TABLE CONTENTS:

• Eye Cosmetics Safety: Preservative Limits in CPSR Under Annex V of EU Cosmetics Regulation
• Why Eye Cosmetics Are Riskier Than Other Products
• What Is EU Cosmetics Regulation 1223/2009, and Where Do Preservatives Fit In?
• What Is Annex V, the Only List That Matters
• Key Preservative Limits for Eye Cosmetics Under Annex V
• Breaking Down Each Preservative: What the Limits Actually Mean
• Parabens, Three Categories, Three Different Rules
• Phenoxyethanol, Why It's in Almost Everything
• Benzyl Alcohol, Watch the Labelling Closely
• Chlorphenesin, Useful in Combinations Only
• Isothiazolinones: These Don't Belong in Eye Products
• Mandatory Labelling, What Annex V Requires on the Pack
• Combined Concentrations, Raw Material Carry-Over and Your CPSR
• The Combined Limit Problem
• The Raw Material Carry-Over Problem
• What the CPSR Must Address for Eye Cosmetics
• Challenge Testing, Proof Your Preservation System Actually Works
• pH and Water Activity, the Two Variables That Control Everything
• Natural Preservatives and Self-Preserving Claims: What the Law Actually Says
• What's Changing in Annex V in 2026
• Formaldehyde Releasers Under Fire
• CMR Reclassifications Hit Annex V
• Transitional Periods Still Matter
• Most Common Compliance Mistakes

1. Using Outdated Annex V
2. Rinse-Off to Leave-On Copy
3. Missing Raw Material Carry-Over
4. Skipping Challenge Testing
5. Ignoring CPSR After Formula Changes

• FAQs
• What is Annex V of the EU Cosmetics Regulation?
• How much preservative is safe to use in cosmetics?
• What is Annex II of the EU Cosmetics Regulation?
• What is Article 19 of the EU Cosmetics Regulation?

Eye Cosmetics Safety: Preservative Limits in CPSR Under Annex V of EU Cosmetics Regulation

Open your mascara. Look at the wand. Now think that wand goes in and out every single day. It touches your lashes, your skin, sometimes your eyelid. Then it goes right back into the tube.

Without a proper preservation system, that tube becomes a bacterial farm. Fast. And eye infections from contaminated eye cosmetics? They're more common than most people realise.

This is exactly why preservative limits in eye cosmetics are one of the most important parts of a cosmetic product safety report (CPSR). Get this wrong, and you're not just failing compliance. You're putting people at real risk.

This guide covers everything, Annex V of the EU Cosmetics Regulation, what's permitted, what's banned, and what your CPSR assessment must prove.

Why Eye Cosmetics Are Riskier Than Other Products

Eye cosmetics sit millimetres from your cornea. That's not like moisturiser on your cheek. The eye area absorbs substances faster. Reactions happen quicker. And contaminated mascara safety failures can cause real eye infections, not just irritation.

Eyelash tint safety, waterline liners, and leave-on eyeshadow all of them stay on skin for hours. That changes everything about how preservation is assessed.

What Is EU Cosmetics Regulation 1223/2009, and Where Do Preservatives Fit In?

EU Regulation 1223/2009 is the law covering every cosmetic sold in the EU. It covers safety, labelling, responsible persons, and restricted substances.

Preservatives specifically fall across three key areas.

Annex II is the prohibited list. Substances here cannot appear in any EU cosmetic. Several parabens ended up here after safety reviews by the Scientific Committee on Consumer Safety (SCCS).

Annex V is the permitted preservatives list. This is the one that controls your formulation. If a preservative isn't here, it can't be in your product.

Article 19 covers labelling. Some Annex V preservatives list EU cosmetics entries that carry mandatory on-pack disclosure requirements. Miss one and your product is non-compliant, even with a perfect formula.

What Is Annex V, the Only List That Matters

Annex V of the EU Cosmetics Regulation is a legal table. Each entry tells you four things. The maximum concentration allowed in the finished product. Whether it applies to rinse-off, leave-on, or both. Any specific conditions attached to that ingredient? And any mandatory warnings required on the label.

Here's what most brands get wrong. They check Annex V once, when they first formulate. Then never again. But the Annex V preservatives list EU cosmetics gets updated regularly. The SCCS publishes new safety opinions. Limits drop. New restrictions appear. Substances move to the banned list.

Working from a 2020 version of Annex V in 2025 is a real problem. Your cosmetic safety assessment could look fine internally, but fail market surveillance because a limit has changed.

The CosIng database is the only place to verify the current status in real time. Not a supplier datasheet. Not a competitor's formula. CosIng.

Key Preservative Limits for Eye Cosmetics Under Annex V

Before breaking down each one, here's the full picture. These are the current preservative limits in the EU cosmetics rules for eye products.

Numbers alone don't explain why these limits exist. Let's go through each one.

Breaking Down Each Preservative: What the Limits Actually Mean

Parabens, Three Categories, Three Different Rules

Don't treat parabens as one group. The regulation splits them clearly. And your CPSR report needs to reflect that split.

