Micellar Water and Cleansing Oil OEM: Makeup Removal Formulation Guide

A makeup remover is the first product a consumer uses in the evening and, when it stings, the fastest product to be returned. It is also one of the few cosmetics applied directly to the eyelid margin and the lash line, where the skin is a few cell layers thick and the tear film is an arm's length away.

That combination makes micellar water and cleansing oil deceptively demanding projects. The formula is short, cheap and apparently simple, yet it concentrates every risk a water-based cosmetic can carry: surfactant irritation, microbial contamination, packaging that fails to deliver the right dose, and claims that must be defensible under European advertising rules.

This guide covers both formats for private label and custom development buyers, including how the emulsifier system is chosen, what eye-area testing is normally requested, and how to write a brief that produces a sample worth approving.

Why makeup removers are the least forgiving products to manufacture

Three factors make this category harder than it looks. First, the ingredient list is short, so there is nowhere to hide a marginal raw material: in a micellar water with six ingredients, one off-spec surfactant changes the whole sensorial result. Second, the product contacts mucous membranes, which raises the bar on both microbiology and irritation. Third, performance is judged in a single use, so a formula that removes 90% of a long-wear foundation still reads to the consumer as a product that does not work.

Micellar water and cleansing oil: which format does what?

The four common formats are not interchangeable, and a brand that plans two of them needs two separate development tracks even when the packaging looks similar.

A practical sequencing note: brands often start with micellar water because the unit cost is low, then add a cleansing oil a year later to satisfy the same customers who found the micellar water too weak for waterproof makeup. Designing the packaging family at the outset makes that second launch much cheaper.

How is micellar water formulated?

A micellar water is a dilute solution of non-ionic surfactants held above their critical micelle concentration, so that the surfactant assembles into micelles that solubilise oily soil rather than dispersing it across the skin. The total surfactant load is normally kept low, in the region of a few percent, because anything higher stops feeling like water and starts feeling like soap.

Common choices are poloxamers, PEG-based glyceryl esters, polysorbates and alkyl polyglucosides. Selection is driven by three practical tests rather than by theory. Clarity: the finished liquid must be transparent at room temperature and must not cloud in a cold warehouse, which means checking the cloud point of the chosen surfactant blend. Low irritation: shorter-chain and ethoxylated surfactants generally sting less, and the total active matter matters more than the identity of any single surfactant. Residual feel: some surfactants leave a hydrophobic film that consumers describe as sticky, which is normally fixed by rebalancing the blend rather than by adding a second humectant.

Humectants such as glycerin, propanediol and panthenol are added for comfort rather than cleaning performance, and they also reduce the drying feel that pure surfactant solutions produce. The pH is normally set near skin pH, and there is rarely a reason to go outside a mildly acidic window for this format.

How do you build a cleansing oil that rinses clean?

An emulsifying cleansing oil has three parts. The oil phase does the work: caprylic and capric triglycerides, sunflower or other seed oils, squalane and jojoba are all common, chosen for spreadability, dissolving power and whether the brand needs a plant-derived or a mineral oil story. The emulsifier converts the oil into a milk on contact with water so it can be rinsed away, and its level and type decide whether the product leaves a film. The minor phase carries fragrance, antioxidants and any oil-soluble active.

The most common failure is incomplete emulsification: the consumer rinses, the oil does not fully turn milky, and a residue stays on the skin and around the eyes, which then causes blurring for contact lens wearers. This is almost always a formulation, not a use, problem, and it is detected with a simple in-house test that dilutes a fixed weight of product in warm water and observes the emulsion quality and the residue on a glass slide.

Emulsifier-free cleansing oils exist and are marketed on the strength of the claim, but they rely on the oil blend itself being partly water-dispersible through the addition of esters or ethers that act as dispersants. The claim is defensible if the formula genuinely contains no emulsifier as defined by the brand's own claim policy; the important thing is to agree that definition in writing before the artwork is designed.

Which format should a new brand launch first?

The decision is driven by the customer, the channel and the makeup habits of the target market rather than by manufacturing cost. Micellar water is the safer first launch for a mass or pharmacy channel, because the format is well understood, the packaging is cheap, and the product can claim to be gentle. A cleansing oil or balm is the better first launch for a premium or online-led brand, because it supports a higher price, is visually distinctive, and performs against the long-wear and waterproof products that heavy makeup users actually wear.

If the target market is humid and hot, the sensorial expectation shifts toward lighter, faster-rinsing textures. If it is cold and dry, an oil or balm is easier to position as comfortable. These are the questions we ask before quoting, because they change the recommended system.

Eye-area safety: what testing does a makeup remover need?

Because the product contacts the eye area, the safety assessment for this category carries more weight than for a body lotion, and a brand that intends to claim suitable for sensitive eyes or ophthalmologist tested needs evidence.

In practice, three test types come up. In-vitro ocular irritation testing, such as the reconstructed human cornea-like epithelium method, provides an animal-free indicator of eye irritation potential and is widely used for this category. Human patch testing, usually a repeat insult patch test on a panel of volunteers, supports claims about skin tolerance. And for products marketed specifically against waterproof mascara, a consumer use test with a defined panel and a defined removal protocol produces the performance figure that any claim has to rest on.

