Vitamin B5
Useful mainly for preventing deficiency (rare); a topical/oral option explored for acne.
Quick decision guide
May help most
Preventing deficiency (rare); a topical/oral option explored for acne
Common dosing range
5 mg/day adequate intake; 10–100 mg in supplements
When to expect effects
Weeks for acne or lipid effects
Watch out for
Very safe; only very high doses cause mild GI upset
What is it
Vitamin B5 (pantothenic acid) is a water-soluble B-vitamin that serves as a precursor to coenzyme A (CoA) and acyl carrier protein. CoA is essential for synthesizing and metabolizing fatty acids, cholesterol, steroid hormones, and the neurotransmitter acetylcholine.
Is it worth it for you?
Use this as a quick fit check, not a diagnosis.
Worth considering if…
Probably skip if…
Evidence at a glance
| Goal | Effect | Best fit | Time |
|---|---|---|---|
pantothenic acid deficiency Strong Evidence | Corrects deficiency | People with rare true deficiency or markedly inadequate intake | Weeks |
acne vulgaris Limited Evidence | Modest reduction in lesions | People with mild-to-moderate acne trying it as an adjunct | Weeks |
cholesterol lowering (pantethine form) Limited Evidence | Modest lipid reductions | Adults with mild dyslipidemia using the pantethine form | Weeks |
pantothenic acid deficiency
- Effect
- Corrects deficiency
- Best fit
- People with rare true deficiency or markedly inadequate intake
- Time
- Weeks
acne vulgaris
- Effect
- Modest reduction in lesions
- Best fit
- People with mild-to-moderate acne trying it as an adjunct
- Time
- Weeks
cholesterol lowering (pantethine form)
- Effect
- Modest lipid reductions
- Best fit
- Adults with mild dyslipidemia using the pantethine form
- Time
- Weeks
Evidence for 3 uses
AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.
pantothenic acid deficiency
Corrects deficiencyPantothenic acid is the precursor to coenzyme A, required for energy metabolism and synthesis of fatty acids, hormones, and acetylcholine. Supplementation corrects deficiency, though true deficiency is exceedingly rare because the vitamin is widespread in foods.
Bottom line: Corrects the rare pantothenic acid deficiency.
acne vulgaris
Supplement benefitA few small studies, including a randomized trial of a pantothenic-acid-based formulation, report modest reductions in facial acne lesions. Evidence is limited and the mechanism is not firmly established.
Bottom line: May modestly reduce acne lesions, but evidence is limited.
cholesterol lowering (pantethine form)
Biomarker supportThe pantethine form of vitamin B5 has shown modest reductions in total and LDL cholesterol and triglycerides in small studies. These are biomarker changes, and cardiovascular outcomes have not been demonstrated.
Bottom line: Pantethine may modestly improve lipid markers, but clinical outcomes are unproven.
How it works
How to take it
What to track
3 commercial forms
Compare the main delivery options and what they’re best suited for.
Calcium pantothenate
The most common form in multivitamins and B-complexes. Inexpensive and effective.
Standard supplement form, well absorbed.
Pantethine
More expensive than calcium pantothenate. Used specifically for lipid management at 600-900 mg/day.
Disulfide form of pantothenic acid; appears to have additional lipid effects.
Dexpanthenol (panthenol)
Most commonly used topically in skincare for moisturization and barrier repair.
Alcohol form; converts to pantothenic acid in tissues.
Safety
Know the common side effects, key cautions, and who should avoid it.
Common side effects
Who should avoid it
- No specific contraindications
Pregnancy & breastfeeding
Considered safe; needs are slightly higher in pregnancy and lactation but supplementation is rarely required.
Interactions
May modestly potentiate cholinergic effects
Also contains pantothenic acid and may add to the effect
Protocols featuring Vitamin B5
Evidence-backed routines where Vitamin B5 plays a role.
