The Nutrafol Women formula has been upgraded to its most advanced version yet, backed by 4 clinical studies.
The advanced formula uniquely addresses 2 biological pathways: cellular longevity and the gut microbiome.
It's 100% vegan and biotin-free, with a smaller capsule size for easier daily use.
In a clinical study, 100% of women felt improvement in hair strength at 3 months and saw more scalp coverage at 6 months.1
Whether you're new to Nutrafol or a current subscriber, here's what this update means for you.
The Nutrafol Women Formula Just Got an Upgrade—Here's What's New & What It Means For You
Product Education
9 Min Read

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Key Takeaways
A decade in the making
The Nutrafol Women formula just got its most significant upgrade yet—and whether you're a longtime Nutrafol customer or newly discovering the best ways to support your hair health, the science behind it is worth understanding.
Over the past few years, new clinical research, ingredient advances, and a deeper understanding of the biology of hair thinning have reshaped what's possible in a physician-formulated hair growth supplement. The result is an evolution of the Nutrafol Women formula—one built on 4 clinical studies, 2 unique pathways for addressing root causes of hair thinning, and a completely updated approach to what a daily Nutraceutical can do.
This isn't a small tweak. It's the most clinically advanced formula Nutrafol has ever offered women 18–44, after a decade of continued hair health innovation. Here's exactly what's changing, what it means for you, and why it matters.
What's actually changing
Nutrafol’s most advanced formula, and primary product offering, for women ages 18–44 is now simply called Nutrafol Women. Previously known as Nutrafol Women’s Vegan, this clinically proven formula has been rigorously studied since 2023.
If you’re already familiar with Nutrafol Women’s Vegan, what's changing is the name and the packaging. What's not changing is anything inside the bottle. The same 22 clinically effective ingredients, the same approach to targeting hair health from the inside out—just a new look that better reflects the advanced science it represents.
If you’re familiar with the original Nutrafol Women formula, you are now able to get a more advanced formula that reflects the latest hair science, introduces 2 new pathways not previously addressed by the original formula, and shows strong clinical study results. The transition is seamless—just keep taking your Nutraceutical daily to maintain your results.
What makes the advanced formula different
So what sets this formula apart? Let's break it down.
Two unique biological pathways
The original Nutrafol Women formula targeted 6 key root causes of hair thinning, including stress, hormones, and lifestyle. The advanced formula continues to address these 6 root causes while introducing 2 unique biological pathways to better address these factors: cellular longevity pathways to target the root cause of aging, and gut microbiome health to target the root cause of nutrition. The hair results seen with these new advancements are backed by two full-formulation clinical studies that have been published and peer-reviewed.2,3
"What we're seeing in hair research right now is a shift toward understanding hair thinning as a whole-body issue, not just a scalp issue,” said Dr. Heather Woolery-Lloyd, MD, FAAD, board-certified dermatologist and Chief Medical Advisor at Nutrafol. “Addressing cellular aging and gut health reflects a more complete approach to the biology of hair thinning.”
Moldavian Dragonshead and cellular longevity pathways
Moldavian Dragonshead introduces cellular longevity pathways, a mechanism of action that supports the body in producing its own collagen—addressing aging as a root cause of hair thinning.
“As we age, the dermis supporting the hair follicle naturally thins—it's one of the most underappreciated root causes of hair thinning,” Dr. Woolery-Lloyd said. “Supporting the body's own collagen production, rather than just supplementing it externally, is a meaningful shift in how we approach aging hair.”
Bacillus subtilis DE111® Probiotic and the gut microbiome
The Bacillus subtilis DE111® Probiotic supports gut microbiome diversity to help your body efficiently break down and absorb nutrients—addressing nutrition as a root cause of hair thinning and helping deliver nutrients needed to support healthy hair growth.
“Patients are often surprised to learn that gut health affects hair growth, but it makes sense: If your body isn't efficiently absorbing nutrients, it doesn't matter how good your diet or supplement routine is,” Dr. Woolery-Lloyd said. “A healthy microbiome is foundational to whether those nutrients actually reach the hair follicle.”
