Fo-Ti and Other "Ancient" Hair Growth Ingredients: Do They Really Work?

Open TikTok or Instagram right now and you'll find it: a jar of dark, syrupy root extract, a bottle of rosemary-infused oil, or a spoonful of amla powder, all promised to do what minoxidil and finasteride supposedly can't. Fo-Ti, also known as He Shou Wu, has become one of the most talked-about "ancient" hair growth ingredients online, alongside old favorites like rosemary, bhringraj, amla, and ginseng. The pitch is simple: these ingredients have been used for centuries, so they must work. But centuries of use and clinical proof are two very different things, and it's worth separating the folklore from what research actually supports.

In this guide, we'll look at what Fo-Ti actually is, what the science says about it and other traditional hair growth ingredients, and how to think about building a hair care routine that leans on real evidence rather than viral claims.

What Is Fo-Ti (He Shou Wu), Exactly?

Fo-Ti is the common name for the root of Polygonum multiflorum, known in Traditional Chinese Medicine as He Shou Wu. According to legend, the herb takes its name from a man who reportedly regained dark hair, energy, and vitality after consuming the root, and it has been used for generations in Chinese herbal medicine as a tonic for the hair, kidneys, and liver. It's typically taken as a powder, tea, or capsule, and is often included in supplement blends marketed for hair growth and reversing premature graying.

Proponents claim Fo-Ti nourishes the blood, supports the kidneys and liver according to Traditional Chinese Medicine theory, and helps restore hair pigment and thickness over time. These are traditional explanations rather than mechanisms confirmed in modern clinical research, which is where things get more complicated.

What Does the Research Actually Say About Fo-Ti?

Most of the evidence for Fo-Ti's effect on hair comes from cell studies and animal models, not large human trials. A handful of laboratory studies suggest that compounds in the root may stimulate hair follicle cells or influence pigment-producing cells, but this kind of early-stage research doesn't reliably translate into real-world results on the scalp. There is currently no well-designed, placebo-controlled human study confirming that Fo-Ti supplements meaningfully regrow hair or reverse gray hair.

There's also a safety issue worth knowing about: Fo-Ti has been linked in medical case reports to instances of liver injury, particularly with unregulated or high-dose supplements. This doesn't mean everyone who uses it will have a problem, but it's a real enough concern that anyone considering a Fo-Ti supplement should talk to a doctor first, especially if they have existing liver conditions or take other medications.

The honest verdict: Fo-Ti has an interesting history and some promising early-stage research, but it isn't currently backed by strong human clinical evidence for hair growth, and it carries a safety profile that deserves caution.

Rosemary: The Ancient Herb With the Strongest Clinical Backing

Of all the traditional hair growth ingredients getting attention right now, rosemary has some of the more encouraging research behind it. Rosemary has been used in Mediterranean and Middle Eastern traditions for centuries, valued for its scent and its reputed effects on circulation and hair. In 2015, a small randomized trial published in the journal Skinmed compared rosemary oil against 2% minoxidil in people with androgenetic alopecia over six months and found a comparable improvement in hair count between the two groups, with rosemary users reporting less scalp itchiness.

That's a genuinely interesting result, but it's important to read it correctly: this was one small study, not a large body of confirmatory research, and it compared rosemary to a low-strength minoxidil dose rather than a placebo. Still, unlike many "ancient" ingredients, rosemary has at least one legitimate head-to-head human trial behind it, along with laboratory research suggesting its compounds have antioxidant and anti-inflammatory properties that could support a healthier scalp environment.

If you want a practical way to work rosemary into your routine, our Collagen Biotin Hair Mask is formulated with rosemary extract alongside biotin and collagen to help nourish strands and support scalp condition, rather than relying on rosemary alone.

Amla: Ayurveda's Vitamin C-Rich Staple

Amla, or Indian gooseberry, is a cornerstone of Ayurvedic hair care, traditionally pressed into oils or used as a rinse. It's genuinely one of the richest natural sources of vitamin C, which plays a role in collagen production and antioxidant defense, both relevant to healthy hair strands and scalp tissue. Ayurvedic tradition credits amla with strengthening roots, adding shine, and slowing premature graying.

The catch is that most of this comes from centuries of traditional use and general nutritional science about vitamin C, rather than dedicated clinical trials testing amla specifically for hair growth. That doesn't make it useless, antioxidants and vitamin C support overall hair health, but it does mean the "amla regrows hair" claim is more extrapolation than proven fact.

Bhringraj: Ayurveda's "King of Hair"

Bhringraj (Eclipta alba) is sometimes called the "king of hair" in Ayurvedic texts and is a common ingredient in traditional hair oils across South Asia. It's traditionally used to darken hair, reduce shedding, and calm an irritated scalp.