Trimester 1 Prenatal
maternal
The first trimester is the highest-stakes window of pregnancy nutritionally. Neural tube formation completes by week 4-6 (often before pregnancy is even known), organogenesis is in full swing, and the most common early-pregnancy symptom — morning sickness — affects 70-85% of pregnancies. This protocol covers the four nutritional priorities for trimester 1: a methylfolate-containing prenatal (the single most-evidenced intervention in obstetric nutrition for preventing neural tube defects), vitamin B6 + ginger for nausea (both ACOG-supported as first-line), choline for fetal brain and liver development (commonly under-consumed), and iron when ferritin is confirmed low. This protocol replaces your Fertility Prep — Women stack once pregnancy is confirmed. Many supplements that were fine pre-conception (ashwagandha, vitex, berberine, high-dose vitamin A, certain herbal blends) are contraindicated in pregnancy. Coordinate every supplement with your OB.
PMS Support
hormones
Premenstrual syndrome affects up to 75% of menstruating women in some form. The supplement literature is unusually solid here — magnesium, B6, calcium, and chasteberry each have multiple randomized trials supporting their use for the physical and emotional symptoms of PMS. Effect sizes are real but modest, and the stack works best when taken consistently across the cycle rather than only in the luteal phase. Severe PMS or PMDD warrants a conversation with your doctor — supplements are first-line for mild-to-moderate symptoms, not a substitute for proper care in severe cases.
Food sources
| Food | Amount | %DV |
|---|---|---|
| Beef liver (3 oz, cooked) | 8.3 mg | — |
| Shiitake mushrooms (1/2 cup, cooked) | 2.6 mg | — |
| Chicken breast (3 oz, cooked) | 1.3 mg | — |
| Avocado (1 medium) | 2.0 mg | — |
| Eggs (1 large) | 0.7 mg | — |
| Sunflower seeds (1 oz) | 2.0 mg | — |
| Yogurt (1 cup) | 1.3 mg | — |
| Sweet potato (1 medium, baked) | 1.0 mg | — |
Beef liver (3 oz, cooked)
- Amount
- 8.3 mg
- %DV
- —
Shiitake mushrooms (1/2 cup, cooked)
- Amount
- 2.6 mg
- %DV
- —
Chicken breast (3 oz, cooked)
- Amount
- 1.3 mg
- %DV
- —
Avocado (1 medium)
- Amount
- 2.0 mg
- %DV
- —
Eggs (1 large)
- Amount
- 0.7 mg
- %DV
- —
Sunflower seeds (1 oz)
- Amount
- 2.0 mg
- %DV
- —
Yogurt (1 cup)
- Amount
- 1.3 mg
- %DV
- —
Sweet potato (1 medium, baked)
- Amount
- 1.0 mg
- %DV
- —
Choosing a product
What to look for on the label — and what to be skeptical of.
Look for…
Be skeptical of…
Frequently asked questions
Do I need a B5 supplement?⌄
Probably not. Pantothenic acid is so widely distributed in foods that deficiency is essentially unheard of in people with normal diets. Most people get adequate amounts without supplementing.
Does B5 help with acne?⌄
Small studies suggest high-dose pantothenic acid (2-10 g/day) may reduce acne lesions, but the evidence base is limited and the doses required are very high. Standard acne treatments have stronger evidence.
What's the difference between pantothenic acid and pantethine?⌄
Pantethine is a downstream form of B5 with specific evidence for lowering cholesterol at 600-900 mg/day. Pantothenic acid (usually as calcium pantothenate) is the standard form for general B-vitamin support.
Is panthenol the same as B5?⌄
Panthenol (dexpanthenol) is the alcohol form of pantothenic acid. It converts to B5 in the body and is widely used in skincare to support moisturization and barrier function.
Is high-dose B5 safe?⌄
Pantothenic acid has an excellent safety profile with no established upper limit. Doses above 10 g/day may cause mild diarrhea, but serious toxicity has not been reported.
References by claim
Track Vitamin B5 with Pilora
Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.
Coming to App StoreDisclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.