Two cautions for brand owners. Emphasising the absence of an ingredient is not the same as having a test result, and a marketing claim built on absence alone is fragile when questioned. Equally, a claim of tear-free or no-sting is a performance claim that needs support; we would normally advise a more precise, defensible wording that matches the data the brand actually holds.

Preservation and microbial risk in water-rich cleansers

Micellar water and biphase removers are water-dominant products stored in bathrooms, which is the harshest realistic environment for microbial stability in a normal range. Preservation has to be validated with a microbiological challenge test in the final packaging, and the test must be run on the finished bulk rather than on a prototype made in a beaker.

Two formulation details change the answer. Surfactant systems can interact with preservatives and reduce their availability, so a preservative system that passes in water can fail in a surfactant base. And glycols that are added as humectants or solubilisers also carry preservative-boosting activity, which sometimes allows a lower total preservative load but makes the challenge test result harder to predict without running it.

For cleansing oils and balms, water activity is low and microbial risk is much smaller, but the risk moves to oxidation and to water ingress: a jar of balm used with wet fingers can accumulate water droplets in the product, creating localised pockets where microbes can grow. A well-designed balm is usually formulated to absorb small amounts of water without phase separation.

Packaging choices that decide the consumer experience

Dose control is the most underrated packaging variable in this category. A micellar water with a wide flip-top opening dispenses far more liquid than a cotton pad can hold, which consumers read as a wasteful product. A bottle with a narrow dispenser insert or a flip-top with a controlled orifice gives the same formula a completely different perceived value at almost no extra cost.

For a biphase remover, the bottleneck is the shake-and-pour action: the two phases must separate cleanly and quickly after shaking so the consumer sees the intended effect, and the closure must seal reliably because the oil phase creeps into threads. For a cleansing oil, a pump that dispenses a full dose in one stroke matters more than the bottle material, and an airless pump is rarely needed because oxidation risk is low.

Sustainability requirements now frequently arrive in the same brief. Post-consumer recycled PET is available for most bottle formats, and mono-material pump assemblies are improving, though the recycle-ready option is usually not the cheapest. We confirm what the target market's recyclability guidance actually requires before recommending a pack, because a claim of recyclable packaging carries its own evidence burden.

Claims that get makeup removers into trouble

The common criteria for cosmetic claims in the EU require that claims be evidence-based, truthful and understandable. In this category, four claim families attract attention.

Numerical performance claims, such as removing a stated percentage of makeup, need a documented use test that matches the claimed protocol and product type. Detox or purifying language applied to a cleanser is difficult to substantiate and is better replaced with a description of what the product actually removes. Ingredient-absence claims should state the absence clearly without implying a health benefit or disparaging a permitted ingredient. And medical-sounding wording, especially anything implying treatment of a skin condition, pushes a cosmetic toward medicinal classification, which changes the entire regulatory pathway.

Our standard advice is to draft claims from the test reports that exist rather than to run tests to support claims already printed on a design. It is cheaper in that order.

What should your cleansing product brief contain?

To get a usable sample and a firm quotation in one cycle, include the format, whether the product must rinse clean, the makeup types it must remove, the intended claim set, the pH expectation if any, whether fragrance or essential oils are allowed, the packaging type and dose, the target markets, the first order quantity, and the target cost. If the product will be sold against waterproof makeup, say so explicitly, because that single requirement drives the emulsifier level and the eye-area test plan.

Frequently asked questions about micellar water and cleansing oil OEM

What is the minimum order quantity for a micellar water or cleansing oil?
Because these are liquids in stock bottles, MOQ is usually lower than for a moulded-pack product, but it still depends on the bottle and pump you choose. We confirm the figure per pack once the packaging decision is made.

Can you produce a fragrance-free micellar water for sensitive skin?
Yes, and for many markets that is the recommended starting point. Removing fragrance also removes a common sensitiser and simplifies the safety assessment, though the sensorial profile has to be rebuilt with humectants and a careful surfactant blend.

Can you match a micellar water that we already sell?
We can benchmark an existing product and build a formula to the same brief. We do not copy a third party formula, and we ask brands to confirm they hold the rights to any formula they want reproduced.

How long does development take?
A first sample is typically two to three weeks after the brief and packaging are frozen, with most projects needing two or three rounds. Eye-area testing and stability work run in parallel with artwork preparation.

Do you provide the test reports needed for regulatory filing?
Yes. Stability, pack compatibility, microbiological challenge and the eye-area irritation testing we arrange are all documented, and the reports form part of the technical dossier a brand needs for notification or filing in its target markets.

Next step: send us your cleansing brief

Tell us whether you are building a micellar water, a cleansing oil, a balm or a biphase remover, plus your target market and volume, and we will propose a formulation route, a surfactant or emulsifier system, packaging options and a costed quote. Write to capsulebiotech@163.com, message the right team on WhatsApp: Capsule Series (capsules only) +86 158-7655-5319, Cosmetics Series (serum, hair care, body care, fragrance) +86 158-7655-5319, or use the inquiry form for a reply within one working day.

You may also want to review these related manufacturing programmes: plant-based purifying cleansing oil, deep pore cleansing oil softgel capsules, and fragrance facial cleanser, shampoo and body wash.