Vitamin B5 (Pantothenic Acid)
Published on December 20, 2025 by Guy
Vitamin B5 (Pantothenic Acid) is a water-soluble B vitamin essential for converting food into energy and producing stress hormones. Often called the "anti-stress vitamin," B5 is critical for adrenal gland function and is found in virtually all foods—its name derives from the Greek word "pantos," meaning "everywhere." It forms Coenzyme A (CoA), which participates in over 100 metabolic reactions including fatty acid synthesis, hormone production, and neurotransmitter formation.
Effects and Benefits
Core Identification
Common Names:
- Vitamin B5
- Pantothenic Acid
- Pantothenate
- Calcium Pantothenate (supplement form)
- Pantethine (active form)
- Dexpanthenol (topical form)
- The "Anti-Stress Vitamin"
Latin Name: N/A (not applicable for vitamins)
Category: Vitamin
Uses
Traditional Uses
- General tonic for fatigue and weakness - Used in nutritional therapy since the mid-20th century
- Adrenal support during periods of stress - Traditional use in naturopathic medicine
- Hair and skin health - Added to cosmetics and hair products for decades
Modern Uses
- Adrenal Support & Stress Response - Critical for production of adrenal hormones including cortisol | Research quality: Strong
- Key findings: Vitamin B5 plays a central role in the production of adrenal gland hormones during times of stress and is the most important B vitamin for stress relief
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Source citations: Brewer, Encyclopedia of Vitamins; Gladstar, Herbal Recipes for Vibrant Health
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Energy Production & Chronic Fatigue - Essential for Coenzyme A formation, which drives cellular energy metabolism | Research quality: Strong
- Key findings: Doses up to 1g daily may be taken to treat chronic fatigue; B5 helps overcome fatigue and indigestion
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Source citations: Brewer, Encyclopedia of Vitamins; Curtis, Neal's Yard Remedies
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Wound Healing & Skin Repair - Stimulates cell growth in healing tissues | Research quality: Moderate
- Key findings: B5 increases the number and speed of cells moving into wounds, increases cell division rate, improves protein synthesis, and encourages stronger scar tissue formation; helps rejuvenate aging skin
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Source citations: Brewer, Encyclopedia of Vitamins
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Hair Health - May reduce hair loss and improve hair structure | Research quality: Preliminary
- Key findings: Has been shown to reduce hair loss and thicken hair structure in some women; added to shampoos for hair color and lustre, though evidence for these claims is limited
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Source citations: Brewer, Encyclopedia of Vitamins
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Acne Support - Some research suggests link between B5 deficiency and acne | Research quality: Preliminary
- Key findings: Some researchers believe there is a link between acne and lack of pantothenic acid; high-dose B5 has been studied for acne treatment
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Source citations: Brewer, Encyclopedia of Vitamins
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Hepatitis A Support - May improve liver function in viral hepatitis | Research quality: Moderate
- Key findings: When given to 156 patients with hepatitis A, calcium pantothenate and pantethine improved liver function tests, increased blood antibody levels, and enhanced white blood cell activity; pantethine produced the most pronounced effect
- Source citations: Brewer, Encyclopedia of Vitamins
Active Compounds
Primary Active Ingredients:
- Pantothenic Acid - The vitamin itself; converted to Coenzyme A in the body
- Coenzyme A (CoA) - The active metabolite; essential cofactor for over 100 enzymatic reactions involving fatty acid synthesis, energy metabolism, and hormone production
- Pantethine - The active, pre-converted form; more readily utilized by the body; particularly effective for cholesterol management and liver support
Dosage Information
Standard Dosage:
