Pantothenic Acid (Vitamin B5): Energy, Skin, and Research

There are vitamins that dominate the headlines and others that almost no one talks about, even though life without them is impossible for even a single day. Pantothenic acid, better known as vitamin B5, definitely belongs to the second group. It is one of the most essential substances in the body, a key component of the molecule that drives all our energy metabolism, and yet almost no one takes it as a separate supplement, and for good reason.

This paradox is the whole story of B5. On one hand, it is absolutely essential: without pantothenic acid, our cells cannot produce energy or build fat, and a severe deficiency would be fatal. On the other hand, precisely because it is so fundamental, nature has distributed it in almost every food that exists. The name pantothenic itself comes from Greek and means 'from everywhere.' The result: a true deficiency of this vitamin is one of the rarest there is, and when there is no deficiency, supplementation is almost worthless. This is why we rated pantothenic acid yellow, and in this article, we will explain exactly why.

What is Pantothenic Acid (Vitamin B5)?

Pantothenic acid is a B-complex vitamin, water-soluble, which the body does not store in large amounts and needs to receive regularly from food. Here is what is important to understand about it:

• It is the raw material for coenzyme A. This is its main function. Coenzyme A (abbreviated CoA) is one of the most important molecules in every cell, and pantothenic acid is its building block. Without B5, there is no CoA, and without CoA, there is no life.
• It sits at the heart of energy production. Coenzyme A is essential at every stage of the Krebs cycle, the cellular mechanism that produces most of the energy (ATP) from carbohydrates, fats, and proteins. It is also necessary for building fatty acids and producing hormones.
• It is found in almost every food. Meat, poultry, eggs, dairy products, legumes, whole grains, avocado, mushrooms, vegetables, and sweet potatoes all contain B5. This is precisely why deficiency is so rare.
• It is water-soluble and especially safe. Excess pantothenic acid is excreted in urine, making its toxicity almost negligible.

The recommended daily allowance for an adult is relatively low, about 5 mg per day, and this amount is easily obtained from a normal, varied diet. In fact, health organizations have not even been able to set a precise RDA but only an estimated 'adequate intake,' because there is almost never a deficiency state to study.

Why Deficiency is So Rare: The 'From Everywhere' Mechanism

To understand why pantothenic acid is an almost unnecessary supplement, you need to understand the biological logic behind the rarity of its deficiency. Coenzyme A is so fundamental to cell function that evolution ensured its building block is available in almost everything we eat. A vitamin found in only one or two foods (like B12, which comes mainly from animal sources) is easy to miss. A vitamin found in meat, eggs, legumes, grains, and vegetables alike is almost impossible to miss.

This is the fundamental difference between pantothenic acid and other B-complex vitamins that sometimes justify supplementation. B12 has clear risk groups (vegans, elderly, absorption issues). B5 has almost none. The only deficiency documented definitively in research was in controlled experiments where volunteers were given an artificial diet completely devoid of B5, or a substance that blocks its absorption. Only in such an artificial state did symptoms appear.

The practical conclusion is simple. If you eat real, varied food, you are getting all the pantothenic acid you need, and more. An additional dose from a supplement will add nothing except yellow color to your urine.

Current Evidence

Study 1: Pantothenic Acid for Acne, Yang 2014

The only use that has received real research attention is the treatment of acne. In 2014, a randomized, double-blind, placebo-controlled study was published in the journal Dermatology and Therapy, led by Michael Yang, which tested a pantothenic acid-based supplement in people with mild to moderate facial acne.

The study involved 41 people who were randomly divided into two groups: one received a B5 supplement at a dose of about 2.2 grams per day (a very high dose, hundreds of times the RDA) and the other received a placebo, for 12 weeks. In the pantothenic acid group, there was a reduction of more than 67% in the total number of facial acne lesions at the end of the period, with a significant reduction in non-inflammatory lesions. The supplement was found to be safe and well-tolerated.

Sounds impressive, but here caution and honesty are needed. This is a very small study (only 41 participants), it was funded by a commercial entity with an interest in the outcome, and no large, independent studies have followed up to confirm the findings. In terms of evidence-based medicine, this is weak, isolated evidence, far from the substantiation that standard acne treatments like topical retinoids, benzoyl peroxide, or medication have. The proposed mechanism (influence on fatty acid production and sebum secretion from the skin) is theoretically plausible but unproven. Therefore, if you are dealing with acne, pantothenic acid is at most a secondary attempt and not a first-line treatment.

Study 2: Official Nutrition Reviews, The Rare Deficiency

The big picture emerges clearly from comprehensive reviews by health and nutrition bodies. The U.S. National Institutes of Health (NIH), the Linus Pauling Institute, and the 2023 Nordic Nutrition Recommendations all agree on the same thing: pantothenic acid deficiency is extremely rare, and its toxicity is negligible.

The reviews document that symptoms of severe deficiency, when artificially induced in research through an artificial diet, include fatigue, headache, tingling and pain in the feet (a phenomenon called 'burning feet syndrome'), nausea, and mood disturbances. But the consistent message is that almost no one in the Western world reaches this state, because the vitamin is everywhere. This is precisely scientific evidence that routine supplementation is unnecessary for the vast majority of people.

