NEW
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Cost per serving
$2.12
60 servings · ~60-day supply
vitamin · 128 active deals
The best-value Vitamin B7 right now is about $0.06 per dose — across 110 tracked products the median is $0.144/dose, so shopping on cost-per-dose can cut your cost several-fold. Every Vitamin B7 deal here is ranked by cost per dose— what you actually pay per serving, not the sticker price — because forms and absorption differ, so the cheapest bottle isn’t always the cheapest dose.
Right now the best value across our full Vitamin B7 catalog is at $0.06 per serving.
Biotin is a B vitamin and essential nutrient that acts as a cofactor for five carboxylase enzymes involved in critical steps of the metabolism of fatty acids, glucose, and amino acids, and it also plays roles in histone modifications, gene regulation, and cell signaling. Because signs of biotin deficiency include skin rashes, hair loss, and brittle nails, biotin supplements are often promoted for hair, skin, and nail health; however, the NIH notes these claims are supported, at best, by only a few small studies and case reports (for example, small uncontrolled studies on brittle nails and case reports in children and infants). The NIH states that future studies are needed to determine whether biotin supplements might improve hair, nail, and skin health, especially among healthy people. — per the NIH Office of Dietary Supplements; not medical advice.
According to the NIH, biotin is available in dietary supplements containing biotin only, in supplements combining B-complex vitamins, and in some multivitamin/mineral products. The sheet notes that the absorption rate of oral, free biotin is 100%, even when people consume pharmacologic doses of up to 20 mg/day; it does not otherwise describe bioavailability differences between distinct chemical forms.
Many foods contain some biotin, but those with the most include organ meats, eggs, fish, meat, seeds, nuts, and certain vegetables such as sweet potatoes. Beef liver is especially rich (about 30.8 mcg, or 103% of the Daily Value, per 3 ounces), followed by a whole cooked egg (10 mcg) and canned salmon (5 mcg per 3 ounces). The biotin content of food can vary, and raw egg whites contain avidin, which binds biotin and prevents its absorption unless the egg is cooked — per the NIH Office of Dietary Supplements.
Biotin deficiency is rare, and severe deficiency in healthy people eating a normal mixed diet has never been reported; signs appear gradually and can include thinning hair progressing to total body hair loss, a scaly red rash around the eyes, nose, mouth, and perineum, brittle nails, seizures, and neurological findings such as depression and lethargy. Among the groups most likely to have inadequate biotin status are people with the rare inherited biotinidase deficiency, those with chronic alcohol exposure (which inhibits biotin absorption), and pregnant and breastfeeding women — at least a third of pregnant women develop marginal biotin deficiency despite normal intakes — per the NIH Office of Dietary Supplements.
Every Vitamin B7 deal above is ranked by real cost per dose with no paid placement — see our and .
2 of 19 tracked Vitamin B7 brands here are flagged as carrying independent third-party testing — a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
There is no for biotin; the Food and Nutrition Board set only Adequate Intakes (AIs). For adults 19+ years the AI is 30 mcg/day. Pregnancy is 30 mcg/day and lactation 35 mcg/day. Infants 0-6 months need 5 mcg, children rise from 8 mcg (1-3 years) to 25 mcg (14-18 years). — per the NIH Office of Dietary Supplements; general information, not medical advice.
The Food and Nutrition Board could not set a because there is no evidence biotin is toxic at high intakes; studies found no adverse effects of 10-50 mg/day. However, high intakes can cause falsely high or low laboratory test results, possibly leading to misdiagnosis or inappropriate patient management. — per the NIH Office of Dietary Supplements; general information, not medical advice.
Signs typically appear gradually: thinning hair progressing to total body hair loss; scaly red rash around the eyes, nose, mouth, and perineum; conjunctivitis; ketolactic acidosis and aciduria; seizures; skin infection; brittle nails; neurological findings (depression, lethargy, hallucinations, paresthesias) in adults; and hypotonia, lethargy, and developmental delay in infants. — per the NIH Office of Dietary Supplements; general information, not medical advice.
Groups most likely to have inadequate biotin status include individuals with biotinidase deficiency (a rare disorder preventing release of free biotin), individuals with chronic alcohol exposure (which inhibits biotin absorption; 15% of people with chronic alcoholism have low plasma biotin), and pregnant and breastfeeding women (at least a third of pregnant women develop marginal deficiency). — per the NIH Office of Dietary Supplements; general information, not medical advice.
