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Pantothenic Acid

Evidence Level
Strong
4 Clinical Trials
6 Documented Benefits
4/5 Evidence Score

Pantothenic acid, or vitamin B5, is a water-soluble vitamin essential for synthesizing coenzyme A, which supports energy metabolism by breaking down carbohydrates, fats, and proteins. Found in a wide range of foods like liver, mushrooms, avocados, and whole grains, it also promotes healthy skin and hormone production.

Studied Dose AI (Adequate Intake): 5 mg/day adults (no RDA). PREGNANCY: 6 mg/day. LACTATION: 7 mg/day. ACNE: 2.2 g/day × 12 wk vs placebo. LIPID MANAGEMENT: 500-1,000 mg/day (pantethine more effective for this — see separate entry).
Active Compound Vitamin B5 (Pantothenic Acid)
Deficiency information View details

Pantothenic acid (vitamin B5) deficiency is essentially unheard of in healthy people because B5 is found in virtually all foods (the name comes from the Greek 'pantos,' meaning 'everywhere'). Isolated deficiency has only been observed in experimental conditions or in severe malnutrition combined with other B-vitamin deficiencies.

Common symptoms

  • Fatigue, irritability, restlessness
  • Sleep disturbances
  • Headache
  • Numbness or tingling in hands and feet
  • Muscle cramps
  • Burning sensation in feet ('burning feet syndrome' described in WWII POWs)
  • GI symptoms — nausea, vomiting, abdominal pain
  • Most cases occur alongside multiple B-vitamin deficiencies, making isolated symptoms rare

At-risk groups

  • People with severe malnutrition (typically alongside other B-vitamin deficiencies)
  • People with rare genetic disorders affecting pantothenate metabolism (PKAN)
  • People on long-term parenteral nutrition without adequate supplementation
  • Note: Routine B5 supplementation is generally unnecessary for healthy people on a varied diet
When to see a doctor: Isolated B5 deficiency is so rare that suspected deficiency symptoms (numbness, burning feet, fatigue) almost always indicate a different cause — often deficiencies of other B vitamins, neuropathy from diabetes, or another underlying condition. A doctor can identify the actual cause.
Explore related deficiencies →
Sources: NIH ODS — Pantothenic Acid Health Professional Fact Sheet · Vitamin B (LiverTox) — NCBI Bookshelf NBK548710

Benefits

Supports Energy Metabolism

Pantothenic acid is a critical component of coenzyme A, which is vital for metabolizing carbohydrates, fats, and proteins into energy, supporting cellular functions and ATP production.

Supported by Trial 4, Trial 1

Promotes Skin and Hair Health

RCT (n=51 mild-moderate facial acne, 12 weeks, double-blind, placebo-controlled, Dermatology and Therapy 4:93-101) found 2.2 g/day pantothenic acid significantly reduced total facial lesion count vs placebo. By supporting fatty acid synthesis and cellular repair, pantothenic acid contributes to healthy skin and may reduce mild-moderate acne lesions. Dexpanthenol (the alcohol form of B5) is widely used topically (Bepanthen® and others) for wound healing and skin barrier support. Note: standard acne therapies (topical retinoids, benzoyl peroxide, antibiotics, isotretinoin) have substantially stronger evidence; B5 may be an adjunct for mild cases.

Supported by Trial 1

Aids Hormone and Cholesterol Synthesis

Coenzyme A is required for producing steroid hormones (e.g., cortisol, testosterone) and cholesterol, supporting endocrine function and overall health.

Supported by Trial 2, Trial 3

Supports Nervous System Function

Pantothenic acid is involved in synthesizing acetylcholine, a neurotransmitter essential for nerve signaling and cognitive function.

Supported by Trial 3, Trial 1

Enhances Stress Response

By aiding adrenal gland function through hormone production, pantothenic acid may help the body manage physical and metabolic stress.

