Pantothenic acid, also known as vitamin B5, is used by your body to produce coenzyme A (CoA), a molecule involved in hundreds of biochemical reactions including energy production, fat metabolism, and hormone synthesis. Beyond its essential biological role, pantothenic acid and its derivatives are used therapeutically for acne, wound healing, and cholesterol management. It’s a water-soluble B vitamin found widely in food, which is how it got its name: “pantos” is Greek for “everywhere.”
How Your Body Uses Pantothenic Acid
The primary job of pantothenic acid is serving as the building block for coenzyme A. Your cells need CoA to break down fats, carbohydrates, and proteins into usable energy. It’s also essential for building fatty acids, which form cell membranes throughout your body. Without adequate CoA, these fundamental metabolic processes slow down.
CoA participates in cell growth, neurotransmitter production, and what scientists call “intermediary metabolism,” which is essentially the web of chemical reactions that keeps your cells running. It also plays a role in synthesizing steroid hormones and maintaining healthy skin, hair, and nails. The vitamin’s influence on acetylcholine, a key neurotransmitter involved in memory and muscle control, is one reason severe deficiency can lead to neurological problems.
Acne and Skin Health
One of the most popular supplemental uses of pantothenic acid is for acne. A randomized, double-blind clinical trial published in Dermatology and Therapy tested a pantothenic acid-based supplement (2.2 grams per day) against a placebo over 12 weeks. Participants taking the supplement saw a 68% reduction in total facial lesions compared to placebo. The study focused on mild to moderate acne, so results for severe cases are less clear.
Topically, a derivative called dexpanthenol is widely used in wound-healing creams and post-procedure skincare. Dexpanthenol supports skin regeneration by enhancing the way skin cells differentiate and mature. Clinical studies show it accelerates wound healing by promoting faster re-epithelialization, which is the process of new skin growing over a wound. Gene expression research found that applying dexpanthenol topically activated multiple genes involved in tissue repair. This is why you’ll find it as an ingredient in many healing ointments, diaper rash creams, and post-laser skincare products.
Cholesterol and Heart Health
Pantethine, a derivative of pantothenic acid, has been studied for its effect on blood lipids. In a triple-blinded, placebo-controlled trial, participants taking pantethine experienced an 11% decrease in LDL cholesterol from baseline over 16 weeks, while the placebo group actually saw a 3% increase. The study focused on people with low to moderate cardiovascular risk who would otherwise be candidates for statin therapy. Pantethine is not the same as pantothenic acid itself, so standard B5 supplements won’t produce this effect.
Deficiency Symptoms
True pantothenic acid deficiency is rare because the vitamin is present in so many foods. When it does occur, the hallmark symptom is burning feet syndrome: a sensation of numbness and burning in the feet that can be quite uncomfortable. Other deficiency signs include fatigue, weakness, restlessness, sleep disturbances, muscle cramps, and irritability. Severe or prolonged deficiency can contribute to problems with acetylcholine production, potentially leading to neurodegeneration and myelin loss, the protective coating around nerve fibers.
How Much You Need
There is no formal Recommended Dietary Allowance for pantothenic acid because deficiency is so uncommon. Instead, the Institute of Medicine sets an Adequate Intake (AI) level:
- Adults (19 and older): 5 mg per day
- Pregnant women: 6 mg per day
- Children ages 4 to 8: 3 mg per day
- Children ages 9 to 13: 4 mg per day
- Children ages 1 to 3: 2 mg per day
No Tolerable Upper Intake Level has been established, meaning there isn’t enough evidence of toxicity to set a ceiling. That said, very high doses (multiple grams per day, as in acne studies) can cause digestive discomfort like diarrhea in some people. Because it’s water-soluble, excess pantothenic acid is excreted in urine rather than stored in fat tissue.
Food Sources
Pantothenic acid is found in virtually all food groups, making it easy to meet your daily needs through diet alone. Rich sources include beef liver, chicken, sunflower seeds, mushrooms, avocados, eggs, and dairy products like yogurt and milk. Whole grains contain meaningful amounts, though milling and processing can reduce the vitamin content significantly. Legumes, broccoli, and sweet potatoes also contribute. Most people eating a varied diet get more than enough without thinking about it, which is why supplementation is typically reserved for specific therapeutic goals rather than preventing deficiency.