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.
The Food and Nutrition Board was unable to establish a Tolerable Upper Intake Level (UL) for biotin because there is no evidence in humans that it is toxic at high intakes, and several studies found no adverse effects of 10–50 mg/day. However, high biotin intakes — and potentially even intakes greater than the AI — can cause clinically significant falsely high or falsely low laboratory test results that may lead to misdiagnosis or inappropriate patient management; the FDA has noted that a patient died after a biotin-skewed troponin test gave a falsely low result — per the NIH Office of Dietary Supplements.
Cost per serving
$2.12
60 servings · ~60-day supply
Cost per serving
$0.25
60 servings · ~60-day supply
Cost per serving
$0.36
41 servings · ~41-day supply
Cost per serving
$0.85
41 servings · ~41-day supply
Cost per serving
$0.61
82 servings · ~82-day supply
Cost per serving
$0.49
41 servings · ~41-day supply
Cost per serving
$0.43
60 servings · ~60-day supply
Cost per serving
$0.22
60 servings · ~60-day supply
Cost per serving
$0.32
60 servings · ~60-day supply
Cost per serving
$0.21
90 servings · ~90-day supply
Cost per serving
$0.29
120 servings · ~120-day supply
Cost per serving
$0.44
60 servings · ~60-day supply
Cost per serving
$0.49
60 servings · ~60-day supply
Cost per serving
$0.24
120 servings · ~120-day supply
Cost per serving
$0.10
240 servings · ~240-day supply
Cost per serving
$0.32
60 servings · ~60-day supply
Cost per serving
$0.33
60 servings · ~60-day supply
Cost per serving
$0.11
180 servings · ~180-day supply
Cost per serving
$0.15
200 servings · ~200-day supply
Cost per serving
$0.18
60 servings · ~60-day supply
Cost per serving
$0.11
150 servings · ~150-day supply
Cost per serving
$0.33
120 servings · ~120-day supply
Cost per serving
$0.25
120 servings · ~120-day supply
Cost per serving
$0.21
60 servings · ~60-day supply
Cost per serving
$0.25
60 servings · ~60-day supply
Cost per serving
$0.07
Cheap·−79%150 servings · ~150-day supply
Cost per serving
$0.17
50 servings · ~50-day supply
Cost per serving
$0.23
60 servings · ~60-day supply
Cost per serving
$1.08
60 servings · ~60-day supply
Cost per serving
$0.25
90 servings · ~90-day supply
Cost per serving
$0.18
Avg·−43%120 servings · ~120-day supply
Cost per serving
$0.25
120 servings · ~120-day supply
Cost per serving
$0.17
120 servings · ~120-day supply
Cost per serving
$0.19
180 servings · ~180-day supply
Cost per serving
$0.25
120 servings · ~120-day supply
Cost per serving
$0.28
100 servings · ~100-day supply
Cost per serving
$0.06
180 servings · ~180-day supply
Cost per serving
$0.17
Avg·−46%60 servings · ~60-day supply
Cost per serving
$0.30
Pricey60 servings · ~60-day supply
Cost per serving
$0.30
Pricey60 servings · ~60-day supply
Cost per serving
$0.10
Avg·−67%Cost per serving
$0.38
Pricey60 servings · ~60-day supply
Cost per serving
$0.73
Pricey30 servings · ~30-day supply
Cost per serving
$0.20
Avg·−41%59 servings · ~59-day supply
Cost per serving
$0.40
Pricey60 servings · ~60-day supply
Cost per serving
$0.12
Avg·−60%Cost per serving
$0.42
120 servings · ~120-day supply
Cost per serving
$0.14
Avg·−50%200 servings · ~200-day supply
Cost per serving
$0.30
60 servings · ~60-day supply
Cost per serving
$0.11
Avg·−63%Cost per serving
$0.10
Avg·−66%100 servings · ~100-day supply
Cost per serving
$0.15
Avg·−48%150 servings · ~150-day supply
Cost per serving
$0.09
Avg·−71%100 servings · ~100-day supply
Cost per serving
$0.06
Cheap·−81%120 servings · ~120-day supply
Cost per serving
$0.07
Cheap·−79%180 servings · ~180-day supply
Cost per serving
$0.10
Avg·−67%100 servings · ~100-day supply
Cost per serving
$0.16
Avg·−47%150 servings · ~150-day supply
Cost per serving
$0.06
Cheap·−80%Cost per serving
$0.14
Avg·−51%Cost per serving
$0.14
Avg·−52%Cost per serving
$0.33
90 servings · ~90-day supply
Cost per serving
$0.03
Cheap·−89%250 servings · ~250-day supply
Cost per serving
$0.17
Avg·−45%100 servings · ~100-day supply
Cost per serving
$0.06
Cheap·−83%100 servings · ~100-day supply
Cost per serving
$0.22
90 servings · ~90-day supply
Cost per serving
$0.06
Cheap·−81%100 servings · ~100-day supply
Cost per serving
$0.07
Cheap·−79%100 servings · ~100-day supply
Cost per serving
$0.10
Avg·−66%Cost per serving
$0.37