Supported by Trial 3, Trial 1

Supports Red Blood Cell Production

Pantothenic acid contributes to heme synthesis, a component of hemoglobin, supporting oxygen transport in the blood.

Supported by Trial 1, Trial 3

Mechanism of action

1

Precursor to Coenzyme A (CoA)

Pantothenic acid is converted into coenzyme A, a critical molecule in energy metabolism. CoA acts as a carrier of acyl groups in enzymatic reactions, facilitating the metabolism of carbohydrates, fats, and proteins. In the citric acid cycle, CoA (as acetyl-CoA) delivers acetyl groups to produce ATP, the cell’s energy currency. CoA is also involved in fatty acid synthesis and oxidation, supporting lipid metabolism.

2

Role in Acyl Carrier Protein (ACP)

Pantothenic acid is a component of ACP, which is essential for fatty acid synthesis in mitochondria and cytosol, contributing to cell membrane formation and lipid storage.

3

Hormone and Cholesterol Synthesis

CoA is required for synthesizing steroid hormones (e.g., cortisol, testosterone) and cholesterol in the adrenal glands and other tissues, supporting endocrine function.

4

Neurotransmitter Production

Pantothenic acid, via CoA, supports the synthesis of acetylcholine, a neurotransmitter crucial for nerve signaling, muscle function, and cognitive processes.

5

Cellular Repair and Skin Health

Through its role in lipid and protein metabolism, pantothenic acid supports cell membrane integrity and tissue repair. Its derivative, dexpanthenol, is used topically to promote skin healing by enhancing fibroblast proliferation and epithelialization.

Clinical trials

1
Yang 2014 — Pantothenic Acid for Mild-Moderate Acne (Pivotal RCT)
PubMed

2014 RCT in adults with mild-to-moderate acne vulgaris evaluating safety and efficacy of pantothenic acid-based dietary supplement vs placebo for 12 weeks.

Adults with mild-moderate acne.

Yang M, Moclair B, Hatcher V et al. 2014 (Dermatol Ther 4:93-101). Randomized double-blind placebo-controlled study, n=51 adults with mild-moderate facial acne (≥50 non-inflammatory + up to 50 inflammatory lesions), 12 weeks, 2.2 g/day pantothenic acid-based supplement. RESULT: significantly reduced total facial lesion count vs placebo. Well-tolerated. CAVEAT: standard acne management uses topical retinoids (tretinoin, adapalene), benzoyl peroxide, topical/oral antibiotics, and isotretinoin (Accutane) for severe acne — all with much stronger evidence. May be adjunctive for mild cases.

2
Coenzyme A vs Pantethine for Dyslipidemia — RCT
PubMed

2015 double-blind RCT in 216 adults with moderate dyslipidemia comparing 400 mg/day coenzyme A (CoA) vs pantethine. Outcomes: lipid profile.

216 dyslipidemic adults.

Both CoA and pantethine reduced lipid parameters; effects modestly comparable. Note: small head-to-head trial; different populations may respond differently. Statin therapy remains first-line for high-risk dyslipidemia.

3
Dexpanthenol (Topical) for Atopic Dermatitis
PubMed

Clinical study comparing dexpanthenol (an alcoholic analog of pantothenic acid) with hydrocortisone for treating atopic dermatitis.

Atopic dermatitis patients.

Dexpanthenol modestly improved skin barrier function and atopic dermatitis symptoms. Note: dexpanthenol is an established TOPICAL ingredient (Bepanthen®, others) for skin barrier support; less potent than topical corticosteroids for inflammation but useful for maintenance.

4
Cerebral Pantothenic Acid Deficiency in Alzheimer's — Mechanistic Study
PubMed

2020 study exploring cerebral pantothenic acid deficiency in Alzheimer's disease patients, using biochemical analysis of post-mortem brain tissue.

Post-mortem AD vs control brains.

AD brain tissue showed reduced pantothenic acid levels in specific regions. CRITICAL CAVEAT: this is a MECHANISTIC FINDING in post-mortem tissue — does NOT establish that pantothenic acid supplementation prevents or treats AD. Tempting hypothesis for future research but NOT clinical evidence.