Study 3: B5 and Energy, What Research Didn't Find

Despite pantothenic acid being central to energy production at the biochemical level, there is no evidence that supplementing it improves energy levels, physical performance, or alertness in healthy people who are not deficient. This is one of the classic gaps between 'what the substance does in the cell' and 'what the supplement does for the person.'

The logic is simple: if the cellular production line is already getting all the pantothenic acid it needs, adding more will not speed it up. Correcting a deficiency fixes a problem, but flooding a saturated system gives nothing. This is the principle that repeats for almost every B-complex vitamin, and it is why 'energy' supplements based on B5 are mostly marketing. Anyone experiencing chronic fatigue would do better to investigate the real cause (sleep, iron, thyroid, B12) rather than assume pantothenic acid will solve it. To check which supplements are truly suitable for an energy goal based on your age, sex, and condition, you can use our personal supplement checker that rates each supplement by the quality of evidence.

What About Skin and Hair Health?

Beyond acne, pantothenic acid is sometimes marketed for strengthening skin and hair, often in the form of its derivative panthenol (pro-vitamin B5) in topical preparations like creams and shampoos. Here it is important to distinguish between two completely different things: topical panthenol on the skin and oral intake of B5.

Topical panthenol does help moisturize and soothe the skin, which is why it is a common ingredient in skincare products. But this is not related to taking an oral supplement. There is no quality evidence that taking an oral pantothenic acid supplement improves hair appearance, prevents hair loss, or strengthens nails in someone who is not deficient. These claims are mainly based on the marketing of complex 'beauty' supplements, not on dedicated research that isolated B5. If skin health is your goal, the truly evidence-based recommendations (sun protection, retinoids, moisturizing) are far more relevant.

Should You Start Taking Pantothenic Acid?

This is why we rated pantothenic acid yellow, not green and not red. The yellow rating here reflects a very specific picture: the vitamin is completely safe, but it is almost never needed as a separate supplement. It is not dangerous; it is simply usually unnecessary.

• For most people, there is no reason to supplement. A varied diet easily provides all the B5 needed. A separate supplement is a waste of money in most cases.
• For acne, only one weak piece of evidence. If you have tried other things and want to try it, it is safe, but do not expect a miracle and do not give up on evidence-based dermatological treatment because of it.
• As an energy supplement, no proven benefit. It is not a stimulant or nootropic for a well-nourished person.
• It usually comes anyway in a B-complex or multivitamin. If you are taking one of these, you are already getting B5; no need to add more.

In terms of safety, pantothenic acid is considered one of the safest supplements. It is water-soluble and excess is excreted in urine, so no official tolerable upper intake level has been set. However, at very high doses (several grams per day, as in the acne study), gastrointestinal effects like diarrhea and abdominal pain have sometimes been reported, and in very rare cases, a skin reaction has been described. There are almost no significant drug interactions. The main practical caveat is simple: there is no need to take huge doses, and almost always no need to take it at all.

What to Take Away from the Research?

1. Do not buy a separate pantothenic acid supplement 'just in case.' If you eat a varied diet, you are already saturated with it, and the supplement will contribute nothing.
2. If you are dealing with acne, first turn to established treatments (topical retinoids, benzoyl peroxide, and for moderate cases and above, consultation with a dermatologist). B5 is at most a safe secondary attempt, not a first line.
3. If you are looking for energy, start with blood tests (iron, B12, thyroid function), sleep, and diet. B5 is not the answer.
4. If you are already taking a B-complex or multivitamin, check the label: pantothenic acid is likely already there, and no additional supplement is needed.
5. Diet before supplement. Meat, eggs, legumes, avocado, mushrooms, and whole grains provide plenty of B5 naturally, along with dozens of other components that a single supplement will not provide.

Anyone who still wants to try it, for example for a safe attempt against acne, can purchase pantothenic acid (vitamin B5) on iHerb in various dosages. However, it is important to remember: for most people, this is one of the easiest supplements to skip.

The Broader Perspective

Pantothenic acid is a perfect example of a principle that is easy to confuse: biological essentiality is not the same as supplement benefit. There is hardly a substance more essential than B5; it is at the heart of all energy production in the body, and yet it is one of the least beneficial supplements you can buy. The reason is simple: nature has already ensured you get it in abundance from your plate.

The practical lesson: Always ask not 'is the substance important' but 'am I deficient in it'. An important vitamin that you are not deficient in is not an opportunity for improvement; it is just another expensive, yellow urine output. In a world that tries to sell you every essential molecule as a miracle supplement, the ability to distinguish between 'essential' and 'deficient in me' is exactly what separates smart supplement use from wasting money. And this is the perspective we try to maintain here: to rate each supplement according to what the science actually shows, and for whom it is truly necessary.

References:
Yang M. 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;4(1):93-101 (DOI: 10.1007/s13555-014-0052-3)
NIH Office of Dietary Supplements, Pantothenic Acid: Fact Sheet for Health Professionals
Linus Pauling Institute, Oregon State University, Pantothenic Acid (Vitamin B5)