CPSR for Baby and Children's Cosmetics: What Changes for Products Used on Under Threes, and How to Design a Range That Passes

Every parent who has stood in a chemist reading the back of a baby lotion knows the feeling: the list is short, the words are simple, and the trust is total. That trust is why baby products are the most exacting category a brand can make. Article 3 of Regulation (EC) No 1223/2009 requires safety to be judged with particular attention to the characteristics of the consumers for whom the product is intended, Annex I requires the safety assessor to specifically consider products intended for children under three, and the UK regulation enforced through the Cosmetic Products Enforcement Regulations 2013 follows. The Scientific Committee on Consumer Safety provides the exposure values and the microbiological guidance that make the assessment for children stricter in practice. None of it is optional, and none of it is hard if you design for it from the start.

This guide explains what changes in a CPSR when the product is for babies or children: why the assessment is stricter, the exposure recalculation, the microbiological limits, the ingredients restricted by law and by assessor practice, how fragrance and essential oils are treated, product by product notes from nappy balms to bath washes, the claims that need evidence, labelling, a worked example of an adult product becoming a baby product, and how to design a baby range that assesses cleanly the first time. The short list on the back of that lotion is not an accident. It is the result of everything below.

Why the assessment is stricter

A baby's skin is thinner and more permeable than an adult's, the barrier is still developing, the surface area relative to body weight is roughly two to three times higher, and the metabolic and detoxification systems that handle absorbed substances are immature. A baby also cannot report stinging or discomfort, is bathed and moisturised daily by a carer who applies generously, and puts hands, feet and everything else in the mouth. Every one of these facts pushes the same product towards higher exposure and lower tolerance, and the regulation's instruction to consider the consumer for whom the product is intended means the assessor must build them into the assessment rather than applying adult defaults.

Exposure recalculated

For an adult the assessor divides the daily amount of each ingredient absorbed by sixty kilograms. For an infant the assessor uses the guidance values for the relevant age and a body weight appropriate to it, and considers the higher surface area to weight ratio and the generous application typical of carers. The systemic exposure dose for the same product and concentration can be several times the adult figure, so a margin of safety that was comfortably above one hundred for an adult body lotion may fall below it for a baby lotion, and the permitted level of the ingredient falls with it. This is the single most important reason baby products contain lower levels of preservatives, actives and fragrance, and why a product assessed for adults cannot simply be relabelled for babies. Our guide to exposure assessment explains the calculation.

Microbiological limits for under threes

Products intended for children under three, along with products for the eye area and mucous membranes, are held to a stricter microbiological specification: a lower permitted total viable count and the absence of specified pathogens in a larger sample. The preservative system must demonstrably achieve this, so a water based baby wash, lotion or wipe solution needs a challenge test showing robust efficacy, and the assessor will scrutinise the preservative choice for suitability in the age group as well as for performance. Anhydrous baby balms and oils avoid the question by containing no water, which is one reason they are the easiest baby products to assess and the best place for a new brand to start.

Ingredients: restrictions, prohibitions and assessor practice

The annexes set the legal floor, but assessors apply a higher bar in practice for infants, excluding ingredients that are lawful but poorly justified in a baby product. A maker who submits a baby lotion with a fragrance, several essential oils and a novel active should expect Part B to remove or cap most of them, and the sensible course is to design them out before assessment rather than argue afterwards.

Product types and their particular questions

• Nappy balm. A cosmetic barrier product; claims must be protective, not treating nappy rash. Zinc oxide as a barrier ingredient is assessed at infant exposure; fragrance free.
• Baby wash and shampoo. Mildest surfactants at low levels, near neutral pH, robust gentle preservation, strict microbiological limits. Tear free is a claim needing evidence.
• Baby lotion and cream. Water based, so preservation and challenge test at the stricter limits; lowest fragrance or none; simple emollients.
• Baby oil. Anhydrous, no preservative; nut free carriers; fragrance free; the easiest to assess.
• Wipes. The lotion is a leave on product on a large area with mucosal contact; preservation and microbiology at the stricter limits; the substrate assessed too.
• Bath products. Diluted, but eye and mouth contact foreseeable; mildness and microbiology.
• Sun products for children. UV filters and SPF testing as for any sunscreen, with infant exposure and the advice that babies under six months should be kept out of the sun rather than protected by product.

Fragrance and essential oils: why they go first

If there is one change that transforms a baby product's assessment, it is removing fragrance. A fragrance concentrate brings dozens of constituents, several of them sensitisers, into a product used daily on skin whose barrier is still forming, and the infant exposure calculation multiplies the dose of each. Essential oils are worse rather than better, because they are rich in exactly those constituents and add phototoxic and respiratory concerns; peppermint, eucalyptus and camphor containing oils are unsuitable for young children on well established grounds. An unscented product has no allergens to declare, no sensitisation limits to defend and no oil specific cautions to label. Parents increasingly prefer it, and assessors always do. If a scent is essential to the brand, discuss the gentlest options with the assessor before formulating and expect a very low level with a full allergen declaration.