A smaller capsule
The daily serving has shifted from a size 00 to a size 0 capsule—meaningfully smaller, easier to swallow, and easier to stick with in the long-term. To give you a sense of the size difference, a 00 capsule is 0.92 inches long, and a 0 capsule is 0.83 inches long.
Biotin-free
The advanced formula is made without biotin, which is a compelling option for women who prefer a biotin-free supplement.
An updated vitamin profile
The nutrient lineup now includes Liposomal Vitamin C, Methylated B12, vegan Vitamin D, and Vitamin K2—each chosen for bioavailability and targeted support of hair health.
Strong clinical study results
What makes the clinical results behind the advanced formula stand out isn't just that they're good—it's how strong they are. In a clinical study, 100% of women felt an improvement in their hair strength at 3 months, 100% saw baby hairs growing out at 6 months, and 100% saw more scalp coverage at 6 months.1 A separate clinical study showed a 50% reduction in hair shedding at 6 months.2
“As a dermatologist, I look at the totality of the evidence—the ingredient-level research, the full-formulation studies, and what I see in my own patients—and this formula holds up on all three fronts,” Dr. Woolery-Lloyd said.
What this means for you
Where you are in your Nutrafol journey shapes how this update impacts you.
If you're new to Nutrafol, the advanced hair growth formula for Women is the best place to start for women ages 18 to 44. It addresses key root causes of hair thinning, and is 100% vegan and biotin-free. It's physician-formulated to target the biology of hair thinning from the inside out.
If you're a current subscriber of the original Nutrafol Women formula, think of this as an upgrade that reflects the most advanced science. You can transition to the advanced formula, which targets everything the original did, plus 2 new pathways for addressing root causes. It's the same commitment to your hair health and your results, with an even more innovative approach.
Of course, the data is just one way to look at this. Here's how real people taking Nutrafol Women describe their first 3 months on the advanced formula:
“I have been taking Nutrafol Women for over two years with incredible results. Just when I thought it couldn ’t get any better, it did. With the Nutrafol Women advanced formula, my hair has been growing faster and thicker than ever. I love that the capsules are smaller and biotin-free.”
– Katie, taking Nutrafol Women for over 2 years
“I’ve been on Nutrafol Women now for 2+ years, and I’ve been so happy with my results. At a time when I didn’t even recognize myself and my self-confidence was at an all-time low, I decided to take a chance on Nutrafol, and it completely changed my life. When they launched the Nutrafol Women advanced formula, I knew I had to try it and I’m so glad I did. I love that the capsules are smaller, it’s vegan, and it works! Best of all, my hair growth has continued.”
– Kim, taking Nutrafol Women for over 2 years
“I’ve been taking Nutrafol Women for over two years, so I was genuinely excited to continue with Nutrafol Women advanced formula. Consistency has made all the difference in my hair health journey, and I’m excited to keep it part of my routine.”
– Alex, taking Nutrafol Women for over 2 years
If you're a current Women's Vegan subscriber, the formula you've been taking isn't changing. The same 22 ingredients, the same formulation, the same results you've come to rely on. What's different is the name (now Nutrafol Women, not Nutrafol Women's Vegan) and the packaging. Everything that made you choose it is still inside the bottle.
The science behind it
The advanced formula has ingredients that support key root causes of hair thinning through two new pathways, reflecting real advances in understanding why hair thins in the first place.
Targeting cellular longevity pathways provides a way to support the root cause of aging. Research has shown that aging affects the cellular environment around hair follicles—including a decline in natural collagen that can compromise hair structure over time.4 Moldavian Dragonshead works by targeting longevity pathways at the cellular level, supporting the body's ability to produce its own collagen rather than relying solely on external sources.
Addressing the gut microbiome is a pathway for supporting nutrition as a root cause of hair thinning. Growing research connects the health of the gut microbiome directly to nutrient absorption throughout the body—including the micronutrients that feed hair follicles. The Bacillus subtilis DE111® Probiotic works to diversify the gut microbiome, so your body can make better use of what you're giving it.