60 servings · ~60-day supply
Cost per serving
$0.22
120 servings · ~120-day supply
Cost per serving
$0.21
120 servings · ~120-day supply
Cost per serving
$0.15
60 servings · ~60-day supply
Cost per serving
$0.42
60 servings · ~60-day supply
Cost per serving
$0.56
60 servings · ~60-day supply
Cost per serving
$0.27
120 servings · ~120-day supply
Cost per serving
$1.59
22 servings · ~22-day supply
Cost per serving
$0.10
60 servings · ~60-day supply
Cost per serving
$0.06
150 servings · ~150-day supply
Cost per serving
$0.26
90 servings · ~90-day supply
Cost per serving
$0.31
Pricey60 servings · ~60-day supply
Cost per serving
$0.20
Avg·−41%50 servings · ~50-day supply
Cost per serving
$0.05
Cheap·−84%100 servings · ~100-day supply
Cost per serving
$0.17
Avg·−46%100 servings · ~100-day supply
Cost per serving
$0.15
Avg·−49%90 servings · ~90-day supply
Cost per serving
$0.14
Avg·−51%60 servings · ~60-day supply
Cost per serving
$0.10
Avg·−67%Cost per serving
$0.13
Avg·−54%200 servings · ~200-day supply
Cost per serving
$0.03
Cheap·−91%360 servings · ~360-day supply
Cost per serving
$0.10
Avg·−65%Cost per serving
$0.17
Avg·−46%120 servings · ~120-day supply
Cost per serving
$0.10
Avg·−66%120 servings · ~120-day supply
Cost per serving
$0.13
Avg·−54%100 servings · ~100-day supply
Cost per serving
$0.05
Cheap·−84%150 servings · ~150-day supply
Cost per serving
$0.04
Cheap·−87%250 servings · ~250-day supply
Cost per serving
$0.03
Cheap·−91%360 servings · ~360-day supply
Cost per serving
$0.09
Avg·−70%150 servings · ~150-day supply
Amazon.com · ✨ Collagen Peptides
CPS
Price
$127.00
Amazon.com · ✨ Collagen Peptides
CPS
Price
$14.95
Amazon.com · ✨ Collagen Peptides
CPS
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$14.95
Amazon.com · ✨ Collagen Peptides
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$34.95
Amazon.com · ✨ Collagen Peptides
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$49.95
Amazon.com · ✨ Collagen Peptides
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$19.99
Amazon.com · ✨ Collagen Peptides
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$25.95
Amazon.com · ✨ Collagen Peptides
CPS
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$12.99
Amazon.com · ✨ Collagen Peptides
CPS
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$18.96
Amazon.com · ✨ Collagen Peptides
CPS
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$18.88
Amazon.com · ✨ Collagen Peptides
CPS
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$34.99
Amazon.com · ✨ Collagen Peptides
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$26.50
Amazon.com · ✨ Collagen Peptides
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$29.39
Amazon.com · ✨ Collagen Peptides
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$28.99
Amazon.com · ✨ Collagen Peptides
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$24.99
Amazon.com · ✨ Collagen Peptides
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$18.96
Amazon.com · ✨ Collagen Peptides
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$19.99
Amazon.com · ✨ Collagen Peptides
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$18.99
Amazon.com · ✨ Collagen Peptides
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$29.98
Amazon.com · ✨ Collagen Peptides
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$10.99
Amazon.com · ✨ Collagen Peptides
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$16.99
Amazon.com · ✨ Collagen Peptides
CPS
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$39.99
Amazon.com · ✨ Collagen Peptides
CPS
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$29.95
Amazon.com · 🅱️ B-Complex
CPS
Price
$12.49
Amazon.com · 🅱️ B-Complex
CPS
Price
$14.97
Amazon.com · 💇 Vitamin B7
CPS
Price
$9.99
Amazon.com · ⚡ Alpha-Lipoic Acid
CPS
Price
$8.51
Amazon.com · ✨ Collagen Peptides
CPS
Price
$13.95
Amazon.com · 🧠 Choline
CPS
Price
$64.99
Amazon.com · ✨ Collagen Peptides
CPS
Price
$22.74
SuperSmart USA LLC · SuperSmart · 💇 Vitamin B7
CPS
Price
$22.00
Vykee Nutrition · Amazon.com · 🅱️ B-Complex
CPS
Price
$29.99
Amazon.com · 🅱️ B-Complex
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$19.95
Amazon.com · 🅱️ B-Complex
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Price
$34.90
Amazon.com · 🅱️ B-Complex
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$29.59
