The Truth.
Through Research.

Guided by the best of science and herbalism to reveal the hair loss and hormonal treatment nature intended.

01.

Clinical studies

02.

Mechanism studies

03.

Additional benefits

01 — CLINICAL TRIAL RESULTS

In clinical trials with over 4,061 men and women, Stinging Nettle was shown to be as effective as leading FDA-approved hair and hormone drugs—Finasteride, Dutasteride, and Spironolactone—but without the side effects.

Men

543 patients found PRO 160/120* (incl. Nettle Root) as effective as Finasteride, the best FDA drug for hair loss and prostate*

* PRO 160/120 is a phytotherapeutic drug combining Urtica Dioica (Nettle Root) and Sabal (Saw Palmetto), tested directly against Finasteride. We reference its research to support our findings: both Finasteride and Nettle Root work the same way in the body, benefiting prostate and hair health. However, we exclude Saw Palmetto—our research and broader literature show Nettle is superior. We also replace their pill approach with our precise hot water extraction to unlock Nettle's full potency.

Men

* PRO 160/120 is a phytotherapeutic drug combining Urtica Dioica (Nettle Root) and Sabal (Saw Palmetto), tested directly against Finasteride. We reference its research to support our findings: both Finasteride and Nettle Root work the same way in the body, benefiting prostate and hair health. However, we exclude Saw Palmetto—our research and broader literature show Nettle is superior. We also replace their pill approach with our precise hot water extraction to unlock Nettle's full potency.

Men

620 patients found Stinging Nettle (‘Urtica dioica’) as an effective alternative to 5a-reductase inhibitors, such as Finasteride, the current best FDA drug for hair loss‡

‡ Just as Finasteride, originally developed for prostate issues, was later found to be the most effective drug for hair loss, we find that research on Nettle's prostate effects also strongly supports its potential for treating hair loss. That’s because both Finasteride and Nettle work the same way in the body—by inhibiting 5a-reductase. No one has yet directly made this correlation—until us—and this shared mechanism is why we cite these prostate studies for our product.

02 — MECHANISM STUDIES

Stinging Nettle was also clearly shown to contain compounds targeting five root causes of hair loss:

  • DHT: [1, 2, 3]

  • Inflammation: [1, 2, 3, 4]

  • Free Radical Damage: [1, 2, 3]

  • Poor Blood Flow: [1]

  • Stress: [1, 2]

DHT

In direct trials against Finasteride, Stinging Nettle (UD) was one of the most effective herbs to reduce DHT (via inhibiting 5a-reductase). DHT is a hormone that plays a major role in hair loss.

DHT

Stinging Nettle (UD/UDP/UDE) once again inhibits 5a-reductase, confirming the same mechanism of action as Finasteride, the most effective FDA-approved hair loss drug*

* Finasteride was originally discovered by Merck Pharmaceuticals as a treatment for prostate issues (benign prostatic hyperplasia). It was later found to be the best drug for hair loss because the same mechanism that helps with the prostate also promotes hair growth. Given the lack of direct hair growth studies, we reasonably rely on prostate treatment research because it demonstrates the same beneficial mechanism for hair growth.

DHT

Stinging Nettle (Urtica dioica) was found again to inhibit 5a-reductase, the enzyme responsible for producing DHT, a hormone significant in hair loss

Inflammation

Organic compounds from Stinging Nettle (Urticadioica L) were found to increase hair length. Reducing inflammation at the scalp is necessary to ensure hair growth

Inflammation

Polyphenols and flavonoids in Stinging Nettle (U. dioica) were confirmed to have ‘considerable anti-inflammatory and analgesic activities’

Inflammation

Nettle’s (‘UD’) flavonoids and polyphenols once again confirmed to elicit anti-inflammatory properties

Blood Flow

Stinging Nettle’s β-sitosterol compounds were shown to be comparable in effectiveness to Minoxidil, increasing hair growth and improving hair condition.

03 — ADDITIONAL BENEFIT STUDIES

Stinging Nettle, through balancing hormones, has also shown in studies to:

  • Increase libido

  • Improve fertility

  • Support nutrient partitioning

  • Reduce prostate size, erectile dysfunction, and premature ejaculation in men

  • Alleviate PCOS, and menopausal symptoms in women

  • Lower joint pain

  • Reduce fatigue

...along with other non-hormonal health benefits.

“We solved hair loss and hormonal imbalance by combining masterful herbalism with scientific precision. Like coffee beans for fatigue, or poppy flowers for pain, Stinging Nettle is nature’s lock-and-key solution for hair and hormonal health. Backed by rigorous scientific research, we guarantee real, lasting results—your hair grows, your hormones balance, or your money back. Simple.”

Davy Dawei Zhao

Political Philosophy, University of Oxford (MSc)
Commerce / LLB (Hons) / Arts (Hons)
— Founder, The BioHealth Company

One tonic. 
Fuller hair. More life.

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FAQs

When should I expect to see benefits?
Within 3 months, you should see significant hair growth in thinning areas. Hormonal benefits, reduced stress, less inflammation, better oxygenation, and improved libido, often start within the first 1–3 full daily servings. Men may also notice improvements in sexual function.

For best results, maintain a healthy diet and address nutrient gaps, particularly calcium. Optionally take a calcium + d3 supplement and/or multivitamin. Results may vary depending on individual health and consistent use.
Why do you offer a tonic and not a pill or powder?
Our research shows that a tonic is best for extracting the compounds targeting all root causes of alopecia hair loss and hormonal imbalance.

We’ve tested other viable methods, including pills, powders, and serums. Our discovery was that nothing comes close to the effectiveness of traditional hot water preparation. It's the exact reason why we use hot water to brew coffee on fresh beans rather than taking a coffee pill.
How exactly can one herb provide so many supportive functions?
Stinging Nettle is unique because its leaves, roots, and stems contain multiple bioactive compounds—lignans, sterols, polyphenols, flavonoids, polysaccharides, and coumarins—that naturally target the root causes of hair and hormonal health issues. These compounds evolved over millions of years to make Nettle perfectly suited for these problems—much like how coffee naturally boosts energy or poppies ease pain.

These powerful compounds aren’t found in everyday foods or typical supplements. We are the first to discover them, identify their benefits, and solve the alopecia hair loss & hormonal imbalance problem properly, and for good.
Why hasn’t anyone been able to discover this before you?
Most scientists missed this discovery due to a lack of nuance when interpreting scientific research. We combined deep study of the science with masterful herbalism, allowing us to discover novel insights, and spot where others went wrong.

For example, it’s often believed that DHT causes hair loss. However, we found that the real issue isn’t DHT itself, but how sensitive hair follicles are to DHT. Not everyone with high DHT loses hair: teenagers have high DHT but usually don’t lose hair, and women generally don’t lose hair due to DHT. Therefore, you do not have to remove DHT to stop hair loss; instead, you can repair the follicle's sensitivity to DHT, and in that case, prevent hair loss whilst still allowing hormones to be present.

By clarifying these misunderstandings, we made a breakthrough that unlocks Stinging Nettle’s true potential for hair and hormonal health. For a detailed explanation, visit our blog.
I want even more evidence, where can I find it?
For detailed evidence, check out our in-depth blog post, where we explain how we developed our solution for hair loss and hormonal imbalance. It cites over 150 scientific sources and walks you through the research and our discovery process.

While no direct clinical trials on our product exist yet, we combine extensive scientific literature with real-world testing and logical analysis. This comprehensive approach highlights the powerful benefits of Stinging Nettle: an elegant, natural solution many have overlooked.

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