Both pathways were informed by published clinical research, refined through 4 clinicals over 2 years, and the results have since been peer-reviewed and recognized by independent award bodies in the beauty and wellness space.2,3
"The research on Moldavian Dragonshead and the DE111 probiotic is compelling,” Dr. Woolery-Lloyd said. “These ingredients are backed by their own peer-reviewed data, and we’ve also studied how these ingredients in our specific formula beneficially impact hair health."
The bottom line
At Nutrafol, we believe in leading with science so that our products are not only of the highest quality, but also reflect the latest innovations. The advanced formula for Women isn't a change for change's sake—it's the result of years of clinical investment, a commitment to using new innovative technologies for addressing key root causes, and a genuine effort to put the strongest possible science behind every bottle.
Whether you're just beginning your hair wellness journey or continuing one you've been on for years, this formula is built to support it. Take the quiz to find your fit, learn more about the advanced formula for Women, or reach out to the Nutrafol team with any questions about the transition. Your hair health is always worth the conversation.
Frequently asked questions
Is the advanced formula really different from the original Women's formula?
Yes. While it builds on the same foundation, the advanced formula contains 22 total ingredients (compared to the original's 21) and includes 2 unique pathways for supporting root causes—cellular longevity and gut microbiome—that the original formula didn't address. It also features a smaller capsule size and an upgraded vitamin profile, all-vegan ingredients, and is biotin-free.
Is the advanced formula the same as Women's Vegan?
The formula inside the bottle is the same. What's changing is the name and packaging. Nutrafol Women's Vegan is being renamed Nutrafol Women and will serve as the sole formula for women 18–44 going forward. If you currently take Women's Vegan, the formulation you rely on isn't going anywhere; it's just getting a new name and a new look.
Does it matter that it's vegan if I don't follow a plant-based diet?
Not at all. The formula is made without animal-derived ingredients, but it's designed to support hair health for a wide range of women regardless of dietary preferences. The plant-based approach reflects how it's formulated, not who it's for.
What does biotin-free mean for my hair health?
The advanced formula supports hair growth through a comprehensive set of root-cause ingredients that don't include biotin. For women who prefer a biotin-free supplement, this formula offers a clinically proven alternative. Biotin isn't universally problematic, but the advanced formula simply takes a different approach to the same goal.
When will I start seeing results?
Results vary, but most women begin noticing improvements within 3 to 6 months of consistent daily use. The clinical studies supporting the advanced formula showed measurable improvements at both the 3-month and 6-month marks.2,3
Will I have a gap in results if I switch to the advanced formula from the original Women Hair Growth Nutraceutical?
No—your great results are designed to continue. The advanced formula of Nutrafol Women is built on the same foundation as the original formula, targeting key root causes of hair thinning to reduce shedding and help you grow hair faster, stronger, and longer, now enhanced with the latest science around nutrient absorption and cellular longevity pathways.
How do I know this is the right formula for me?
The advanced formula for Women is designed for women ages 18 to 44 and targets several key root causes of hair thinning, from stress and hormones to cellular aging and nutrient absorption. If you're unsure, taking the hair wellness quiz can help you identify the right formula for your specific needs.
1. Based on a clinical study with 32 women aged 23-58.
2. Sivamani R, et al. A prospective multi-center study to evaluate the safety and efficacy of a vegan nutraceutical to improve hair growth quality in females following a plant-based diet. J Drugs Dermatol. 2024;23(8):661. doi:10.36849/JDD.8421
3. Draelos Z, et al. A 6-month, prospective, multi-arm study for the efficacy of standardized nutraceuticals to improve hair fiber thickness and strength. Dermatol Ther. 2025;16:353-363. doi:10.1007/s13555-025-01582-0
4. Matsumura H, et al. Hair follicle aging is driven by transepidermal elimination of stem cells via COL17A1 proteolysis. Science. 2016;351(6273):559. doi:10.1126/science.aad4395
