Why Your Cleansing Balm Should Come in a Tube

Most people choose a cleansing balm based on formula, ingredients, and price. The packaging is an afterthought, if it is considered at all. But packaging format is not simply a cosmetic decision. It has a measurable impact on product hygiene and ultimately, what is going onto your skin every single time you cleanse.

The pot or jar is the most common format for cleansing balms on the market. It is also the most problematic from a hygiene standpoint. This blog is about that: the science of skincare packaging hygiene, why open-top formats create real problems for formula integrity and skin health, and why a tube-format oat cleansing balm is the cleaner, smarter choice.

The INKEY List Oat Cleansing Balm comes in a tube. That is a deliberate decision, not a default. If you want to understand the full story behind the reformulated formula itself, you can read that separately in The New Oat Cleansing Balm: What’s Changed and Why. What follows here is the packaging hygiene argument, made clearly and in full.

The Pot Problem: Contamination and Oxidation

Every time you open a pot of cleansing balm and reach inside, you introduce bacteria directly into the product. Not hypothetically — every single time, with every hand, regardless of how clean your skin feels.

The human skin carries a complex and populated microbiome. Common bacteria present on its surface include Staphylococcus epidermidis and Pseudomonas aeruginosa, both of which are typically harmless on intact skin but can cause irritation or infection when introduced into products applied directly to the face, particularly around the eyes, nose, and mouth. When fingers contact an open product, some of those bacteria transfer into the formula.

Research published in Scientific Reports on risk factors influencing contamination of customised cosmetics found that aerobic microbes were detected in 40.8% of cosmetic samples tested. The study identified that the transfer of cosmetics to or between containers, including by hand, was a significant risk factor for cross-contamination. Semisolid products — including creams and rinse-off balms — were among the most susceptible. A cleansing balm is precisely this kind of formulation: a rich, semisolid product accessed repeatedly by hand over weeks or months of daily use.

The spatula is often suggested as a workaround. In theory, a clean spatula eliminates finger contact. In practice, most people do not use one consistently. And if a spatula is not cleaned between uses, it simply becomes an alternative contamination vector. The problem is the open format itself, not just the fingers.

Contamination is not always visible. There are no reliable outward signs that a formula has been compromised. The product can look, smell, and feel exactly as it did on day one while bacteria have been introduced and sustained within it. The preservative system in a well-formulated product is designed to handle a degree of contamination, but not repeated, ongoing exposure over months of daily use.

Running parallel to this is a second, less visible problem: oxidation. Every time a pot lid is removed, air enters the container and oxygen begins to interact with certain ingredients in the formula. The ingredients most vulnerable to oxidation are precisely the kinds found in high-quality cleansing balms — plant-derived oils, antioxidants, and omega fatty acids. Oat Kernel Oil is rich in omega-3 and omega-6 fatty acids and ceramide precursors. Sea Buckthorn Oil carries potent antioxidant compounds. Both are valuable for skin health. Both are susceptible to oxidative degradation when repeatedly exposed to air.

“The formula you bought on day one is not the same formula you are using on day 45 if it has been stored in an open-top pot.”

As the product level drops, the air gap above it increases. More airspace means more oxygen available to interact with the formula. The problem scales with every use. The preservative system is simultaneously managing contamination and oxidative stress — a compounded strain it was never designed to sustain across the full lifespan of a product in an open pot.

The format creates the vulnerability. Once that is understood, the case for tube packaging becomes straightforward.

Why Tube Packaging Is the Cleaner, Smarter Choice

A tube is a sealed system. When product is dispensed, it exits through a narrow opening and the rest of the formula remains enclosed. There is no open surface. There is no air gap. There is no direct contact between fingers and the product reservoir. The architecture of the format eliminates the primary routes of both contamination and oxidation simultaneously.

The contamination case is direct. Because the user squeezes from the outside of the tube, fingers never touch the formula itself. The bacteria present on fingertips — which are always present, regardless of how recently hands were washed — never enter the product. As noted in Kyndarex’s independent analysis of packaging formats, tubes offer better hygiene than open-top formats as a core structural benefit.

The oxidation case is equally direct. Because the tube collapses as product is dispensed, there is minimal airspace inside at any point during its life. On day one, the tube is full and sealed. On day forty-five, the tube has collapsed inward to accommodate the reduced volume — the remaining product is still in contact with the tube walls rather than with an expanding air gap.

Here is what a tube format achieves that a pot cannot:

No finger contact with the product reservoir — eliminating the primary contamination route entirely.
No significant air gap above the product — dramatically reducing ongoing oxidative exposure throughout the product’s life.
Controlled dispensing — the user determines exactly how much product exits the tube, reducing waste and limiting unnecessary formula exposure.

The result is a product that performs more consistently across its entire lifespan, because the packaging has been designed to preserve the formula rather than expose it.

Why This Matters Most for Sensitive and Blemish-Prone Skin

These benefits apply to any cleansing balm user. But they matter most for the people whose skin is least equipped to absorb additional variables.