- Form: Capsule, tablet, or as part of B-Complex
- Amount: 5-10 mg per day (adequate intake)
- Frequency: Once daily with food
Therapeutic Dosage:
- Form: Capsule or tablet (calcium pantothenate or pantethine)
- Amount: 100-500 mg per day for general support; up to 1,000 mg (1g) for chronic fatigue
- Purpose: Adrenal support, energy enhancement, stress management
- Duration: Can be taken ongoing; water-soluble and excreted when in excess
Maximum Safe Dosage:
- Daily maximum: No established upper limit
- Warning threshold: Very high doses (10+ grams) may cause diarrhea; otherwise extremely safe
Bioavailability Notes:
- Approximately 50% of dietary pantothenic acid is absorbed
- Pantethine form is more bioavailable than pantothenic acid
- Best absorbed when taken with food and other B vitamins
- Older adults may require higher intakes to maintain blood levels
How to Take It
Timing:
- Best taken with meals to enhance absorption
- Morning or afternoon preferred (supports energy production)
- Should be taken as part of a B-complex or with other B vitamins for optimal effect
Synergies - What It Works Well With
Complementary Supplements:
1. B-Complex Vitamins - B vitamins work synergistically; taking one for extended periods can deplete others | Essential for balanced B vitamin status
2. Choline - B5 is required as a cofactor for acetylcholine synthesis from choline | Enhanced neurotransmitter production and cognitive function
3. Vitamin C - Both support adrenal function and stress response | Synergistic adrenal support
4. Coenzyme Q10 - Both essential for cellular energy production | Enhanced mitochondrial function
5. L-Carnitine - Both involved in fatty acid metabolism and energy production | Improved fat burning and energy
Avoidance - What NOT to Combine With
Supplement Interactions:
- None significant; B5 has no known negative interactions with other supplements
Drug Interactions:
1. No significant drug interactions - Vitamin B5 is extremely safe and has no well-documented drug interactions
Food Interactions:
- None known; B5 is enhanced by taking with food
Safety Information
Contraindications:
- None established for standard or therapeutic doses
- Those with hemophilia should use caution (theoretical concern with pantethine and blood clotting)
Side Effects:
- Rare at normal doses
- High doses (10+ grams): Diarrhea, gastrointestinal upset
- Very rare: Contact dermatitis with topical dexpanthenol in sensitive individuals
Long-Term Use:
- Safe for long-term use
- No accumulation risk as it is water-soluble
- No cycling necessary
- Should ideally be taken with other B vitamins to maintain balance
Special Precautions:
- Pregnancy: Safe at RDA levels; no concerns at standard supplemental doses
- Breastfeeding: Safe; secreted into breast milk
- Children: Safe at appropriate doses
- Surgery: No need to discontinue before surgery
Deficiency Symptoms
Symptoms that may indicate B5 deficiency include:
- Fatigue and weakness
- Headache
- Difficulty coping with stress
- Poor muscle coordination
- Muscle cramps
- Numbness and tingling sensations (paresthesia)
- Loss of appetite
- Nausea and indigestion
- Abdominal cramps
- Painful, burning feet ("burning foot syndrome")
- Increased susceptibility to infection
- Poor wound healing
- Difficulty sleeping
- Depression and irritability
Note: True B5 deficiency is rare due to its widespread presence in foods
Primary Uses At-a-Glance
Primary: Adrenal support, stress management, energy production, chronic fatigue support
Secondary: Wound healing, skin health, hair loss support, acne (high-dose), smoking cessation support
Sources
Food Sources:
- Royal jelly (richest natural source)
- Organ meats (liver, kidney)
- Egg yolk
- Whole grains
- Legumes
- Avocado
- Mushrooms
- Broccoli
- Sweet potato
- Nutritional yeast
- Bee pollen
- Spirulina
Local Library:
- Brewer, Sarah - TDT Encyclopedia of Vitamins
- Gladstar, Rosemary - Herbal Recipes for Vibrant Health
- Gladstar, Rosemary - Herbs for Long-Lasting Health
- Moline, Peg - The Doctors Book of Natural Health Remedies
- Curtis, Susan - Neal's Yard Remedies
- Bartram, Thomas - Bartram's Encyclopedia of Herbal Medicine
General Knowledge:
- Standard nutritional biochemistry references
- Clinical nutrition and supplement research