized thread about the topic)