Bluebonnet · Amazon.com · 🅱️ B-Complex
CPS
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$27.60
Carlyle · Amazon.com · 🅱️ B-Complex
CPS
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$9.99
Amazon.com · 💇 Vitamin B7
CPS
Price
$9.99
Amazon.com · 💇 Vitamin B7
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$17.99
Amazon.com · 💇 Vitamin B7
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$17.95
Amazon.com · 💇 Vitamin B7
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$17.99
Amazon.com · 💇 Vitamin B7
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$22.99
Amazon.com · 💇 Vitamin B7
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$21.95
Amazon.com · 💇 Vitamin B7
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$11.59
Amazon.com · 💇 Vitamin B7
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$23.99
Nature Made · Amazon.com · 💇 Vitamin B7
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$14.24
Amazon.com · ✨ Collagen Peptides
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$49.99
Nature's Life · Amazon.com · 💇 Vitamin B7
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$28.79
Amazon.com · ✨ Collagen Peptides
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$17.95
Nature Made · Amazon.com · 💇 Vitamin B7
CPS
Price
$13.18
Nature's Blend · Amazon.com · 💇 Vitamin B7
CPS
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$10.30
Amazon.com · 💇 Vitamin B7
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$22.99
Superior Source · Amazon.com · 💇 Vitamin B7
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$8.99
Nature's Truth · Amazon.com · 💇 Vitamin B7
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$7.27
Nature's Bounty · Amazon.com · 💇 Vitamin B7
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$11.98
Nature's Bounty · Amazon.com · 💇 Vitamin B7
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$9.94
Amazon.com · 💇 Vitamin B7
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$23.88
BulkSupplements.com · Amazon.com · 💇 Vitamin B7
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$22.97
Superior Source · Amazon.com · 💇 Vitamin B7
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$14.21
Bluebonnet · Amazon.com · 💇 Vitamin B7
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$12.40
Amazon.com · 🥦 Selenium
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Carlyle · Amazon.com · 💇 Vitamin B7
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$8.72
Nature's Bounty · Amazon.com · 💇 Vitamin B7
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$17.49
NOW Foods · Amazon.com · 💇 Vitamin B7
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$5.50
Amazon.com · ✨ Collagen Peptides
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$19.99
Life Extension · Amazon.com · 💇 Vitamin B7
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$6.00
Nature's Bounty · Amazon.com · 💇 Vitamin B7
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$6.70
Nature Made · Amazon.com · 💇 Vitamin B7
CPS
Price
$12.28
Amazon.com · ✨ Collagen Peptides
CPS
Price
$21.99
Amazon.com · 🅱️ B-Complex
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$26.24
Amazon.com · 🅱️ B-Complex
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$24.99
Amazon.com · 🅱️ B-Complex
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$8.99
Amazon.com · 🅱️ B-Complex
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$24.95
Amazon.com · 🅱️ B-Complex
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$33.79
Amazon.com · 🅱️ B-Complex
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$32.95
Amazon.com · 🅱️ B-Complex
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$34.99
NatureWise · Amazon.com · 🅱️ B-Complex
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$5.98
NatureWise · Amazon.com · 🅱️ B-Complex
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$9.58
Amazon.com · 🅱️ B-Complex
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$22.95
Amazon.com · 💇 Vitamin B7
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$18.71
Nature's Truth · Amazon.com · 💇 Vitamin B7
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$9.99
Carlyle · Amazon.com · 💇 Vitamin B7
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Vitafusion · Amazon.com · 💇 Vitamin B7
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$13.77
