At Nutrafol,
transparency isn’t new
—it’s foundational.
We’re committed to the highest safety and quality standards, because we’re committed to your health above all else.
Third-Party Certified by NSF
Our Hair Growth Nutraceuticals are NSF Certified for Sport®, the gold standard for quality and safety testing of dietary supplements, including testing for contaminants like heavy metals and pesticides.
Rigorous Testing Standards
All formulas undergo microbiological testing as well as testing for proper identification, potency, and purity to ensure the final product meets Supplement Facts label claims.
Coming Soon: Testing Results
Beginning January 2027, you’ll be able to view the testing results for the heavy metals arsenic, cadmium, lead, and mercury for Nutrafol Postpartum by lot number. This information is in compliance with California SB 646, and we’re proud to disclose it in order to further support transparency and informed decision-making.
How we think about
heavy metals.
Formulated with the needs of postpartum women in mind.
Nutrafol Postpartum is designed specifically to support women in the first year after giving birth.
Breastfeeding-friendly ingredients
All ingredients and their amounts were selected based on published data by the National Institutes of Health (NIH), National Academies, or other evidence-based research supporting suitability for breastfeeding women.
OBGYN-developed
Formulated to target key root causes of postpartum hair thinning like physical and emotional stress, hormonal changes, and nutrient depletion.
Trusted by professionals
Over 7,500 healthcare and hair care professionals recommend Nutrafol.1
Gluten-Free
Dairy-Free
Hormone-Free
Gelatin-Free
Free of Artificial Colors
Free of Artificial Flavoring
Soy-Free
Drug-Free
Non-GMO Tested
Halal
NSF Certified for Sport®
Supporting women through all life’s stages.
Your key root causes change as your life changes—that’s why we’ve formulated Nutrafol Hair Growth Nutraceuticals for women’s specific life stages, including postpartum and menopause.
Nutrafol Postpartum
For women in the first year post-birth or who are breastfeeding.
Shop Nutrafol Postpartum
Nutrafol Women’s Balance
The first and only hair growth supplement brand with published clinical studies on menopausal women.2
For women 45+ experiencing signs of hair thinning and shedding.
Proudly going
above
and beyond.
We’re committed to raising the bar not just for ourselves, but for the whole supplement industry.
1.5M+
people growing with us3
26
clinical studies, including 3 randomized, placebo-controlled trials
#1
hair growth supplement brand recommended by and personally used by dermatologists*
#1
selling hair growth supplement brand†
We're serious about facts.
Ask away.
What are heavy metals?
What are heavy metals?
Heavy metals are a broad group of naturally occurring elements in our environment. These elements include essential heavy metals, such as zinc, copper, and iron, and nonessential heavy metals, like arsenic and mercury.
What is California SB 646?
What is California SB 646?
California SB 646 is a law aiming to drive transparency for new moms and moms-to-be by requiring manufacturers of prenatal multivitamins, including dietary supplements intended for breastfeeding women, to test and publicly disclose the heavy metals arsenic, cadmium, lead, and mercury.
How does this relate to California Prop 65?
How does this relate to California Prop 65?
California Prop 65 is a “right to know” law that requires a warning on products sold in California that may expose consumers to potentially harmful levels of certain chemicals linked to cancer or reproductive harm. California SB 646 essentially expands on this enforcement by mandating testing and public disclosures of levels of potentially harmful heavy metals in prenatal vitamins.
What do the test results mean?
What do the test results mean?
In heavy metal testing, ppm is a measure used to measure low, trace levels of the concentration of a heavy metal within a food or product. Parts per million (ppm) lets you know how many parts of the heavy metal is present for every million parts of the total substance. Micrograms per kilogram (mcg/kg) lets you know the concentration of one microgram of heavy metal for every kilogram of substance.
While California SB 646 requires transparent testing results but does not set specific safety limits for the heavy metals being tested, Prop 65 does have set safety limits for testing that, if exceeded, requires a product to bear a warning statement. Nutrafol products are tested for Prop 65 heavy metals and are sold in California without a Prop 65 warning, meaning all of our products meet Prop 65 requirements.
Will these heavy metals be passed onto my baby through my breast milk?
Will these heavy metals be passed onto my baby through my breast milk?
Heavy metals can be passed through breast milk. We encourage you to speak to your trusted healthcare provider if you have questions on how this may impact you or your baby.
*According to IQVIA ProVoice survey for 12 months ending March 31, 2025.
†Nutrafol calculation based on Nielsen Omnisales Database, L52W ending 11/30/24.
1. Based on US studies published through PubMed, Cochrane, and top Google Scholar and ScienceDirect results as of August 2025. 2. Based on recommendations by hair care and healthcare professionals within the past 2 years, as of January 2025. 3. Based on non-subscription purchasers within the last 12 months and active subscribers as of January 2025.