Nutrafol has the stronger paper trail for hair: its website cites clinical studies on its own formulas, names the root causes each formula targets, and offers a written 6-month guarantee. Primal Harvest’s pages cite research for its XanthoGreen and AquaMin F ingredients, and its ingredient and price details are on its product pages. Before you pay for either, check the Supplement Facts label, the price at checkout and the refund terms, which we lay out below.
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Primal Harvest vs Nutrafol side by side
| Axis | Primal Harvest | Nutrafol |
|---|---|---|
| What it sells | Its homepage lists Primal Multivitamin, Primal Collagen, Primal Greens, Primal Probiotics and apple cider vinegar gummies | Five formulas: Women (18-44, improved, biotin-free), Women’s Vegan, Postpartum, Women’s Balance (45+) and Men’s |
| Ingredients | Its ingredients page describes XanthoGreen (xanthophyll carotenoids) and AquaMin F (a calcium-rich mineral complex) | Its pages describe each formula by the root causes it targets; the ingredient amounts are on the Supplement Facts panel |
| Daily use | Primal Multivitamin: 30 capsules and 30 servings per bottle | Four capsules each day, per its Real Growth Guarantee terms |
| Price | Primal Multivitamin, not a hair product: $24.66 on its homepage. Check any hair product’s price on its product page | Check today’s price at checkout |
| Guarantee | 90-day money-back guarantee, per its homepage FAQ | “Results in 6 months or your money back” (hero text), subject to the Real Growth Guarantee terms |
| Subscriptions and shipping | Subscribe and Save for 20% off; subscriptions can be paused, changed or cancelled; free ground shipping on subscription orders | Real Growth Guarantee needs 6 bottles bought by subscription within 180 days; first-order offer for U.S. orders ended October 22, 2026 |
| Quality claims | Says every product is free of additives and rigorously tested by third parties | Says it is “clinically proven,” “100% drug-free” and “NSF Certified for Sport” |
| Buyer figures | Press quotes on its homepage about its greens and probiotics | Says over 1.5 million people use it; its customer quotes cite a 6-month clinical study |
| Who should ask a clinician first | Its FAQ asks “Can I take your products if I have a medical condition?” | Not recommended under 18; skip while pregnant or trying to conceive; consult a physician if you take medicines such as blood thinners |
What is Nutrafol, and who sells it?
Nutrafol’s website calls it “Hair Wellness from Within” and describes itself as the “#1 Dermatologist-Recommended Hair Growth Supplement Brand.” It cites an IQVIA ProVoice survey for the 12 months ending March 31, 2026 for that claim. Nutrafol says its formulas target root causes of thinning such as hormones, stress, lifestyle, metabolism, nutrition and aging. You buy it through nutrafol.com.
What is Primal Harvest, and who sells it?
Primal Harvest’s About page says the company took its first step in 2017 and launched Turmeric Complex, its first product, a year later. Its homepage says it was “Founded in 2018.” Its own pages disagree on the start date, so judge the company by its products and their labels. Its homepage shows Primal Multivitamin, Primal Collagen, Primal Greens, Primal Probiotics and apple cider vinegar gummies, plus a Beauty category for “skin, hair, and nails.”
The Primal Harvest homepage does not show a Hair Growth Complex. If you found one elsewhere, check its product page and label for the ingredients, amounts and price before you order.
What ingredients does each one list?
Nutrafol’s pages describe each formula by the root causes it targets. Its Women (18-44) formula is labelled “IMPROVED FORMULA, BIOTIN-FREE.” The ingredients and amounts are on the Supplement Facts panel of the bottle, so read that panel for the formula you would take.
Primal Harvest’s ingredients page describes XanthoGreen as a concentrated source of lutein, zeaxanthin and other carotenoids for eye health, cognitive function and antioxidant defense. It describes AquaMin F as a plant-based mineral complex with a minimum 32% calcium content, for bones, joints and general health. Both are presented for those purposes, not as hair ingredients. For any hair product, check the label for the full ingredient list and the amount of each.
What does the research behind each one show?
Nutrafol says it has “5+ clinical studies, including randomized, placebo-controlled trials.” Its page says 80% of women felt an improvement in hair strength after 3 months on Nutrafol Women, citing Ablon in the Journal of Drugs in Dermatology (2018). Its references also include Grothe in Phytotherapy Research (2020) and Tenore in the Journal of Medicinal Food (2016). These are Nutrafol’s own figures and citations. To judge the 80% figure, read the 2018 paper for its sample size, design and population.
Nutrafol also says its Women’s Balance is “the only hair growth supplement with published clinical studies in menopausal women with hair thinning.” It bases that on US publications in PubMed, Cochrane and top Google Scholar and ScienceDirect results prior to February 2021.
Primal Harvest’s pages cite two studies under XanthoGreen: Stringham and Hammond (2008, Archives of Biochemistry and Biophysics) and Ma et al. (2020, Nutrients). The page lists them for that ingredient. Ask Primal Harvest which studies, if any, support the hair product you are considering.
Is Nutrafol a good supplement?
