No black box warning on record for Nutrafol

As of the latest FDA labeling reviewed, Nutrafol (proprietary nutraceutical blend (saw palmetto, biotin, ashwagandha, tocotrienols)) does not carry a black box warning. Standard warnings and precautions still apply — see the full Nutrafol medicine page for the complete safety profile.

Other warnings & precautions

Biotin laboratory test interference: The 3000 mcg daily biotin dose in Nutrafol significantly exceeds the recommended dietary allowance and can cause clinically significant false results in immunoassay-based laboratory tests, including thyroid function panels (TSH, free T4, free T3), cardiac troponin assays, and other biotin-streptavidin-based diagnostics. Inform all healthcare providers and diagnostic laboratories about Nutrafol use and discontinue biotin supplementation at least 48-72 hours before blood testing to prevent erroneous results
Hormonally sensitive conditions: Because Nutrafol contains saw palmetto (a 5-alpha reductase inhibitor with mild estrogenic activity) and other hormonally active botanicals, individuals with hormone receptor-positive breast cancer, prostate cancer, uterine cancer, ovarian cancer, endometriosis, uterine fibroids, or polycystic ovary syndrome (PCOS) should consult their oncologist or endocrinologist before use
Pregnancy warning: Nutrafol Women and Men formulations are not intended for use during pregnancy. Saw palmetto in particular may have hormonal effects that could theoretically affect fetal development. The Nutrafol Postpartum formulation is designed for postpartum use but should be used under medical guidance during breastfeeding
Surgical and bleeding risk: Due to the antiplatelet and anticoagulant properties of saw palmetto and tocotrienol components, Nutrafol should be discontinued at least 2 weeks prior to any elective surgical procedure, dental surgery, or invasive procedure to minimize bleeding complications
Allergy risk from multi-ingredient formulation: Nutrafol contains multiple botanical, marine (marine collagen), and other ingredients. Individuals with allergies to fish or seafood (marine collagen), palm family plants (saw palmetto), nightshades (ashwagandha), soy, or other botanicals should carefully review the full ingredient list and consult an allergist if needed
Liver disease: Cases of hepatotoxicity have been associated with saw palmetto and other botanical supplements; individuals with pre-existing liver disease, elevated liver enzymes, or hepatic impairment should use Nutrafol cautiously and under physician supervision, with periodic liver function monitoring
Drug interaction screening required: Given the complex multi-ingredient nature of Nutrafol, a comprehensive drug interaction review with a pharmacist or physician is strongly recommended before initiating therapy, particularly in individuals taking prescription medications
Not a substitute for medical treatment: Nutrafol is a dietary supplement, not an FDA-approved drug for hair loss. Significant or sudden hair loss may be a sign of an underlying medical condition (e.g., thyroid disease, iron deficiency anemia, autoimmune alopecia areata, scalp infections) that requires proper diagnosis and treatment. Consult a dermatologist or physician before self-treating hair loss
Pediatric use: Nutrafol has not been studied or approved for use in individuals under 18 years of age. Keep all supplements out of reach of children
Autoimmune conditions: Ashwagandha may stimulate immune system activity; individuals with autoimmune diseases including lupus, multiple sclerosis, rheumatoid arthritis, or Hashimoto's thyroiditis should consult their rheumatologist or immunologist before use, as immune stimulation could exacerbate disease activity

Other warnings & precautions

Biotin laboratory test interference: The 3000 mcg daily biotin dose in Nutrafol significantly exceeds the recommended dietary allowance and can cause clinically significant false results in immunoassay-based laboratory tests, including thyroid function panels (TSH, free T4, free T3), cardiac troponin assays, and other biotin-streptavidin-based diagnostics. Inform all healthcare providers and diagnostic laboratories about Nutrafol use and discontinue biotin supplementation at least 48-72 hours before blood testing to prevent erroneous results

Hormonally sensitive conditions: Because Nutrafol contains saw palmetto (a 5-alpha reductase inhibitor with mild estrogenic activity) and other hormonally active botanicals, individuals with hormone receptor-positive breast cancer, prostate cancer, uterine cancer, ovarian cancer, endometriosis, uterine fibroids, or polycystic ovary syndrome (PCOS) should consult their oncologist or endocrinologist before use

Pregnancy warning: Nutrafol Women and Men formulations are not intended for use during pregnancy. Saw palmetto in particular may have hormonal effects that could theoretically affect fetal development. The Nutrafol Postpartum formulation is designed for postpartum use but should be used under medical guidance during breastfeeding

Surgical and bleeding risk: Due to the antiplatelet and anticoagulant properties of saw palmetto and tocotrienol components, Nutrafol should be discontinued at least 2 weeks prior to any elective surgical procedure, dental surgery, or invasive procedure to minimize bleeding complications

Allergy risk from multi-ingredient formulation: Nutrafol contains multiple botanical, marine (marine collagen), and other ingredients. Individuals with allergies to fish or seafood (marine collagen), palm family plants (saw palmetto), nightshades (ashwagandha), soy, or other botanicals should carefully review the full ingredient list and consult an allergist if needed

Liver disease: Cases of hepatotoxicity have been associated with saw palmetto and other botanical supplements; individuals with pre-existing liver disease, elevated liver enzymes, or hepatic impairment should use Nutrafol cautiously and under physician supervision, with periodic liver function monitoring

Drug interaction screening required: Given the complex multi-ingredient nature of Nutrafol, a comprehensive drug interaction review with a pharmacist or physician is strongly recommended before initiating therapy, particularly in individuals taking prescription medications

Not a substitute for medical treatment: Nutrafol is a dietary supplement, not an FDA-approved drug for hair loss. Significant or sudden hair loss may be a sign of an underlying medical condition (e.g., thyroid disease, iron deficiency anemia, autoimmune alopecia areata, scalp infections) that requires proper diagnosis and treatment. Consult a dermatologist or physician before self-treating hair loss

Pediatric use: Nutrafol has not been studied or approved for use in individuals under 18 years of age. Keep all supplements out of reach of children

Autoimmune conditions: Ashwagandha may stimulate immune system activity; individuals with autoimmune diseases including lupus, multiple sclerosis, rheumatoid arthritis, or Hashimoto's thyroiditis should consult their rheumatologist or immunologist before use, as immune stimulation could exacerbate disease activity

Nutrafol Black Box Warning

No black box warning on record for Nutrafol

Other warnings & precautions

Nutrafol Black Box Warning

No black box warning on record for Nutrafol

Other warnings & precautions