Sensitive skin is characterised by a compromised or reactive barrier. Cleansing is the first step of the routine — it sets the conditions for everything that follows. Introducing bacteria or a degraded formula at this stage, before any other product has been applied, can trigger reactivity before the routine has even properly begun. For sensitive skin, this is not a minor inconvenience. It can manifest as redness, tightness, stinging, or prolonged reactivity that affects the skin’s response for the rest of the day.

For blemish-prone skin, the argument is even more specific. Cleansing is partly intended to reduce surface bacteria and congestion. Using a cleansing balm for sensitive skin that has been repeatedly contaminated through open-pot contact directly undermines this objective. The goal of the step and the hygiene status of the product are working against each other.

The skin around the eyes — where a cleansing balm is often doing its most important work as a makeup remover balm — is the thinnest and most reactive skin on the face. It is the area least equipped to manage external irritants, and the area where a compromised formula poses the highest relative risk.

Tube packaging removes one avoidable variable from the equation. When skin is already sensitive, reactive, or managing ongoing blemishes, the goal is to reduce the number of potential triggers in the routine. A sealed, hygienic formula is not a luxury consideration. It is a baseline requirement.

The INKEY List Oat Cleansing Balm: Built for Hygienic Cleansing

The INKEY List Oat Cleansing Balm 150ml comes in a tube that is softer and thinner than the previous iteration, making it significantly easier to squeeze out every last drop — including when nearly empty. This was a deliberate design improvement, resolving a frustration that some users had with the earlier, firmer tube.

The key actives benefit directly from this protection. 5% Oat Kernel Oil, rich in ceramides and omega fatty acids, supports the skin barrier and provides nourishing, conditioning properties. Sea Buckthorn Oil brings antibacterial and antioxidant activity. A Natural Wax Blend provides the balm’s texture and skin-conditioning properties.

The oat cleansing balm removes 100% of waterproof makeup and SPF in 30 seconds, based on a consumer trial. It is clinically proven to hydrate for up to 12 hours, suitable for all skin types including sensitive and blemish-prone skin, and appropriate for use during pregnancy and breastfeeding. At £15 for 150ml — approximately 100 uses — it is accessible as well as effective.

How to use cleansing balm correctly:

Squeeze a raspberry-sized amount directly onto dry fingertips.
Massage gently across dry skin for 30 to 60 seconds, working the balm over the face to dissolve makeup, SPF, and impurities.
Add a small amount of warm water to emulsify the formula into a milky texture.
Rinse thoroughly and follow with your second cleanser if double cleansing.
Alternatively, apply to dry skin and leave on for up to 10 minutes as a nourishing face mask before rinsing.

The Mini Oat Cleansing Balm 50ml is available for those who want to try before committing to the full size, or who prefer a travel-friendly option. For a complete cleansing routine, the Double Cleanse Duos pair the Oat Cleansing Balm with a complementary second cleanser.

Better for the Planet Too

The move to a softer, thinner tube also delivers a measurable environmental benefit. The new packaging has reduced INKEY’s plastic use by 16 tonnes per year. That is a genuine material reduction — not a marginal saving dressed up as sustainability.

Crucially, this demonstrates that the choice better for skin hygiene and formula integrity is also the choice that uses less material. These goals are not in tension here. The tube delivers on all of them at once.

There is also a practical sustainability benefit for the user. Because the tube collapses as the formula is dispensed, virtually all of the product can be used. Pots commonly leave a significant amount stuck to the sides and base, inaccessible and ultimately wasted. The tube format is more efficient from manufacture to the final squeeze.

16 tonnes less plastic per year. Same great formula. Cleaner for your skin. Cleaner for the planet.

INKEY is B Corp certified, and all packaging is 100% recyclable. For more on recycling your INKEY packaging, see How to Recycle the INKEY Way. For a full view of INKEY’s environmental and social commitments, the INKEY 2024 Impact Report has the detail.

The Takeaway

The format of a cleansing balm’s packaging is not a cosmetic choice. It directly shapes three things that matter: the hygiene of the product throughout its life, the efficacy of the formula, and the environmental impact of its production.

Pot packaging creates two compounding problems: repeated finger contact introduces bacteria from day one, and repeated air exposure degrades sensitive ingredients over time. Tube packaging resolves both structurally — no finger contact, no significant airspace, and controlled dispensing.

For sensitive and blemish-prone skin, where every variable in the routine matters, this is not a marginal benefit. It is meaningful. The INKEY List Oat Cleansing Balm is designed to cleanse effectively, protect the skin barrier, and stay hygienic from the first squeeze to the last. The tube is the reason the last point is true.

Shop the Oat Cleansing Balm

Looking for more? Find your full cleansing routine or explore our Double Cleanse Duos. Curious about what changed in the reformulated formula? Read The New Oat Cleansing Balm: What’s Changed and Why.