Methyl and ethylparaben are still permitted at 0.4% each or 0.8% combined. That applies to leave-on eye cosmetics, too. The SCCS has consistently found these safe at current levels.

Propyl and butylparaben are trickier. The SCCS flagged potential endocrine-disrupting effects. Limits dropped hard to 0.14% individually or combined. They're technically allowed. But most safety assessors push back when they see these in eye products. The risk-benefit justification is uncomfortable to write in a CPSR cosmetics review.

The banned parabens, isopropyl, isobutyl, phenyl, benzyl, and pentyl, are in Annex II. Zero tolerance. No concentration makes them acceptable.

Phenoxyethanol, Why It's in Almost Everything

Permitted at 1.0% across all product types. Effective against bacteria and fungi. Stable across a wide pH range. Compatible with most formula components. That's why it dominates safe preservatives for eye products in EU formulations.

One flag worth noting in your cosmetic product safety assessment, the SCCS raised concerns in 2016 about facial use on children under three. For standard adult eye products, this typically isn't an issue. Its common in eye cosmetics like mascaras.

Benzyl Alcohol, Watch the Labelling Closely

Permitted at 1.0%. Works well as a preservative. But benzyl alcohol is also a fragrance allergen. Even when used purely for preservation, it needs on-label allergen disclosure above 0.001% in leave-on products. Many brands miss this completely. It's a labelling non-compliance, even when the formula is correct.

Chlorphenesin, Useful in Combinations Only

Permitted at 0.3% in finished products. It won't carry a full preservation system alone. But paired with phenoxyethanol, it creates a clean combination. One that often passes ISO 11930 challenge testing, without touching parabens at all.

Isothiazolinones: These Don't Belong in Eye Products

MI and MCI/MI are restricted to 15 ppm in rinse-off products only. They are completely banned from leave-on products like Mascara, Eyeliner, Eyeshadow.

Mascara safety reviews flag this immediately. The sensitisation risk near mucous membranes is well documented. A leave-on eye product with MI in the formula is a compliance failure, no matter how low the concentration.

Mandatory Labelling, What Annex V Requires on the Pack

Some Annex V entries carry label obligations beyond the standard INCI listing. These are legal requirements under Article 19.

A product missing a mandatory disclosure is non-compliant. Even if every concentration is within limits. Even if the formula passed challenge testing. Formulation compliance and labelling compliance are assessed separately in a cosmetic safety report.

Combined Concentrations, Raw Material Carry-Over and Your CPSR

The Combined Limit Problem

When you use multiple parabens, the limits apply to the combined total, not each ingredient separately. So 0.4% methylparaben plus 0.4% ethylparaben hits the 0.8% ceiling exactly. Add even a trace of propylparaben on top. Now you've also breached the 0.14% sub-group limit simultaneously.

Your cosmetic product safety assessment must calculate total combined exposure. Across every preservative in the formula. Not each one in isolation.

The Raw Material Carry-Over Problem

Many raw materials arrive pre-preserved. Emulsifiers, botanical extracts, and thickeners often contain small amounts of phenoxyethanol or parabens from the supplier. That carry-over counts toward your finished product total.

So you might have phenoxyethanol at 0.7% as your intentional preservative. Your emulsifier brings in 0.15%. Your botanical extract adds another 0.1%. Suddenly, you're at 0.95%. Still within the 1.0% limit, but dangerously close. One more preserved raw material and you're over.

A CPSR assessment that doesn't account for carry-over is incomplete. Check every raw material specification sheet. Ask suppliers directly if they don't list preservative content.

What the CPSR Must Address for Eye Cosmetics

The cosmetic product safety report has two parts. Part A covers the safety profile, ingredients, concentrations, toxicological data, and microbiological quality. Part B is the safety assessor's professional conclusion.

For eye cosmetics specifically, the CPSR cosmetics review must address three things around preservation. First, microbiological safety, including proof of preservation through challenge testing. Second, the exposure route, because preservatives near mucous membranes need specific low-sensitisation justification. A preservative acceptable in a body lotion needs more careful justification in an eyeliner. Third, total concentration, accounting for every preservative source across the full formula, including carry-over.

A CPSR report for mascara that only lists the intentional preservative isn't thorough enough.

Challenge Testing, Proof Your Preservation System Actually Works

Declaring a preservative in your formula doesn't proof the product is safe. The cosmetic safety assessment requires actual evidence. That evidence comes from challenge testing.

ISO 11930 is the standard. It deliberately introduces bacteria, yeast and mould into your finished product. Then measures how effectively the preservation system reduces microbial count over time. For leave-on eye cosmetics, the pass criteria follow Category 2 requirements.

Eye products have genuinely unusual preservation challenges. Mascaras are often anhydrous or very low-water. A preservative dissolved in the water phase of a lotion behaves completely differently in a wax-heavy mascara base. Waterproof eyeliners have high film-former content. That can physically isolate bacteria from the preservative.

Packaging matters too. A mascara wand re-entering the tube after every use creates a daily contamination event. That's fundamentally different from a sealed pump format. The CPSR requirements for mascara and eyeliner should address packaging explicitly, not just test the formula in isolation.