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Nature's Bounty · Amazon.com · 💇 Vitamin B7
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$26.59
Carlyle · Amazon.com · 💇 Vitamin B7
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$9.99
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$15.74
Bluebonnet · Amazon.com · 💇 Vitamin B7
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$19.96
NOW Foods · Amazon.com · 💇 Vitamin B7
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$12.40
Jarrow Formulas · Amazon.com · 💇 Vitamin B7
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$13.49
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Carlyle · Amazon.com · 💇 Vitamin B7
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Nutricost · Amazon.com · 💇 Vitamin B7
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$13.95
Yes. Anticonvulsants are one example: in a study of 264 people with epilepsy, treatment for at least 1 year was associated with significantly lower serum biotin. Drugs included carbamazepine, primidone, phenytoin, and phenobarbital. The likely reason is increased biotin catabolism reducing biotin status and inhibiting intestinal absorption. — per the NIH Office of Dietary Supplements; general information, not medical advice.
NOW Foods Supplements, Biotin 1,000 mcg, Amino Acid Metabolism*, Energy… at $0.06 per serving — the lowest cost-per-dose vitamin b7 in our catalog. See the full ranking on the Best Vitamin B7 page.
We're tracking 128 active Vitamin B7 deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
Across 110 tracked Vitamin B7 deals the median cost-per-dose is $0.144; the cheapest quartile comes in under $0.080 per serving. Anything below the median is a solid deal for the same molecule.
Deals are submitted by the community and ranked by net votes (hot minus cold) plus cost-per-dose normalised across container sizes. We take no affiliate kickbacks for ordering; sponsored slots, when present, are clearly badged.
The Food and Nutrition Board was unable to establish a Tolerable Upper Intake Level (UL) for biotin because there is no evidence in humans that it is toxic at high intakes, and several studies found no adverse effects of 10–50 mg/day. However, high biotin intakes — and potentially even intakes greater than the AI — can cause clinically significant falsely high or falsely low laboratory test results that may lead to misdiagnosis or inappropriate patient management; the FDA has noted that a patient died after a biotin-skewed troponin test gave a falsely low result — per the NIH Office of Dietary Supplements.
Biotin deficiency is rare, and severe deficiency in healthy people eating a normal mixed diet has never been reported; signs appear gradually and can include thinning hair progressing to total body hair loss, a scaly red rash around the eyes, nose, mouth, and perineum, brittle nails, seizures, and neurological findings such as depression and lethargy. Among the groups most likely to have inadequate biotin status are people with the rare inherited biotinidase deficiency, those with chronic alcohol exposure (which inhibits biotin absorption), and pregnant and breastfeeding women — at least a third of pregnant women develop marginal biotin deficiency despite normal intakes — per the NIH Office of Dietary Supplements.
Many foods contain some biotin, but those with the most include organ meats, eggs, fish, meat, seeds, nuts, and certain vegetables such as sweet potatoes. Beef liver is especially rich (about 30.8 mcg, or 103% of the Daily Value, per 3 ounces), followed by a whole cooked egg (10 mcg) and canned salmon (5 mcg per 3 ounces). The biotin content of food can vary, and raw egg whites contain avidin, which binds biotin and prevents its absorption unless the egg is cooked — per the NIH Office of Dietary Supplements.
Dosage, upper-limit, deficiency, food-source and interaction facts are sourced from the NIH Office of Dietary Supplements Vitamin B7 fact sheet. General information, not medical advice.
180 servings · ~180-day supply
120 servings · ~120-day supply
120 servings · ~120-day supply
365 servings · ~365-day supply
100 servings · ~100-day supply
90 servings · ~90-day supply
120 servings · ~120-day supply
100 servings · ~100-day supply
150 servings · ~150-day supply