Claims that need evidence

Baby on the label is a claim that the product is intended for infants, and it commits you to the stricter assessment. Tear free or no more tears is a claim that the product does not sting the eyes, which requires specific evidence, typically ophthalmological assessment; without it, describe the product as gentle or mild. Hypoallergenic requires a design rationale minimising allergenic potential and evidence, which for a baby product means fragrance free at minimum. Dermatologist tested or paediatrician approved require the test or the approval to exist and to be documented. Suitable from birth, from three months or from six months are age claims the assessment must specifically support. Claims that a product treats nappy rash, cradle cap, eczema or colic are medicinal and prohibited. Our guide to cosmetic claims covers the criteria and the PIF claims table.

Wipes: the product everyone underestimates

Baby wipes deserve a paragraph of their own because they combine almost every difficulty in the category. The lotion is water based, so it needs preservation that passes the stricter microbiological limits. It is left on the skin, not rinsed off. It is applied many times a day to the nappy area, which is mucosal, occluded and frequently inflamed, and where children’s skin is far more vulnerable than adult skin. And the substrate, the wipe itself, is in contact with the product for months in a pack that is opened and closed repeatedly. The assessor treats the lotion as a leave on product at high frequency on a sensitive site, requires a challenge test at the stricter limits, considers the pack’s resealing and contamination risk, and assesses the substrate’s suitability. Because young skin has a less developed skin barrier, the assessor also weighs how repeated contact could affect it. A brand that starts with balms and oils and moves to wipes last will find the earlier work has prepared it; a brand that starts with wipes is starting at the hardest end.

Labelling

Baby product labels carry the standard elements plus any age statement the assessment supports, any warning required by an annex entry, such as the powder inhalation warning or a statement for an ingredient restricted for under threes, and often practical directions such as a patch test recommendation and avoid the eyes. Allergen declarations apply as for any product, and a fragrance-free product will have none to declare, which is one reason many baby brands avoid synthetic fragrance altogether. Parents searching for ingredients to avoid are really looking for reassurance, but the honest answer is not a blacklist of toxic ingredients. The assessor asks about dose, exposure and the margin of safety for each ingredient, and a label should never describe a product as non-toxic, because that wording is empty and implies others are poisonous. Keep the ingredient list short and readable, because parents read it, and because a short list is the visible proof of a careful formula.

A worked example: an adult body lotion becomes a baby lotion

A brand’s bestselling body lotion contains a light fragrance at 0.8 percent, a preservative at its adult permitted level and a botanical active at one percent, and the brand wants a baby version. The assessor recalculates exposure at infant body weight with generous carer application and finds three problems. The preservative’s margin of safety falls below one hundred. The fragrance declares four allergens and carries a constituent the assessor will not accept for infants, which makes it the red-flag ingredient in this formula. The active has no infant relevant data. These are the health risks that matter in practice, and none of them comes from a harsh ingredient in the everyday sense of the word; they come from a margin of safety that no longer holds at infant body weight. The baby version that passes removes the fragrance entirely, reduces the preservative to a level that restores the margin while a challenge test at the stricter limits confirms it still works, replaces the active with a well characterised emollient, and shortens the ingredient list by a third. It is a different product with its own CPSR, its own challenge test and its own PIF, and it is assessed for use from birth because that is what the label will say. The brand’s customers see a shorter list and trust it more. The brand sees a report that passed first time.

Designing a baby range that assesses cleanly

• Fragrance free. Removes the largest source of restrictions and allergen declarations.
• Nut free carriers. Sunflower, fractionated coconut, jojoba.
• Short ingredient lists. Fewer ingredients, fewer profiles, fewer margins to defend.
• Start anhydrous. Balms and oils first; water based products bring the stricter microbiology.
• Choose well characterised ingredients. With committee opinions and infant relevant data.
• State the age group before assessment. From birth, from three months, from six months, or for children over three.
• Plan claims early. Decide what you will say and what evidence you hold.

What to send the assessor

Everything in our standard preparation checklist, plus an explicit statement of the intended age group and the youngest age you will market to, the intended use and area including nappy area or eye area, any challenge test at the stricter limits, and any evidence for age, tear free or hypoallergenic claims. A product marketed for the whole family is assessed at the youngest user, so say so if that is the plan.

Myths we hear

• Gentle adult products are fine for babies. Exposure per kilogram is several times higher; the assessment is different.
• Natural means safe for infants. Essential oils are among the first things an assessor removes.
• Tear free is just a nice way of saying mild. It is a testable claim needing evidence.
• A short list is a marketing choice. It is the result of a strict assessment.
• I can add baby to the label of my existing lotion. Baby is a claim that triggers the stricter assessment of a different formula.

What to do this week

• Decide the age group for each product and write it down.
• Strip fragrance and essential oils from anything for under threes.
• Swap nut oils for sunflower or fractionated coconut.
• List every reassuring claim and the evidence you actually hold.
• Send the formula to the assessor before you order packaging.

The parent in the chemist is your customer, and the short list on the back of the bottle is the promise you are making. What reassures that parent is a formula assessed for infants, not a claim to be free of harsh ingredients. Design for the assessment and the promise keeps itself.

Official sources and legislation

• Regulation (EC) No 1223/2009 on cosmetic products, Article 3 and Annex I
• Cosmetic Products Enforcement Regulations 2013
• Scientific Committee on Consumer Safety (SCCS), Notes of Guidance
• OPSS guidance on cosmetic products regulations
• Office for Product Safety and Standards

Disclaimer: This article is general information, not legal advice. Regulations change and product decisions depend on your exact formulation, claims and market. Have your product assessed by a qualified professional before sale.