You ever notice how some height supplements in the U.S. get talked about like they’re magic beans, while others just... vanish into the noise? That’s exactly where Nubest Tall and Growth Factor Plus land—right in the middle of that hype vs. reality zone. Now, these two get compared a lot, especially by folks looking for one last shot at getting taller—teens before their growth plates close, and adults still hoping for that elusive extra inch.
But here’s the tricky part: they’re not even designed for the same stage of life.
Let’s walk through what actually sets these two apart—ingredient by ingredient, promise by promise—without getting swept up in the marketing. If you're trying to figure out which one makes more sense for your age, your goals, or your wallet, this is where things finally get clear.
First off, the U.S. market for height pills is kinda wild. There's a mix of teenage insecurity, adult wishful thinking, and a whole lot of misinformation. You’ll find parents buying growth pills off Amazon for their kids before checking with a pediatrician, and adults hoping HGH boosters will undo decades of closed growth plates.
In reality, most over-the-counter height supplements in the U.S. aren’t FDA-approved for increasing height—they’re just classified as dietary supplements. That means companies can legally sell them without proving they work, as long as they don’t make medical claims. According to the NIH and FDA, they can be sold, but not advertised as guaranteed solutions for height.
So yeah, the short version? They're allowed—but that doesn’t mean they’re effective across the board. Especially not for adults.
If you're under 18 and your growth plates haven’t closed yet (which a doctor can confirm), Nubest Tall is one of the better-known natural options out there. It’s made by Nubest Inc., a California-based company, and what stands out is that it doesn't touch HGH at all. Instead, it leans into natural growth support—think calcium (Nano Calcium, supposedly more absorbable), vitamin D3, collagen type II, and a blend of herbal extracts like Ginkgo Biloba and Poria Cocos.
What I’ve noticed? A lot of American parents buy it for preteens and early teens hoping to give them a nutritional edge. There’s no prescription required, and it ticks the “natural” checkbox. But that also means: it won’t force growth, it just supports it while the body is still growing.
Most U.S. reviews on Amazon are positive—though, if you dig deeper, it’s clear some people expect instant results and end up frustrated. Which, honestly, is a theme you’ll see over and over in this space.
Now, Growth Factor Plus is a whole different animal. It’s built specifically for adults—like, over-18-and-your-growth-plates-are-done type of adults. Manufactured by Grow Taller Supplement LLC, this one’s been around for years and has built a bit of a cult following in the adult biohacking and anti-aging forums.
Here’s where it gets bold: it claims to stimulate natural HGH production using amino acids like L-Arginine, L-Ornithine, and L-Lysine, plus proprietary blends that supposedly affect the pituitary gland. It’s all about nudging your body’s natural growth hormone (HGH or somatotropin) without using synthetic injections.
That said—HGH isn’t some miracle switch, especially after puberty. While amino acids may influence HGH levels in some cases (like in this clinical context), they rarely result in vertical growth unless spinal cartilage regeneration or posture change is part of the equation.
Still, for adults hoping for subtle gains—maybe a small change in spinal decompression, posture, or disc hydration—it’s one of the few options out there.
FeatureNubest TallGrowth Factor PlusTarget AgeTeens (pre-growth plate closure)Adults (post-puberty)Main ApproachBone nourishment + herbal supportHGH stimulation + amino acid blendCore IngredientsNano Calcium, Vitamin D3, Collagen Type II, HerbsL-Arginine, L-Ornithine, Pituitary Extract, L-LysineHGH-related SupportNoneYesHerbal ExtractsYesNoSynthetic AdditivesMinimalIncludes syntheticsFDA ApprovalNot approved for height growthNot approved for height growth
So if you're comparing formulas? One’s a nutrition-forward teen booster, the other is a hormone-adjacent adult option. They're not trying to do the same job.
Here's where things get a little less predictable.
From scanning hundreds of reviews across Amazon USA, Trustpilot, and Reddit threads, what’s clear is this: you’re not likely to see dramatic height increases with either product—but that doesn’t mean they do nothing.
That said—there’s a difference between biological growth and postural or disc-related improvements. And the second one’s way more common in adults.
Neither product is FDA-approved to increase height, and neither should be treated like medication.
Nubest Tall is generally well-tolerated—especially since it’s mostly vitamins, minerals, and herbs. But it’s still possible to have allergic reactions to things like Ginkgo Biloba or herbal fillers. The bigger concern is using it after growth plate closure, which turns it into just another supplement.
Growth Factor Plus is a bit more intense—it includes ingredients that may impact hormone regulation, so it’s not ideal for anyone with pituitary issues, hormone-sensitive conditions, or liver problems. Doctors from the American Academy of Family Physicians would likely recommend getting medical clearance before starting anything in the HGH-support category.
Also worth noting: no supplement can reopen closed growth plates. That’s biology, not marketing.
Let’s talk cost, because this part actually catches a lot of people off guard.
So you’re looking at $600+ for a 6-month cycle of Growth Factor Plus, which is… not pocket change. For that reason alone, it makes sense to match your choice with your stage of life. It’s not just about “what works better”—it’s also “what’s realistic to invest in.”
Not into pills? You’re not alone. A lot of Americans pivot to stretching routines (think yoga, pilates, or decompression exercises), posture correction, and sleep discipline. That last one gets overlooked way too often, by the way. Growth hormone naturally spikes during deep sleep, especially in younger bodies.
A few alternatives I’ve seen work in practice:
These don’t promise height—they improve the environment for your body to do what it’s capable of. Which, in many cases, is the best you can ask for.
So here’s what it comes down to:
Neither is a silver bullet. And neither will make someone 6 inches taller overnight—despite what some YouTube testimonials might claim. But matched to the right person, in the right window of time, they’re not useless either.
The trick? Knowing whether you're actually in that window—and what kind of results you’re chasing. Because once the biology’s done, it’s not about how to grow taller anymore. It’s about how to live taller.
