Vitamin B5 (Pantothenic Acid)
Named for being everywhere in food, sold for a condition the literature cannot find.
D+
Evidence grade
D
Worth it
$6-12/month
Typical cost
DoseAdequate intake is 5 mg/day, reached effortlessly: eggs, meat, dairy, grains, and vegetables all carry it, which is why no deficiency syndrome exists outside experimental depletion studies from the 1950s. Supplements sell 100 to 500 mg, ten to one hundred times the requirement, for the claims graded above.
BasisVitamin B5 is essential biochemistry with an empty supplement file.
Pantothenic acid is the precursor of coenzyme A, central to energy metabolism. We grade Vitamin B5 (Pantothenic Acid) D+ on evidence and D for worth-it at about $6-12 per month.
What it does
Pantothenic acid is the precursor of coenzyme A, central to energy metabolism. It is sold for stress and 'adrenal support,' skin, and energy. This record grades the supplement case, which must reckon with the fact that deficiency is virtually impossible on any real diet.
What the research says
The 'adrenal support' claim has no evidence and a contested premise
Evidence: weak. Pantothenic acid is marketed for 'adrenal fatigue' on the logic that it feeds coenzyme A and thus cortisol production. 'Adrenal fatigue' itself failed a systematic review (Cadegiani 2016 found no substantiation that it exists as a diagnosis), and no trial shows B5 improves fatigue, stress, or cortisol measures in anyone. A claim about a condition the literature cannot find, treated by a mechanism never tested.
One small trial for acne is the entire positive human file
Evidence: weak. A single randomized study (Yang 2014, 41 adults) of a pantothenic-acid-based supplement reported fewer facial lesions over 12 weeks. Unreplicated, industry-linked, and the product was a formulation, not B5 alone. Topical dexpanthenol (the alcohol form) is a legitimately used skin and wound ingredient, but that is a different exposure from oral B5 and does not transfer.
Vitamin B5 is essential biochemistry with an empty supplement file. Its headline market claim treats a diagnosis the literature does not recognize, its single positive trial is small and unreplicated, and the population that could benefit from more B5 has never been identified because ordinary diets make deficiency nearly impossible. D+ for an honest nutrient with no demonstrated job for the pill.
Is it worth it?
Evidence (D+) sits far below the leaderboard floor, so the worth-it grade is capped at C+; the derived value lands at D. About $9 a month at common doses. Derived from the October 2026 worth-it model.
Typical cost
$6-12/month
Common form, not a brand recommendation
Dosage context established
Adequate intake is 5 mg/day, reached effortlessly: eggs, meat, dairy, grains, and vegetables all carry it, which is why no deficiency syndrome exists outside experimental depletion studies from the 1950s. Supplements sell 100 to 500 mg, ten to one hundred times the requirement, for the claims graded above.
Worth-it leaderboard
Vitamin B5 (Pantothenic Acid) sits outside the worth-it top 20.
Vitamin B5 (Pantothenic Acid) sits outside the current top 20 on the gated leaderboard. The leaders below clear an evidence floor of B- before price counts at all, so cheap alone never earns a rank.
- 1AWorth itCreatine evidence A-~$5-10/mo
- 2AWorth itCaffeine evidence B+~$5-10/mo
- 3AWorth itVitamin D evidence B~$5-8/mo
See the full worth-it leaderboard →
When the evidence moves a grade, this ranking moves with it. Thursday is where you hear it first.
Safety notes
Very benign: no upper limit set, and intakes of many grams produce little beyond diarrhea in depletion-study reports. The practical risk is the familiar one in this tier: 'adrenal fatigue' self-diagnosis delaying evaluation of real causes of exhaustion, including actual adrenal insufficiency, which is a medical emergency when it declares itself.
Longevity Lab Report
Vitamin B5 (Pantothenic Acid) news. Graded when it happens.
The grade on this page stays free. The email carries the news on Vitamin B5 (Pantothenic Acid): expert moves, dose changes, and what is working, in plain English every Thursday.
Changelog
Last updated 2026-10-23
- 2026-10-23|Graded from the adrenal-fatigue systematic review and the single acne trial. The vitamin's name, from the Greek 'pantos' (everywhere), is its evidence summary in reverse: it is everywhere in food, so deficiency is almost unheard of, so supplementation has almost nothing to correct.
- 2026-10-23|Not listed under stress or any other goal: the stress-marketed claim is the one this record finds empty.
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This grade for Vitamin B5 (Pantothenic Acid) rests on the record above. When a new result changes that record, the grade changes with it, and the Thursday email is where the change lands first: the week's longevity and biohacking news, in plain English, linked back to the reasoning on this page.
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