No shortcut exists here. A passed challenge test in a previous formula doesn't carry over to a modified one. Change anything significant, test again.

pH and Water Activity, the Two Variables That Control Everything

Two formulation factors that directly control whether your preservation system works, and rarely appear in basic guides.

pH first. Most preservatives work in their undissociated acid form. At higher pH, more of the molecule is ionised. Ionised molecules don't cross microbial cell membranes well. Phenoxyethanol at 1.0% in a pH 7.5 formula is measurably less effective than at 1.0% in a pH 5.5 formula. Same concentration. Different protection levels. Your cosmetic safety report needs to account for this.

Water activity (Aw) second. Microorganisms need available water to grow. Low Aw naturally inhibits most bacterial and mould growth. Anhydrous mascaras have very low Aw inherently. Some formulators argue they need less preservatives as a result. That argument can be valid, but only if Aw stays low throughout real use.

Here's the problem. The mascara wand picks up moisture from lashes and lids every single day. Over time, the tube's effective Aw creeps up. The preservation challenge increases as the product ages in use. Your challenge test should reflect this, not just the freshly manufactured formula.

Natural Preservatives and Self-Preserving Claims: What the Law Actually Says

"Natural origin" does not create an exemption from Annex V. The regulation is built around function, not origin. If a substance inhibits microbial growth in your formula, it's a preservative under EU law. Full stop.

Here's a quick breakdown of common natural approaches and how they hold up under cosmetic preservatives regulations and EU requirements.

Self-preserving formulations are a legitimate route. But they still need scientific justification and a passed ISO 11930 in your CPSR assessment. "We used high glycerin" is not a self-preservation argument by itself.

Honestly, natural preservation systems fail ISO 11930 more often than conventional ones. That's the pattern that shows up consistently in challenge test data. If you're going this route, test early. Before you finalise the formula, not after.

What's Changing in Annex V in 2026

Regulation (EU) 2026/78 is live. If you haven't reviewed your eye product formulas against it, now is the time.

Formaldehyde Releasers Under Fire

The most significant update involves formaldehyde-releasing preservatives. Ingredients like DMDM hydantoin and imidazolidinyl urea release formaldehyde slowly over the product's shelf life. Formaldehyde is a Category 1A carcinogen under CLP classification. The Annex V preamble is being updated specifically to address these releases. The direction of travel is clearly toward tighter restrictions.

CMR Reclassifications Hit Annex V

Beyond that, CMR reclassifications under CLP continue feeding into Annex II. When a cosmetic ingredient is reclassified as a carcinogen, mutagen or reproductive toxicant, it typically moves to the prohibited list. If it also had an Annex V preservation function, you're suddenly non-compliant. Even if your CPSR cosmetics report was approved last year.

Transitional Periods Still Matter

Products manufactured before the compliance deadline under old formulations may continue selling until stock clears. But manufacturing after that date must comply. Check the specific dates in 2026/78. Update your cosmetic product safety assessment before your next production run, not after.

Most Common Compliance Mistakes

These come up repeatedly in CPSR assessment reviews. Not edge cases, genuinely common errors.

1. Using Outdated Annex V
   Limits change. A concentration compliant in 2021 may have been reduced since. If your cosmetic safety report was drafted years ago, check it against the current Annex V.

2. Rinse-Off to Leave-On Copy
   What's permitted at 15 ppm in a shampoo is banned entirely in a mascara. Product type determines which preservatives are legal. No grey area.

3. Missing Raw Material Carry-Over
   Multiple raw materials, each preserved at low levels, can collectively push the finished product over the limit. Check every specification sheet.

4. Skipping Challenge Testing
   No formula is guaranteed. The preservation system that worked in your last product doesn't automatically work in this one, especially with the varied matrix and packaging conditions of eye cosmetics.

5. Ignoring CPSR After Formula Changes
   Change the preservative, concentration, packaging, or a key raw material, and the cosmetic product safety report must reflect that. An outdated CPSR for a modified product is a compliance gap.

FAQs

What is Annex V of the EU Cosmetics Regulation?

Annex V is the legally permitted preservatives list under EU Regulation 1223/2009. Any preservative in an EU cosmetic must appear here at a compliant concentration. If it's not listed, and it's functioning as a preservative, it can't be in the product.

How much preservative is safe to use in cosmetics?

It depends on the specific ingredient. Phenoxyethanol is capped at 1.0%. Methylparaben at 0.4% alone or 0.8% combined. Chlorphenesin at 0.3%. Combined totals across multiple preservatives must stay within limits, too, not just individual concentrations.

What is Annex II of the EU Cosmetics Regulation?

Annex II lists substances completely prohibited in EU cosmetics. Several parabens appear here. When any ingredient is reclassified as a CMR substance under CLP, it typically moves to Annex II.

What is Article 19 of the EU Cosmetics Regulation?

 Article 19 covers labelling requirements, INCI lists, mandatory warnings, nominal content and conditions of use. Mandatory label disclosures tied to specific Annex V preservatives must be met under Article 19.