By Thom Watson, founder of Phatstix, a 30g natural lip balm made in England. After nearly two decades in beauty and a lifetime of chapped lips, I made the balm I couldn't find anywhere else.
Vaseline is a fine short-term fix. It seals the surface of your lips and stops moisture escaping, which is genuinely useful. But it doesn't add anything. A good lip balm conditions and nourishes as well as protecting, which means it actually improves the state of your lips over time, not just while it's on. Both have a place; they're just doing different jobs.
What is Vaseline, exactly?
Vaseline (the branded name for white petrolatum, or petroleum jelly) is a semi-solid mixture of mineral oils and waxes refined from crude oil. It has been used in medicine and cosmetics since the 1870s, so it has serious longevity.
Cosmetic-grade Vaseline is heavily purified. The version in the blue pot has been used safely by billions of people for well over a century. It is not going to hurt your lips. Anyone claiming it is secretly toxic or harmful is not engaging with the evidence.
What it is, though, is inert. Petroleum jelly doesn't absorb into skin. It sits on top of it. That is the whole mechanism, and it's actually why it works.
What does Vaseline actually do to your lips?
Vaseline is what skincare scientists call an occlusive agent: it forms a physical barrier over the skin's surface that dramatically reduces transepidermal water loss (TEWL), the passive evaporation of moisture from skin into the air.
If your lips are already reasonably well-conditioned and you just need to stop them drying out in cold air or wind, that barrier is exactly what you want. Studies into occlusive agents consistently find them effective at reducing moisture loss, and petrolatum is widely regarded in the dermatology literature as one of the most effective occlusives available.
The limitation: sealing in moisture only works if there is enough moisture there to seal in. If your lips are already dry, cracked, or flaky, Vaseline traps whatever little moisture remains, but it can't restore what's already gone.
What does a lip balm do that Vaseline doesn't?
A properly formulated lip balm does two things Vaseline can't:
1. It conditions. Ingredients like shea butter, cocoa butter, jojoba oil and sweet almond oil are emollients, they work differently from occlusives. Emollients fill the gaps between skin cells, soften the texture of the skin, and restore the skin's own lipid barrier from the outside in. They don't just lock things in; they actively improve the condition of the skin they're on.
2. It nourishes. Plant butters and oils carry fatty acids, antioxidants, and vitamins that skin actually uses. Beeswax, for instance, provides both occlusion and a degree of conditioning, it's been part of skin preparations since ancient Egypt for good reason.
The best lip balms combine both mechanisms: occlusive protection and emollient conditioning in the same product. Vaseline only does the first.
Is petroleum jelly safe to use on lips?
Yes. The safety record of cosmetic-grade petrolatum is well-established. The US Cosmetic Ingredient Review has assessed it as safe for cosmetic use at current concentrations. The EU restricts certain grades of petrolatum in cosmetics (requiring it to be fully refined), and Vaseline's cosmetic-grade products meet those standards.
The concern about petrolatum occasionally raised online usually relates to:
- Carcinogenic risk from unrefined petrolatum used industrially (not in cosmetics)
- The "suffocating" myth, the idea it blocks pores entirely; it doesn't, it's semi-permeable
Neither applies to Vaseline as sold. If you have a jar and want to use it on dry lips, it will do the job of an occlusive. It's not a scandal, it's just limited.
Beeswax vs petroleum jelly: what's the practical difference?
This comparison comes up a lot, and it's a more interesting question than Vaseline vs balm, because beeswax is the primary structural ingredient in most natural lip balms.
| Beeswax | Petroleum jelly | |
|---|---|---|
| Source | Natural (honeybee secretion) | Mineral oil refinery byproduct |
| Main function | Occlusive + emollient | Occlusive only |
| Texture | Firm, slightly waxy, not greasy | Heavy, greasy |
| Absorbs? | Partially | No |
| Additional properties | Soothing, supports the skin barrier | None beyond physical barrier |
| Vegan? | No | Yes |
Beeswax does more. It provides a protective barrier similar to petrolatum's but also contains natural compounds (esters and fatty acids) that have documented skin-soothing properties. A 2023 review of beeswax in skincare (Nong et al. 2023, Journal of Cosmetic Dermatology) found it supports the skin barrier and has soothing properties.
That's why beeswax forms the backbone of our 30g balm, not because it's trendy but because it does the job better. It is the single largest ingredient by weight.
When is Vaseline actually the right choice?
Honestly? In a few situations:
- Emergency overnight lip mask: apply a thick layer before bed when lips are very dry; the occlusion helps retain moisture while you sleep. (Apply a conditioning balm first for best results.)
- Budget chapped-lip first aid: if you have no lip balm to hand, Vaseline is better than nothing.
- Under a dry, medicated lip treatment: an occlusive layer locks in active ingredients. (Ask your pharmacist or GP about any specific skin condition.)
- Protecting lips from extreme cold or wind before it damages them: occlusion before exposure, not after.