Nutrafol is five formulas split by sex, age and life stage, with cited clinical studies and a written guarantee. Whether it fits you depends on the cause of your thinning, your age, whether you are pregnant or breastfeeding, and any medicines you take. Its own page says who should skip it, covered in the next section.
Biotin vs Nutrafol: which should you take?
Nutrafol’s Women (18-44) improved formula is biotin-free, according to its page. Check the label of any other Nutrafol formula for biotin, and the label of any Primal Harvest product you consider, since each product lists its own vitamins. If you have blood work coming up, tell your clinician which supplements you take.
Nutrafol side effects and who should ask a clinician first
Nutrafol’s page says it does not recommend Nutrafol to anyone under 18. It says to skip Nutrafol while pregnant or trying to conceive, and to use Nutrafol Postpartum while breastfeeding. It adds that there have not been enough studies for it to say Nutrafol is suitable during pregnancy.
The page says: “If you have a medical condition, or are taking medications (especially anticoagulant and blood-thinning drugs), please consult with your physician before taking Nutrafol.” For side effects of a specific formula, read its label and ask Nutrafol through its Contact Us link before you order.
Cleveland Clinic’s Cleveland Clinic’s amlodipine drug guide advises you to “give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use.” Harvard Health’s Harvard Health disclaimer says its content should never be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Primal Harvest side effects: what its FAQ says
Primal Harvest’s FAQ asks “Are my products safe to use?” and “Can I take your products if I have a medical condition?” Read its answers on the FAQ page, and check the label of the product you are considering before you start it.
What does each one cost?
Prices as of October 20, 2026. Primal Harvest’s homepage lists Primal Multivitamin at $24.66, next to a Subscribe & Save option at 20% off and a Buy Once option. The bottle holds 30 capsules and 30 servings, which works out to about $0.82 per serving at that listed price. That is the multivitamin, not a hair product, so do not use it to compare against Nutrafol’s hair formulas. Check at checkout which price applies to you, one-time or subscription.
Nutrafol’s homepage offered 20% off the first payment of a 3-month subscription and 25% off a 6-month subscription, for new customers ordering from October 15 to October 22, 2026. A monthly subscription got no subscription discount in that offer. Those offers have ended. Prices and bundles change, so check today’s Nutrafol price with the company at checkout.
What are the refund and guarantee terms?
Primal Harvest’s homepage FAQ says: “We stand behind our products with a 90-day money-back guarantee. If you’re not completely satisfied, contact us, and we’ll make it right.” Its FAQ says subscriptions can be paused, modified or cancelled at any time. Its contact page offers a chat agent that can change an order or subscription. Its Refund Policy page is linked in its footer.
Nutrafol’s hero text promises “Results in 6 months or your money back.” Its Real Growth Guarantee page lists the steps needed to qualify: you are asked to buy 6 bottles of a Nutraceutical through a subscription within 180 days, take 4 capsules each day, download the myNutrafol app within 30 days of your first order, and submit monthly progress photos in the app. Ask Nutrafol whether the 6-month offer requires meeting these steps for your order before you buy.
What do buyers say?
Nutrafol’s page says over 1.5 million people are “tapping into their growth potential.” Its customer quotes each end with the line “In a 6-month clinical study, participants taking Nutrafol [formula] experienced significant hair growth.” The page also says its expert partners are compensated for their opinion and experience. These are the brand’s own quotes and figures.
Primal Harvest’s homepage shows press quotes about Primal Greens and Primal Probiotics. Those quotes are about those products, not a hair formula. For buyer reviews of any Primal Harvest hair product, read the reviews on its product page and at the retailer you use.
Which one suits you?
Nutrafol suits you if you want a formula chosen for your sex, age or life stage, with cited clinical studies and a written guarantee. Its options are Women (18-44), Women’s Vegan, Postpartum, Women’s Balance for women 45 and older, and Men’s for men 18 and older.
Primal Harvest suits you if you want one brand that also sells multivitamin, probiotic and greens products, with a 90-day money-back guarantee on its homepage and subscriptions you can pause or cancel. Pick it for the hair product only if that product’s label gives the ingredients and amounts you want.
If you are weighing other supplement pairs, see Happy Mammoth vs Primal Queen ingredients and price for another side-by-side layout.
Before you order
- Find the Supplement Facts label or ingredient list for the exact product, and check the amount per serving.
- Check the price at checkout, and whether it is the one-time or subscription price.
- Ask Nutrafol whether the “Results in 6 months or your money back” offer requires meeting the Real Growth Guarantee steps for your order.
- Ask Primal Harvest which studies, if any, support the hair product’s ingredients.
- If you take blood thinners or any other medicine, or you are pregnant, breastfeeding or under 18, ask your clinician or pharmacist before you start either product.
What to do if you already paid
Write down the order date, the product, the price and the guarantee you bought under. Then contact the seller in writing. Primal Harvest’s chat agent can change an order or subscription, and its Refund Policy page, linked in its footer, is where to check how to request a refund. For Nutrafol, contact the company in writing, citing the 6-month money-back offer and the Real Growth Guarantee terms you bought under. If the seller does not refund you, contact the company that issued your card and ask how to dispute the charge.
For a step-by-step refund check on another supplement, see Paratoxil refund check.
By NHINWatch.com Investigations Desk
This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.