Side effects and drug interactions

Common Potential side effects

Gastrointestinal Issues: High doses (>1,000 mg/day) may cause mild diarrhea, nausea, or stomach discomfort in some individuals.
Allergic Reactions: Very rare cases of hypersensitivity reactions, such as skin rashes or itching, have been reported with large doses.

Important Drug interactions

Cholinesterase inhibitors (donepezil, rivastigmine) — pantothenic acid is a precursor to acetylcholine; may have additive cholinergic effects
Oral contraceptives — may increase pantothenic acid requirements
No clinically significant interactions established at standard supplemental doses (up to 1,000 mg/day)
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Frequently asked questions about Pantothenic Acid

What is Pantothenic Acid?

Pantothenic acid, or vitamin B5, is a water-soluble vitamin essential for synthesizing coenzyme A, which supports energy metabolism by breaking down carbohydrates, fats, and proteins.

What does Pantothenic Acid do?

Pantothenic acid is converted into coenzyme A, a critical molecule in energy metabolism. CoA acts as a carrier of acyl groups in enzymatic reactions, facilitating the metabolism of carbohydrates, fats, and proteins. In clinical research, Pantothenic Acid has been studied for supports energy metabolism, promotes skin and hair health, aids hormone and cholesterol synthesis.

Who should take Pantothenic Acid?

Pantothenic Acid may be most beneficial for: People with severe malnutrition (typically alongside other B-vitamin deficiencies); People with rare genetic disorders affecting pantothenate metabolism (PKAN); People on long-term parenteral nutrition without adequate supplementation; Note: Routine B5 supplementation is generally unnecessary for healthy people on a varied diet. As with any supplement, consult your healthcare provider before starting, especially if you have medical conditions or take prescription medications.

How long does Pantothenic Acid take to work?

In clinical trials, effects typically appear over 12+ weeks of consistent use. Acute or same-day effects (where applicable) typically appear within hours, but most cumulative benefits — particularly those affecting biomarkers, mood, sleep quality, or chronic symptoms — require 4-12 weeks of regular use to fully assess. If you don't notice benefit after 12 weeks at the appropriate dose, it may not be your responder.

When is the best time to take Pantothenic Acid?

For performance or energy goals, Pantothenic Acid is typically taken 30-60 minutes before exercise or in the morning. Some people take it with food to reduce GI sensitivity; others prefer empty-stomach timing for faster absorption. Always check product labeling and follow personalized guidance from your healthcare provider.

Is Pantothenic Acid worth taking?

Pantothenic Acid has strong clinical evidence (Evidence Level 4/5 on NutraSmarts) for its primary uses, with multiple randomized controlled trials and meta-analyses supporting its benefits. Whether it's worth taking depends on your specific goals, what you've already tried, your budget, and your overall supplement strategy. The honest framing: no supplement is essential for most people, and lifestyle factors (sleep, exercise, diet, stress management) typically produce larger effects than any single supplement. Pantothenic Acid is most worth trying if its evidence-supported uses align with your specific goals.

What is the recommended dosage of Pantothenic Acid?

The clinically studied dose for Pantothenic Acid is AI (Adequate Intake): 5 mg/day adults (no RDA). PREGNANCY: 6 mg/day. LACTATION: 7 mg/day. ACNE: 2.2 g/day × 12 wk vs placebo. LIPID MANAGEMENT: 500-1,000 mg/day (pantethine more effective for this — see separate entry).. Always follow product labeling and consult a healthcare provider for personalized dosing recommendations.

What is Pantothenic Acid used for?

Pantothenic Acid is studied for supports energy metabolism, promotes skin and hair health, aids hormone and cholesterol synthesis. Pantothenic acid is a critical component of coenzyme A, which is vital for metabolizing carbohydrates, fats, and proteins into energy, supporting cellular functions and ATP production.