Condition
    Effectiveness 2/5

    Vitamin B5 for Acne & Breakouts

    The high-dose B5 acne protocol rests on a single uncontrolled 1997 study; one later randomized trial of a lower-dose pantothenic acid formulation found modest lesion reduction.

    Overview

    The high-dose B5 acne protocol rests on a single uncontrolled 1997 study; one later randomized trial of a lower-dose pantothenic acid formulation found modest lesion reduction.

    Verdict

    Insufficient evidence

    Not enough controlled evidence to recommend, and the multi-gram doses circulating online reliably cause diarrhoea without proven benefit.

    How It Works

    Proposed mechanism is that coenzyme A saturation increases fatty acid oxidation and reduces sebum production — a hypothesis that has never been directly tested in humans.

    Dosing & Protocol

    Typical dose

    Recommended dose
    No evidence-based dose; the popular protocol uses 2-10 g/day
    Expected timeframe
    Not established

    Protocol

    form
    Not applicable
    duration
    Not applicable
    co factor
    Evidence is insufficient. Pantothenic acid has been studied at very high doses - a widely cited protocol used up to 10 g/day, and a randomised trial used a 2.2 g/day pantothenic-acid-based supplement for 12 weeks, reporting a modest reduction in inflammatory lesions. The trial base is one small industry-linked study plus uncontrolled reports, at doses hundreds of times nutritional intake, so this cannot be called established.
    titration
    Not applicable
    starting dose
    Not applicable as an established treatment

    Evidence

    What the studies say

    The origin of this protocol is a 1997 open-label report by Leung describing 45 patients taking 10 g/day of pantothenic acid with apparent sebum reduction and lesion clearance. There was no control group, no blinding and no independent replication, which places it outside the standard of evidence used anywhere else in dermatology. The only randomized data came much later: a 12-week double-blind trial of 41 adults using a pantothenic acid-based supplement at a far lower dose reported a statistically significant reduction in total lesion count versus placebo, but the product was a multi-ingredient formulation and the effect was modest. The proposed coenzyme A sebum mechanism has never been demonstrated in human sebaceous tissue. Practically, multi-gram doses cause diarrhoea in most people. Benzoyl peroxide, topical retinoids and, where appropriate, prescription therapy have vastly better-characterised effects.

    A randomized, double-blind, placebo-controlled study of a novel pantothenic acid-based dietary supplement in subjects with mild to moderate facial acne

    Score: 5/10
    2014
    rct
    n=48

    Yang M, Moclair B, Hatcher V +4 more

    A pantothenic acid-based supplement significantly reduced total and inflammatory facial acne lesions versus placebo.

    View source

    Safety

    Caveats

    Acne has treatments with strong evidence - topical retinoids, benzoyl peroxide, topical and oral antibiotics, combined oral contraceptives and isotretinoin. Scarring acne should be treated early and properly, since scars are permanent. Safety ceiling: no tolerable upper intake level exists for pantothenic acid, but the gram-level doses used here are far outside nutritional range and commonly cause diarrhoea; there are case reports of skin reactions at high doses. High-dose biotin sometimes included in these products interferes with laboratory assays including troponin and thyroid tests, which can cause dangerous misdiagnosis - tell your doctor. Nutritional doses are safe in pregnancy; gram-level doses are not established - avoid.

    Less likely to help if

    People with moderate to severe or scarring acne, who need dermatological treatment.

    Medical Disclaimer

    The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.

    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.