It is not the right choice as your everyday lip care if you actually want to improve the condition of your lips, rather than just protect them.
So why do some lip balms seem to make lips drier over time?
Good question, and it's not the petroleum jelly. The culprits are typically:
Fragrance and flavour. Synthetic fragrance is one of the most common contact allergens. Flavoured balms encourage licking (you can smell or taste them), and saliva digests the delicate skin surface of lips, leaving them drier than before. Our balm has no fragrance and no flavour, deliberately.
Menthol, camphor, and cooling agents. These feel refreshing, but they are mild irritants that temporarily inflame the skin. Once the irritation fades, you reach for the balm again. It's not addiction in any clinical sense, but it is a loop.
Insufficient occlusives. Very lightweight balms that are mostly wax and fragrance don't have enough emollient load to actually condition. They just sit there.
If you're curious about what your lip balm actually contains and which ingredients to watch out for, our guide to what's actually in lip balm breaks it all down.
What should you look for in a lip balm instead?
The formula that works:
- A protective wax base: beeswax is the gold standard; carnauba wax works for vegans.
- Emollient oils: jojoba, sweet almond, sunflower. These fill in the skin, not just sit on top of it.
- Rich butters: shea, cocoa, mango. Real emollients with fatty-acid depth.
- No added fragrance or flavour, unless you enjoy the licking loop.
- No menthol or camphor, unless you specifically like that sensation and accept the tradeoff.
A 30g balm that's 100% natural, fragrance-free, and built from beeswax, five oils, and three butters. That's what Phatstix is. Nothing more, nothing less.
The honest comparison table
| Vaseline (petroleum jelly) | A properly formulated lip balm | |
|---|---|---|
| Occlusive (stops moisture escaping) | Yes, very effective | Yes, beeswax especially |
| Conditioning (improves skin over time) | No | Yes, emollient butters and oils |
| Absorbs into skin | No | Partially (the oils component) |
| Fragrance-free | Yes | Depends, read the label |
| Natural origin | No | Depends, read the label |
| Vegan | Yes | Depends, beeswax-based balms aren't |
| Value for money | High (very cheap per gram) | Varies, The Balm is ~£0.80/g |
| Good for daily use | As a protective layer | Yes, as all-round lip care |
Frequently asked questions
Is Vaseline good for chapped lips?
It helps. Vaseline reduces moisture loss from the surface, which gives dry lips a chance to recover. It works best as a protective layer, ideally over a conditioning balm that has already put something back in. On its own it can't condition skin that's already dry, because it has no emollient ingredients.
Is petroleum jelly bad for you?
Cosmetic-grade petrolatum (the type in Vaseline) is assessed as safe and has a very long safety record. The risks associated with petrolatum relate to unrefined industrial grades, not the cosmetic product. If you have concerns about a specific skin condition, ask your GP or pharmacist.
What's the difference between an occlusive and an emollient?
An occlusive (like petroleum jelly or beeswax) forms a physical barrier that reduces water evaporation from skin. An emollient (like shea butter or jojoba oil) softens and conditions skin by filling gaps between cells and restoring the lipid barrier. The best balms combine both.
Does Vaseline cause lip balm addiction?
No, petroleum jelly is not irritating or inflammatory, so it doesn't trigger the use-again loop that menthol and flavoured balms can. The "addiction" concern is more relevant to cooling-agent or fragrance-heavy products.
Is beeswax better than Vaseline for lips?
Beeswax does everything petroleum jelly does as an occlusive, and a 2023 review also found it supports the skin barrier and has soothing properties. The main reason some people prefer Vaseline is that it's cheap and vegan. If neither of those is your priority, beeswax-based balms are the stronger formula.
What lip balm should I use instead of Vaseline?
Look for a balm with a proper emollient base: beeswax or a plant wax, quality oils (jojoba, sweet almond, sunflower), and butters (shea, cocoa, mango). No fragrance, no flavour, no menthol. That's the formula that actually improves the condition of your lips rather than just sealing them.
The bottom line
Vaseline is not a bad product. It is an honest occlusive that does exactly what it says. But it can't condition lips that are already dry, because it doesn't contain anything that nourishes or restores skin. It seals; it doesn't feed.
A well-formulated lip balm does both. The gap between the two is the gap between protecting and actually improving.
If you want something that does the full job, 100% natural, fragrance-free, and big enough to last a year, The Balm is 30g of beeswax, oils, and butters, made in England. No petroleum. No fragrance. No faff.
Or, if you're trying to understand the broader picture of what goes into lip care and why it matters, start with our full guide to lip balm ingredients, which covers what to look for and what to leave on the shelf. And if you're wondering whether a bigger balm might actually be worth the switch, our honest look at giant lip balms covers the maths.
About the author
Thom Watson is the founder of Phatstix and has spent nearly two decades in beauty, including founding MANFACE, a long-running UK men's skincare and grooming blog. He started making lip balms in his kitchen after years of failing to find a natural formula that actually worked, and a personal health scare that made him take the project seriously. He is based in York.