Vitamin ·Moderate evidence ·Reviewed May 2026
Essential for synthesis of coenzyme A (CoA), which is involved in hundreds of metabolic pathways including fatty acid synthesis and energy production.
The bottom line
Evidence rating moderate. Most-documented uses: energy production, hormone synthesis, wound healing. 17 sources indexed (1995–2024), with 5 interaction records on file.
Core mechanism
Converted to coenzyme A, the universal acyl carrier essential for the citric acid cycle, fatty acid synthesis and oxidation, cholesterol synthesis, acetylcholine production, and steroid hormone synthesis.16,15
Water-soluble; widely available in foods4,5
Dosing protocol
Pantothenic acid is broadly safe. Pantethine is an alternative for lipid effects.
Ranked by evidence and value.
Real-world pricing across three quality tiers. Assumes Pantothenic Acid / Pantethine.
Assumes 250-500 mg/day. Vendor basis: NOW/iHerb, Vitacost, Life Extension, and Amazon marketplace; pantethine products price above pantothenic acid. Updated 2026-05-28.
How much you'd eat to match a supplemental dose.
Food easily covers daily needs, but high-dose supplements are far above dietary intake.
What to test, the optimal window inside the conventional range, and how long a response takes.
B5 supplementation raises whole blood pantothenate, though clinical deficiency is rare.10,2
Specialty lab only. Routine testing is uncommon because dietary deficiency is rare.
Where this appears in the symptom-to-supplement map, ranked by relevance.
Vitamin B5 (pantothenic acid) supports acetylcholine synthesis and adrenal steroidogenesis, an indirect and speculative link to stress-related muscle tension.2,5
No direct bruxism data; treat as a low-priority adjunct rather than a targeted remedy.
As a precursor to coenzyme A, pantothenic acid participates in adrenal steroidogenesis, though clinical benefit for stress is unproven.15,16
Often included in B-complex; standalone benefit for adrenal stress is not established.
Pantothenic acid is traditionally linked to hair pigment in animal models, the basis for its inclusion in anti-graying folklore.2,5
Human evidence for reversing graying is essentially absent; include only as a low-risk adjunct, not a fix.
Both support adrenal function and cortisol regulation. B5 (pantothenic acid) is critical for CoA synthesis needed in adrenal steroid hormone production.
Recommendation: Combine for adrenal support, especially during periods of high stress.
Pantothenate (B5) also uses the SMVT transporter and may compete with alpha-lipoic acid for absorption.
Recommendation: Separate by 2 hours if taking high doses of either. At typical supplement doses, competition is minimal.
B5 (pantothenic acid) is required for acetyl-CoA synthesis, which combines with choline (from Alpha-GPC) to form acetylcholine.
Recommendation: Take together to support acetylcholine synthesis. B5 provides the acetyl group, Alpha-GPC provides the choline.
Both support adrenal function and cortisol regulation. B5 (pantothenic acid) is critical for CoA synthesis needed in adrenal steroid hormone production.
Recommendation: Combine for adrenal support, especially during periods of high stress.
Both vitamins ride the same SMVT carrier in the gut and at the cellular level, so they are direct competitive substrates. Cell and transfected-cell studies confirm pantothenic acid competitively inhibits biotin uptake (and vice versa), but under ordinary dietary and physiological intakes the inhibition is quantitatively minor. The interaction becomes theoretically more relevant only at the gram-level mega-doses sometimes found in standalone supplements, where one vitamin in large excess could blunt uptake of the other taken at the same moment.
Recommendation: No avoidance is needed for normal multivitamin-level intakes (biotin a few hundred mcg, B5 a few to tens of mg), where both are absorbed adequately together. If you are taking high standalone doses of one (for example, biotin 5,000 to 10,000 mcg for hair and nails, or pantothenic acid 500 mg or more), separate the two by about 2 to 3 hours to avoid same-dose transporter competition and to maximize uptake of each.
Numbered references. Citations throughout the page link here.
Pantethine (600-900 mg/day for 16 weeks) significantly decreased total cholesterol and LDL-C compared to placebo; 11% LDL decrease from baseline
Yang M, Moclair B, Hatcher V et al.. A randomized, double-blind, placebo-controlled study of a novel pantothenic Acid-based dietary supplement in subjects with mild to moderate facial acne. Dermatology and therapy. 2014
Pantethine supplementation for 16 weeks significantly lowered total cholesterol and LDL-C beyond the effect of therapeutic lifestyle changes diet alone
Vaxman F, Olender S, Lambert A et al.. Effect of pantothenic acid and ascorbic acid supplementation on human skin wound healing process. A double-blind, prospective and randomized trial. European surgical research. Europaische chirurgische Forschung. Recherches chirurgicales europeennes. 1995
Comprehensive scoping review of pantothenic acid covering dietary requirements, sources, metabolism, and health outcomes for nutrition guideline development
Choi JY, Gihaz S, Munshi M et al.. Vitamin B5 metabolism is essential for vacuolar and mitochondrial functions and drug detoxification in fungi. Communications biology. 2024
Mao C, Zheng H, Chen Y et al.. Development of a Type I-E CRISPR-Based Programmable Repression System for Fine-Tuning Metabolic Flux toward D-Pantothenic Acid in Bacillus subtilis. ACS synthetic biology. 2024
Tang J, Wu Y, Zhang B et al.. Effects of Pantothenic Acid Supplementation on Growth Performance, Carcass Traits, Plasma Parameters of Starter White Pekin Ducks Fed a Corn-Soybean Meal Diet. Animals : an open access journal from MDPI. 2021
Ferreira G, Brown AN, Teets CL. Effect of biotin and pantothenic acid on performance and concentrations of avidin-binding substances in blood and milk of lactating dairy cows. Journal of dairy science. 2015
Wall BT, Stephens FB, Marimuthu K et al.. Acute pantothenic acid and cysteine supplementation does not affect muscle coenzyme A content, fuel selection, or exercise performance in healthy humans. Journal of applied physiology (Bethesda, Md. : 1985). 2012
Giraldi G, De Luca d'Alessandro E, Mannocci A et al.. A pilot study of the effect of pantothenic acid in the treatment of post-operative ileus: results from an orthopedic surgical department. La Clinica terapeutica. 2012
Ragaller V, Lebzien P, Südekum KH et al.. Pantothenic acid in ruminant nutrition: a review. Journal of animal physiology and animal nutrition. 2011
Pantothenate is vitamin B5 and the key precursor for biosynthesis of CoA, a universal cofactor involved in synthesis of phospholipids, fatty acid metabolism, and TCA cycle
Pantothenic acid is a water-soluble vitamin essential as a component of coenzyme A (CoA) and acyl carrier protein (ACP) in hundreds of metabolic pathways
This page is educational. Do not start, stop, or change a supplement or medication based on it without checking with a qualified healthcare professional.
Use this with your stack
Add it to your stack, see how it interacts with everything else you take, and get a Stack Score that updates the moment it does.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.
NutriStack