Vitamin B7 (Biotin): Dosage, Forms, Safety & Price

What is it?

Identity and form

Vitamin B7 is biotin, also historically called vitamin H.

Names, aliases and forms

AbbreviationB7

Common NamesBiotin; Vitamin H

Mechanisms of action

Biological role

Biotin acts as a cofactor for carboxylase enzymes in fatty-acid, glucose, and amino-acid metabolism.

Potential effects and evidence map

Evidence is strong for the essential nutrient role of biotin, but supplementation beyond adequacy has not been shown to produce a reliable general nootropic effect in well-nourished adults. Form-specific clinical uses should be evaluated separately.

Effect domainMagnitudeGrade

Mental energy / wakefulness¹

UnknownConfidence: Medium

Evidence does not establish a reliable mental-energy effect from extra Vitamin B7 (Biotin) in well-nourished healthy adults.

Note Essential nutrient biology and correction of inadequate status are different from enhancement.

1/5

Memory / learning¹

UnknownConfidence: Medium

Direct evidence does not establish a general memory or learning benefit from Vitamin B7 (Biotin) for healthy adults.

Note Keep form- and population-specific clinical research separate.

0/5

Typical dosages and timing

Nutrition benchmark¹30 mcg/day

Use this to interpret labels and total intake, not as a demonstrated nootropic dose or recommended cycle.

Timing & effect horizon

Effect horizonUnknown

Unknown

What timing evidence can show¹

No reliable acute nootropic onset, duration, claim, or routine cycle is established for Vitamin B7 (Biotin). Nutrient-status correction and clinical follow-up periods answer different questions.

Safety, side effects and risk profile

Evidence uncertainty¹

Confidence: High

Marketing claims extend beyond the established nutrient or precursor evidence.

Note Separate adequacy, biochemical activity, and enhancement outcomes.

1/5

Interaction risk¹

Confidence: Medium

Medication, laboratory, and total-intake context can change the practical risk.

Note Check the official source for ingredient-specific interaction details.

2/5

GI discomfort¹

Confidence: Medium

Tolerability varies with the specific form and amount consumed.

Note This row summarizes ordinary tolerability rather than special-population hazards.

1/5

Dose- and form-specific safety¹

No tolerable upper intake level has been established, but high-dose biotin can produce clinically misleading laboratory-test results, including some hormone and cardiac assays.