The Role of Vitamin B5 (Pantothenic Acid) in Controlling Oily Skin and Breakouts
If you have oily, acne-prone skin, you've probably spent a lot of time and money trying to control shine and prevent breakouts from the outside. Blotting papers, mattifying primers, clay masks, salicylic acid cleansers. They help in the moment, but the oil keeps coming back.
What most people don't realize is that excess oil production is not a skincare problem. It's a nutritional one. And one vitamin in particular plays a more direct role in regulating sebum than almost anything you can apply to your face.
Vitamin B5, also known as pantothenic acid, is a water-soluble B vitamin that sits at the center of your skin's oil regulation system. When your body has enough of it, your sebaceous glands function normally. When you're deficient, they go into overdrive, producing the excess oil that clogs pores, feeds bacteria, and leads to breakouts.
The good news is that this is a gap you can actually fill. In this guide, we'll break down exactly what Vitamin B5 is, how it controls oil production at a biological level, what the research says, and how to make sure your skin is getting enough of it.
What Is Vitamin B5 (Pantothenic Acid)?
Vitamin B5 is one of eight B vitamins and is found naturally in a wide range of foods including chicken, beef, eggs, avocado, sweet potato, sunflower seeds, and whole grains. It plays a role in hundreds of metabolic processes throughout the body, but its most significant contribution to skin health is its involvement in fat and oil metabolism.
The name pantothenic comes from the Greek word "pantothen," meaning "from everywhere," because it's found in almost every food group. Despite this, many people still don't get enough of it at the levels required to meaningfully regulate sebum production in acne-prone skin.
Vitamin B5 is essential for producing Coenzyme A (CoA), a molecule that the body uses to metabolize fatty acids. This connection is what makes B5 so uniquely important for oily skin and acne, because sebum is itself a fatty substance. Without adequate CoA, the body's ability to properly break down and regulate fat including the oils in your skin becomes impaired.
How Vitamin B5 Controls Oil Production
To understand why Vitamin B5 matters so much for acne-prone skin, it helps to understand what sebum actually is and how it's made.
Sebum is an oily, waxy substance produced by the sebaceous glands beneath your skin. In healthy amounts, it's beneficial. It lubricates and protects the skin, keeps it from drying out, and has mild antimicrobial properties. The problem starts when the sebaceous glands produce too much of it.
Excess sebum mixes with dead skin cells inside hair follicles, creating the clogged environment where acne-causing bacteria (Cutibacterium acnes) thrive. This is the direct biological pathway from oily skin to breakouts.
Here's where Vitamin B5 comes in. Sebum is largely composed of fatty acids, and the production and breakdown of fatty acids depends heavily on Coenzyme A. Vitamin B5 is a critical precursor to CoA. When B5 levels are sufficient, CoA is produced in adequate quantities and fatty acids, including the lipids that make up sebum, are metabolized efficiently. The sebaceous glands function normally.
When B5 levels are low, CoA production is impaired. The fatty acids that would otherwise be metabolized start accumulating. The sebaceous glands have more material to work with and produce more sebum as a result. The outcome is persistently oily skin and a significantly higher likelihood of breakouts.
Put simply: Vitamin B5 is one of the body's primary tools for keeping oil production in check at a cellular level. No topical product can replicate this function because it happens deep within the metabolism, not at the surface of the skin.
The Link Between B5 Deficiency and Acne
The connection between Vitamin B5 deficiency and acne was first proposed in a landmark paper by Dr. Lit-Hung Leung, published in the Journal of Orthomolecular Medicine in 1995. Dr. Leung observed that acne-prone individuals appeared to have a relative deficiency in pantothenic acid, and that supplementing with high doses of B5 led to significant reductions in both oiliness and breakouts.
In his clinical observations, Leung noted that patients who supplemented with Vitamin B5 experienced a visible reduction in pore size, decreased skin oiliness, and fewer new blemishes forming, typically within four to eight weeks of consistent supplementation.
While the research body on B5 and acne has grown gradually since then, the core mechanism, that adequate pantothenic acid supports proper CoA-mediated fat metabolism and keeps sebum production regulated, is well supported in nutritional and dermatological literature.
It's also worth noting that acne is the most common skin condition in the United States, affecting tens of millions of people. The fact that it's so widespread, and persists so stubbornly despite widespread access to topical treatments, is consistent with the idea that internal nutritional factors are playing a significant and underaddressed role.
Vitamin B5 vs. Topical Acne Treatments
Most popular topical acne treatments target the downstream effects of excess sebum rather than the production itself. Salicylic acid breaks down the clog after sebum and dead skin cells have already accumulated. Benzoyl peroxide kills the bacteria that feed on excess sebum. Retinoids speed up cell turnover to reduce the chance of pores blocking.
All of these are addressing what happens after too much oil has been produced. None of them tell the sebaceous gland to slow down.
Vitamin B5 works upstream. By supporting proper fat metabolism through Coenzyme A, it helps regulate how much sebum is produced in the first place. The result is that there's simply less excess oil to clog pores, less material for bacteria to feed on, and fewer breakouts forming before they start.
This is why Vitamin B5 is considered one of the most powerful acne-fighting ingredients when it comes to internal supplementation. It doesn't just manage acne. It targets one of the primary biological mechanisms behind its formation.
How to Get Enough Vitamin B5 for Your Skin
Through food. Vitamin B5 is found in many common foods. Good dietary sources include chicken breast, beef liver, salmon, avocado, sunflower seeds, sweet potato, mushrooms, eggs, and lentils. A balanced, varied diet will provide a baseline level of pantothenic acid, but for people with acne-prone skin who need to meaningfully affect sebum regulation, dietary intake alone is often not enough to reach therapeutic levels.
Through supplementation. This is where most people with persistent oily skin and acne see real results. A supplement formulated specifically for acne-prone skin and built around meaningful doses of Vitamin B5 can help close the gap between what your diet provides and what your sebaceous glands actually need to regulate properly.
Blemish Blend by Gold and Grove was built around this principle. Vitamin B5 is listed as the single most powerful acne-fighting ingredient in the formula. It works directly on the cells of the skin to help them perform at an optimal level and actively reduces the amount of oil produced by the sebaceous glands. The formula pairs B5 with organic turmeric, organic ginger, Oregon Grape Root, and Grapefruit Seed Extract for a comprehensive inside-out approach to clearing skin. It contains no fillers, artificial colors, GMOs, dairy, gluten, or caffeine, and is made in the USA in an FDA-regulated, GMP-compliant facility.
The majority of customers begin seeing results within 4 to 8 weeks, with the most significant improvements typically appearing around the 3-month mark.
What to look for in a B5 supplement. Not all supplements are created equal. When evaluating a Vitamin B5 product for skin health, look for formulations that are specifically designed for acne-prone skin rather than general wellness, use clean ingredients without unnecessary fillers or additives, combine B5 with complementary anti-inflammatory and detoxifying ingredients, and are manufactured under GMP-compliant standards.
If you've been battling persistently oily skin and breakouts with topical products and not seeing lasting results, Vitamin B5 is worth understanding. It sits at the center of your skin's oil regulation system, and when your body doesn't have enough of it, the sebaceous glands simply produce more oil than your skin can handle.
Supplementing with Vitamin B5 at levels meaningful for skin health can help regulate sebum production from within, reduce the frequency and severity of breakouts, and give your topical routine a much better foundation to work from.
Clear skin starts beneath the surface. And Vitamin B5 is one of the most direct ways to support it there.
Learn more about how Blemish Blend by Gold and Grove uses Vitamin B5 as its hero ingredient alongside a full blend of skin-clearing vitamins and botanicals.