Some animal studies have shown bhringraj extracts can increase the number of hair follicles entering the growth phase in mice, which is a promising early signal. However, there isn't yet solid, large-scale human clinical evidence proving the same effect in people. As with several ingredients on this list, bhringraj has a long track record of traditional use and some interesting preliminary science, but not the level of proof that would let anyone confidently call it a regrowth treatment.

Ginseng and Fenugreek: Roots and Seeds With Growing Evidence

Ginseng has been used in East Asian medicine for thousands of years, and modern research has taken a genuine interest in it. Compounds called ginsenosides have been shown in cell and animal studies to encourage proliferation of dermal papilla cells, the cells at the base of hair follicles responsible for growth. Some small human studies using ginseng-containing formulations have reported improvements in hair density, but because ginseng is usually combined with other actives in these formulas, it's hard to credit ginseng alone for the results.

Fenugreek seeds, long used in South Asian and Middle Eastern hair care, contain compounds like diosgenin along with protein and nicotinic acid. Traditional use credits fenugreek with strengthening strands and reducing breakage. A few small studies on fenugreek-based formulations have shown improvements in hair thickness and shedding, but again, isolated, rigorous trials on fenugreek by itself are limited.

Saw Palmetto: Old Remedy, More Modern Mechanism

Saw palmetto isn't part of Asian or Ayurvedic tradition, it comes from indigenous use of the saw palmetto berry in North America, but it's old enough and popular enough to belong in this conversation. Its proposed mechanism is more modern: saw palmetto is thought to block the same enzyme that converts testosterone into DHT, the hormone strongly linked to androgenetic hair loss, similar in concept to how the prescription drug finasteride works, though far less potent.

A few small studies have shown modest improvements in hair density with saw palmetto extract in people with mild pattern hair loss. It's one of the more mechanistically plausible ingredients on this list, but the research is still limited to small sample sizes and short study periods.

Why "Ancient" Doesn't Automatically Mean "Effective"

Traditional use tells us an ingredient has been around for a long time and that people believed it worked, not that it has been tested against a placebo in a properly controlled trial. A few things are worth keeping in mind whenever you come across a viral claim about an ancient hair growth ingredient.

• Cell and animal studies are a starting point, not proof of results on the human scalp.
• Small, uncontrolled, or industry-funded studies can overstate real-world benefits.
• Hair growth is naturally slow and cyclical, so people can credit an ingredient for changes that would have happened anyway.
• Ingredients are often tested in combination formulas, making it hard to know what's actually doing the work.
• Supplements aren't regulated the same way medications are, so purity, dosage, and safety data can vary widely between brands.

None of this means traditional ingredients are worthless. Many, like rosemary, ginseng, and saw palmetto, have real, plausible science behind them. It just means "used for a thousand years" is a starting point for curiosity, not a substitute for evidence.

Building a Hair Growth Routine That's Actually Backed by Evidence

If you're dealing with noticeable thinning or shedding, the most evidence-backed step is talking to a dermatologist, since options like minoxidil and finasteride have the strongest clinical data behind them for androgenetic hair loss, and a professional can also rule out causes like thyroid issues, iron deficiency, or telogen effluvium that no topical ingredient will fix on its own.

Alongside that, a supportive routine that keeps hair and scalp in good condition makes it easier for any growth you do achieve to actually show. That means gentle, sulfate-conscious cleansing, like our Biotin Thickening Shampoo, which is formulated to support fine or thinning strands without stripping the scalp; regular conditioning treatments such as the rosemary and biotin-enriched Collagen Biotin Hair Mask to reduce breakage and improve elasticity; and a lightweight finishing step like our Smoothing Hair Serum with macadamia oil and vitamin E to protect strands from daily damage and frizz. You can browse our full range in the hair care collection if you want to put together a complete routine.

None of these products claim to be a cure for hair loss, and no honest hair care brand should tell you otherwise. What they can do is support healthier-looking, better-conditioned hair while you address the bigger picture with proven treatments and, where needed, a dermatologist's input.

The Bottom Line

Fo-Ti, rosemary, amla, bhringraj, ginseng, fenugreek, and saw palmetto all have genuinely interesting stories behind them, and a few, especially rosemary and saw palmetto, have real if limited clinical research to back up the hype. Others, like Fo-Ti, rely more on tradition and early-stage lab research than proof that they regrow hair in people, and come with safety caveats worth taking seriously. The most reliable approach is to enjoy these ingredients for what they can offer, antioxidant support, a healthier scalp environment, and centuries of interesting history, while relying on dermatologist-backed treatments for any real hair loss concerns.